REALISATION EN EPC D’INSTALLATIONS DE PRODUCTION DE LINEAR-ALKYL-BENZENE <> A SKIKDA ALGERIE

CT-EPC/017/SH/EPM/RPC-X/2023

TCM IDENTIFICATION CODE

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VENDOR PRESERVATION GENERAL SPECIFICATION

2

1

0

04/10/2024

Issued for Final

17/09/2024

Issued for Final

02/05/2024

Issued for Information

S.Fernandez

S.Fernandez

S.Fernandez

D.Jesu

D.Jesu

D.Jesu

A.Personeni

A.Personeni

A.Personeni

Issue

Date

Reason for Issue – Revision Description

Prepared

Checked

Approved

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VENDOR PRESERVATION GENERAL SPECIFICATION

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TCM IDENTIFICATION CODE

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CONTENTS

1. VENDOR’S SECTION – VENDOR PRESERVATION GENERAL SPECIFICATION … 4

1.1

PURPOSE … 4

1.2 DEFINITIONS AND ABBREVIATIONS … 4

1.3 REFERENCE DOCUMENTS … 7

1.4

1.5

1.6

VENDOR’S DOCUMENTS AND INFORMATION REQUIRED … 7

VENDOR PRESERVATION GENERAL REQUIREMENTS … 8

VENDOR PRESERVATION OF STEEL STRUCTURES AND PIPING COMPONENTS … 10

CS STRUCTURES … 10 CS PIPES … 10 CS FITTINGS … 11 SS, NICKEL ALLOYS, TITANIUM ALLOYS STRUCTURES AND PIPING COMPONENTS … 12 EXTERNAL COATED (PAINTED) PIPING COMPONENTS, PIPELINE RUNS, AND SPOOLS … 12 THREE LAYERS POLYPROPYLENE-COATED (3LPP) PIPELINE RUNS … 13 FERRITIC AND AUSTENITIC STEEL PIPES IN CLEAN CLASS SERVICE … 13 PREFABRICATED MODULES (STRUCTURE + PIPE RACK) … 14 HDPE (POLYETHYLENE) PIPING COMPONENTS … 14

1.6.1 1.6.2 1.6.3 1.6.4 1.6.5 1.6.6 1.6.7 1.6.8 1.6.9 1.6.10 PVC (POLYVINYL CHLORIDE), CPVC (CHLORINATED POLYVINYL CHLORIDE), AND RTRP (REINFORCED THERMOSTATIC RESIN PLASTIC) PIPING COMPONENTS AND CONDUITS … 15 1.6.11 FBE (FUSION BONDED EPOXY) PIPING COMPONENTS … 15 1.6.12 CEMENT MORTAR LINED PIPING COMPONENTS … 16

1.7

1.8

1.9

VENDOR PRESERVATION OF VALVES … 16

VENDOR PRESERVATION OF FASTENERS (BOLTING) … 17

VENDOR PRESERVATION OF GASKETS … 17

1.10 VENDOR PRESERVATION OF STATIC EQUIPMENT (VESSELS, HEAT EXCHANGERS, SHOP PREFABRICATED TANKS) … 17

1.11

PROCEDURE FOR NITROGEN PURGING AND PRESSURIZATION … 19

1.11.1 DRYING … 19 1.11.2 NITROGEN PURGING AND PRESSURIZATION … 20

1.12 VENDOR PRESERVATION OF ROTATING EQUIPMENTY, MACHINERIES, AND MOTORS … 21

1.13

1.14

VENDOR PRESERVATION OF MECHANICAL AND DRY GAS SEALS … 23

VENDOR PRESERVATION OF TRANSFORMERS … 23

VENDOR PRESERVATION OF ELECTRICAL MATERIAL: CABLES, CABLE TRAYS,

1.15 JUNCTION BOXES, INPUT SWITCHES, LIGHTING FIXTURES, POLES, ELECTRICAL FITTING, ETC.

24

1.16

1.17

VENDOR PRESERVATION OF STORAGE BATTERIES … 24

VENDOR PRESERVATION OF SWITCHGEAR, STARTERS, CONTROL EQUIPMENT .. 24

VENDOR PRESERVATION OF INSTRUMENTATION, ELECTRONIC EQUIPMENT,

1.18 ELECTRIC/ ELECTRONIC CONTROL PANELS AND CABINETS (VSD, VFD, PCS, PLC, ETC.), TRANSMITTERS, INDICATORS, ANALYSERS … 25

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1.19 VENDOR PRESERVATION OF MISCELLANEOUS MATERIALS (PAINTING, CHEMICAL, INSULATION, REFRACTORY, WELDING) … 26

VENDOR PRESERVATION OF FIRE FIGHTING AND SAFETY EQUIPMENT (HYDRANT,

1.20 MONITORS, SPRINKLERS, SAFETY SHOWERS, EXTINGUISHERS, CLEAN AGENT BOTTLES AND NOZZLES) … 26

1.21

VENDOR PRESERVATION OF SPARE PARTS AND SPECIAL TOOLS … 26

INFORMATION TO BE VISIBLE OUT OF THE PACKAGE … 27 1.21.1 INFORMATION TO BE PROVIDED INSIDE THE PACKAGE … 27 1.21.2 1.21.3 BASIC PACKAGING AND PRESERVATION REQUIREMENTS … 27

1.22

VENDOR PRESERVATION CARD TEMPLATE … 28

1.22.1 PRESERVATION ACTIVITIES DURING SITE STORAGE (WHEN THE MATERIAL IS IN THE ORIGINAL PACKAGE) … 28 1.22.2 PRESERVATION ACTIVITIES AFTER INSTALLATION (WHEN THE MATERIAL IS INSTALLED)

28

1.22.3 PRESERVATION CHECKLIST … 29

APPENDICES:/

ATTACHMENTS:/

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1. VENDOR’S SECTION – VENDOR PRESERVATION GENERAL SPECIFICATION

1.1

PURPOSE

a. This specification provides minimum requirements and gives recommendations for preservation activities to be used on the project. It is applicable to all equipment and materials which will be supplied to the point of delivery at site.

b. This document defines the minimum requirements to be applied at the VENDORS (and SUB-

VENDORS) shop to protect equipment and material from corrosion, damage, and deterioration during storage after manufacturing at VENDORS (or SUB-VENDORS) premises, before shipping, during shipping, and during site storage.

c. This specification, especially for packages, equipment, and machineries, provides preservation tasks based on rules of good practice. These shall be followed, as far as possible, unless it is demonstrated they are not feasible or not reliable for a specific supply. In such cases different alternatives can be chosen by the VENDOR.

d. Vendor Preservation is the combined set of all preservation tasks and activities done by the

VENDORS (and by the SUB-VENDORS) on their supplies, to face transportation at site (shipping) and site storage. The Vendor Preservation begins right after the end of the manufacturing process at the VENDOR’s workshop and is completed prior to delivery or upon delivery at site. The Vendor Preservation is described in the VENDOR preservation procedures.

e. Vendor Preservation shall be monitored by the inspection reports specified by ITP, in particular by

the final inspection report before shipping.

f. The VENDOR shall protect, combining Vendor Preservation and package, the supplied equipment and materials from damage and corrosion to withstand transportation and long-term site storage up to twelve (24) months from delivery date to site. The VENDOR preservation procedure shall include the additional activities to extend the preservation for the spare parts up to 24 months (beyond the initial 24 months) at site.

g. Unless specifically mentioned, agreed, or approved, the VENDOR shall package (where

applicable) and preserve the supplies considering the possibility to apply the worst site storage class first (outdoor unsheltered), followed by the second (outdoor sheltered) if the first is not possible or applicable in any circumstances, and proceeding likewise with the third (indoor non- conditioned) and the fourth (indoor conditioned) in line. The VENDOR standard preservation shall be based on this approach.

h. Vendor Preservation and package are the only guarantee for the preservation during

transportation at site (shipping). The same are the main guarantee for the preservation during site storage but they need support of Site Preservation. During/ after installation the preservation can only rely on Site Preservation. Within the context of preservation, the presence of a package can be seen as a Vendor Preservation task.

1.2

DEFINITIONS AND ABBREVIATIONS

AOS

BULK ITEM

Arrival on Site.

An item having no distinctive tag number but is part of a tagged item or of a tagged family. Spare parts and special tools, if they are related to any tagged items or to multiple tagged items, will also be considered bulk

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VENDOR PRESERVATION GENERAL SPECIFICATION

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items.

BULK MATERIAL

CONTRACT

Non-tagged item material that is sold, ordered, purchased, and stored by weight, volume, quantities, or lots.

Realisation en EPC d’une Installation de PRODUCTION DE LINEAR- ALKYL-BENZENE – LAB – SKIKDA - ALGERIE.

CONTRACTOR

MAIRE Integrated E&C Solutions.

CORROSION RESISTANT ALLOY (CRA) Stainless Steel (SS), Duplex, Nickel Alloys, Titanium Alloys, and any other metal or alloy that do not easily rust on the surface.

DOCUMENTS/ DOCUMENTATION Any kind of softcopy or hardcopy file, used to share or transmit

information from one party to another.

EQUIPMENT

FERRITIC STEEL

GOODS

Static, Rotating, Machineries, Packages. Can be shop fabricated or site assembled.

Carbon Steel (CS), Low Temperature Carbon Steel (LTCS), Low Alloy Steel (P11, P22, P5, P91, etc.) that easily rust on the surface.

Any and all things, including but not limited to equipment and materials (including spare parts) required to be incorporated in the supply specifications.

INSPECTION

An activity to check that design, materials, fabrication, and testing comply with the requirements of the specification.

IOM

ITP

LICENSED UNITS

MPC

SMPC

Installation Operation Maintenance.

Inspection Test Plan.

The process units, designed and licensed by the LICENSOR to the OWNER for processing the feedstock and producing the blending components and/or to make the final or finished product grades.

Material Preservation Coordinator. CONTRACTOR’s home office preservation responsible.

Site Material Preservation Coordinator. CONTRACTOR’s site preservation responsible.

MAINTENANCE PRESERVATION Set of preservation tasks, activities and inspections done by the OWNER required to monitor and maintain the preservation of the items during operation/ service.

MANUFACTURER

MATERIAL

The party responsible for the manufacturing of a part or of the entirety of specified equipment.

Project material supplied for construction, pre-commissioning, and commissioning, including consumables and spare parts.

MAY/ CAN

Indicate action to be undertaken at the CONTRACTOR’s discretion.

MOTHBALLING PRESERVATION Set of preservation tasks, activities and inspections required to monitor and eventually maintain the preservation of items previously operated by the OWNER, during deactivation/ decommissioning for overhaul, revamping, or refurbishment, possible future use, or sale.

MPE

MR

Material Preservation Engineer. CONTRACTOR’s home office preservation engineer.

Material Requisition.

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MSDS

NCR

OSD

Material Safety Data Sheet.

Non-Conformity Report.

Over Short and Damage report.

COMPANY/ OWNER

SONATRACH.

POD

PROJECT

Point of Delivery.

Realisation en EPC d’une Installation de PRODUCTION DE LINEAR- ALKYL-BENZENE – LAB – SKIKDA - ALGERIE.

PURCHASE ORDER (PO) The contract between the CONTRACTOR and the VENDOR for the

supply of goods and services.

SHALL AND MUST

Indicate mandatory requirements.

SHOULD

Indicate strong recommendation.

SITE PRESERVATION

SPARE PART

SPECIAL TOOL

SUB-CONTRACTOR

SUB-VENDOR

Combined set of preservation tasks, activities, and inspections done by the SUB-CONTRACTORS (under CONTRACTOR supervision), to monitor and extend the Vendor Preservation of the supplies during site storage, and to pursue the preservation when the items are out of their package, during construction (fabrication, assembly, installation, erection, pre-commissioning, commissioning, idle time if any, start-up, and handover to the COMPANY/ OWNER. Each vendor preservation procedure shall provide recommendations and suggestions for the Site Preservation, considering also what is suggested by the IOM manuals, in form of a site preservation card included in the procedure.

Item, component, sub-assembly, or assembly, identical to the part to be substituted/ replaced.

Tool specifically designed for the assembly, installation, erection, commissioning, operation, or maintenance, of the supplied part/ component.

The party which carries out all or part of the design, procurement, assembly, installation, erection, and testing of the systems as specified by the CONTRACTOR, or by a VENDOR.

Party contracted by a VENDOR to carry out project works or services on VENDOR behalf. A SUB-VENDOR may appoint further SUB-VENDORS for the supply of equipment, materials, or services.

TAGGED ITEM

An Item having distinctive tag number.

TDS

TPIA

VCI

Technical Data Sheet.

Third Party Agency.

Vapor Corrosion Inhibitor.

VENDOR PRESERVATION Combined set of all preservation tasks and activities done by the VENDORS (and by the SUB-VENDORS) on their supplies, to face transportation at site (shipping) and site storage. The Vendor Preservation begins right after the end of the manufacturing process at the VENDOR’s workshop and is completed prior to delivery or upon delivery at site. The Vendor Preservation is described in the VENDOR preservation procedures.

VENDOR/ SUPPLIER

The party responsible for the supply of goods or services associated with the CONTRACTOR’s purchase order/ contract.

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VpCI

VSI

Vapor Phase Corrosion Inhibitors.

Vapor Space Inhibitor.

1.3

REFERENCE DOCUMENTS

/

1.4

VENDOR’S DOCUMENTS AND INFORMATION REQUIRED

a. The VENDORS shall submit to the CONTRACTOR their Vendor Preservation Procedure, including eventual SUB-VENDOR procedures, before transportation (shipping). The Vendor Standard Preservation Procedures shall be tailored on the supplies under purchase order and with the conditions agreed during the bidding phase.

b. The Vendor Preservation Procedures shall include the following information:

1. Instructions and data applicable to the VENDOR’s warranty.
2. Vendor Preservation details for each part, component, and appurtenance. Including what is

specified and detailed in the IOM manuals, related to preservation.

3. Eventual de-preservation instructions to be done before installation (such as removal of locking

devices, removal of protective temporary coatings, removal of VCI, etc.).

4. Recommended Site Storage Classes for each part, component, and appurtenance:

A. Outdoor Unsheltered. B. Outdoor Sheltered. Storage under protective roof. Weatherproof covers such as plastic layers, tarpaulins, package lids, wrappings, etc., shall not be considered shelters.

C. Indoor Non-Conditioned. Storage in warehouse. D. Indoor Heated Area. Storage in warehouse with temperature above a minimum specific

value.

E. Indoor Conditioned. Storage in warehouse with temperature and humidity control.

5. TDS (technical data sheets) and MSDS (material safety data sheets) for preservation consumables used for the Vendor Preservation. They shall include application notes with quantities, guaranteed preservation protection time, re-preservation and de-preservation notes, disposal instructions.

6. Estimated square meters (or square feet) of land occupation for the supply, placed in the recommended site storage class, following common rules of good practice for stacking and material handling.

7. Site Preservation Card (attached to the present document) relevant to the Site Preservation for each part, component, and appurtenance of the supply. They shall provide details for cleaning/ preservation consumables required, recommended, or suggested at site. Two distinct sections are required: a) inspections, checks, tasks, and activities (with related frequencies) to be done during site storage (when the equipment/ materials are in the original package), b) inspections, checks, tasks, and activities (with related frequencies) to be done before, during, and after installation (when the equipment/ materials are taken out from the original package to be installed).

8. Eventual de-preservation instructions to be done before pre-commissioning or commissioning.

9. Re-preservation instructions in case of extended idle time during storage or after installation.

10. Instructions to properly inspect equipment/ materials at any time without impacting original

packages and preservation.

11. Highlights/ marks for all revised, upgraded, added, or modified parts of each new document

version, to easily compare with the previous.

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c. The VENDORS shall advise the CONTRACTOR if alternative methods/ means of preservation are more convenient/ reliable or better suited for the intended application. Such recommendations shall be subject to the approval of the COMPANY/ OWNER and of the CONTRACTOR.

d. The VENDORS shall notify the CONTRACTOR when preservation products contain Cu, Ag, Hg, Mg compounds; Delrin; fluoro polymers such as PTFE, FEP, PFA renowned with trade names such as Teflon, Gore-Tex, Viton, Kevlar, Kalrez, etc.; silicone polymers or polymerized siloxanes; graphite in any form.

e. The VENDORS shall make sure that the site storage classes marked on the packages (or on the shipping containers) be the same of what is written on the packing lists, on the packing procedures, and on their preservation procedures.

1.5

VENDOR PRESERVATION GENERAL REQUIREMENTS

a. The VENDORS shall use proper packages, approved by CONTRACTOR and COMPANY, to guarantee suitable and adequate packing protection to the supplies, according to transportation conditions, environmental regulations, and site storage conditions. The project approved Packing Specification provides a series of standard and minimum packing requirements to be followed by the VENDORS.

b. Any dirt, dust, sand, rust, oils, scales, slags, etc., shall be removed by the VENDOR before packing and shipping. Cleaning fluids shall be completely drained and dried prior to closing, packing, and shipping.

c. The VENDORS shall use cover sheets (good quality tarpaulins or strong polyethylene plastic sheets) to cover packages and sensitive parts/ components of equipment and machineries. They shall be waterproof, durable to the wind and sun. They shall be tightly stapled in multiple points around the sides (not on the top), undamaged (no cuts, piercings, pinholes, and abrasions), and shall cover the top and skirt about 1/3 of the sides (2/3 for crates). Covers sheet edges and flaps shall not stick out, to avoid their damage during handling, lifting, and loading.

d. To prevent as much as possible water, dirt, dust, sand, and any kind of contaminants from making their way into the packages, internal liners, closed plastic bags, and plastic wrappings shall be applied by the VENDOR to protect the supplies or their more sensitive parts. Seaworthy packages shall have built-in waterproof liners under the top and the sides. The liner is more effective when installed between the frame and the panel, or between two different elements of the panel. If not possible, the liner shall be stapled under the top and the inner sides.

e. To prevent as much as possible water, dirt, dust, sand, and any kind of contaminants from making their way into parts, components, and appurtenances of equipment and machineries without protective packages, it is important that each opening be properly blinded, covered, plugged, capped, or wrapped by the VENDOR. Press-fit, push-on caps/ plugs shall be used. Heavy-duty polyethylene industrial wrapping and duct tape can also be used, where caps and plugs cannot be applied. Tied-up or glued caps/ plugs are generally not acceptable. Loose caps/ plugs shall be secured with anti-corrosion weatherproof tape.

f. Material of different metallurgy shall be always packed separately by the VENDOR (non in close contact or in condition to contaminate each other). They can be maintained in the same package but must be properly isolated. This is true especially for ferritic steel, austenitic steel, nickel alloys, and titanium alloys, which must be protected from contaminants, using PE plastic wrappings, films, membranes, bags, etc.

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g. Eventual tropicalized supplies (with Vendor Preservation tailored for tropical weather, designed to counter micro-organisms growth and high humidity) shall be properly preserved by the VENDOR.

h. Spares parts (including capital spares) and special tools shall be stored indoor non-conditioned or indoor conditioned (according to the type) in separate areas and shall be properly preserved by the VENDOR.

i. Any items or loose materials, parts of packages, equipment, or machineries, supplied separately,

shall be properly preserved, and identified by the VENDOR.

j.

If nitrogen or different inert gas is used for the preservation of the supplies, some well visible markings, warning tags, or labels shall be provided on the package or on the equipment by the VENDOR stating, as an example: “DANGER – VESSEL FILLED WITH NITROGEN UNDER PRESSURE – ASPHYXIATION HAZARD”. A robust system of labels shall be used (such as tie-on labels). Stick-on labels may be used if they can stand in good conditions for 24 months.

k. Nitrogen under pressure in standard cylinders with safety labels is considered dangerous good and shall not be used for refilling purpose during transportation (shipping) by the VENDOR. Backup cylinders labeled as dangerous good will not be allowed to cross the border, together with the rest of the equipment. Built-in low-pressure cylinders which do not need safety labels may be an option, but the best solution is that the VENDOR must be gauge-confident that hermetic sealing and no leakage is present, before shipping the equipment. Purging and pressurizing at least a week before shipping is the easiest and recommended way. It is also recommended to lock each nitrogen isolation valve of the equipment before shipping, to avoid any mishandling.

l.

If desiccants or VCI products are used for the preservation of the supplies (or specific parts and components) they need to be removed before commissioning, and a warning tag/ label/ wording stating as an example: “Caution – Desiccants/ VCI products to be removed before commissioning” shall be placed by the VENDOR on the package or on the equipment, and their types, quantities and positions shall be specified.

m. If barrier bags, sealed bags, or vacuum bags are used for the preservation of the supplies (or specific parts and components), their air tightness shall be checked by the VENDOR. To do that, the exceeding air should be squeezed out as much as possible before sealing, or even better a slight vacuum (just 6mbar below the atmospheric pressure is enough) should be done before sealing. In case integrity of barrier bag is lost, the desiccants inside shall be replaced and the bag re-sealed.

n. If temporary rust preventive coatings are used for the preservation of the supplies (or specific parts and components) they need to be removed before commissioning, and a warning tag/ label/ wording stating as an example: “Caution - Temporary coating to be removed before commissioning” shall be placed by the VENDOR on the package or on the equipment. The application of a temporary rust preventive coating shall be approved by CONTRACTOR. If not approved, the removal will be back charged. The VENDOR shall always provide the removal procedure.

o. Internal and external surfaces shall be clean (no dirt, dust, sand, rust, oils, scales, slags, etc.) and dry, before any layer of temporary or permanent coating is applied by the VENDOR. Proper mineral standard solvents without aromatic compounds (no kerosene, gasoline, benzene, toluene, etc.) in the chemical composition should be used. Or alkaline cleaners. Paraffinic refined distillates such as mineral spirit or white spirit, aliphatic petroleum naphtha, are appropriate.

p. If hydro-test performed by the VENDOR is required, the approved use of a biodegradable VCI additive to dilute in the hydro test water, such as the Cortec VpCI-609 powder or the Cortec VpCI-

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641 liquid (or equivalent) is always recommended. The treated water can be re-used multiple times, provided it does not become contaminated, and the item does not need to be dried later, just drained, and closed.

1.6

VENDOR PRESERVATION OF STEEL STRUCTURES AND PIPING COMPONENTS

(Steel Structures includes primary/ secondary steel structures, piping/ equipment supports, non- assembled plates of tanks/ silos/ stacks, equipment internals).

a. Steel Structures and Piping Components, no matter if they are packaged in boxes, cases, crates, pallets, bundles, unit loads, or as single items, shall be always shipped and stored in a position suitable to avoid water pockets/ caches, and to facilitate water draining. They shall also be well raised up off the ground (at least the height of a standard pallet).

b. Any surfaces to be coated shall be clean (no dirt, dust, sand, rust, oils, scales, slags, etc.) and dry,

before application.

c. For Structures and Piping Components supplied/ prefabricated with the permanent coating

(painted) or galvanized, according to the project painting specification, the coating shall be free from defects (such as runs, scratches, exposed metal surface, rust, etc.), and wood blocks, battens, pads, mats, saddles, bearers, sleepers, rubber sheets, spacers, proper handling equipment, etc. shall be provided/ used by the VENDOR to protect the paint or the galvanic layer during handling, transportation, and storage.

d. Handling damages (such as cuts, cracks, bends, buckles, etc.) to the surfaces, to the extremities, and to the coating shall be avoided. Cross bracings for large diameter/ low thickness components shall be provided by the VENDOR.

e. Steel Structures and Piping Components shall not be placed directly on the ground but shall lay or be stacked on a flat surface, free of protrusions, assuring full uniform bearing for the length, or shall be provided by the VENDOR with suitable bearing strips equally spaced to avoid bending/deformation. Separate stacks shall be prepared by the VENDOR, to divide material by different diameter, thickness, and grade. Each stack shall not be higher than 2 meters.

1.6.1 CS Structures

a. CS Structures shall be supplied by the VENDOR with 1 or 2 layers (at least 45 microns are

generally required) of a high-quality temporary rust preventive varnish. Hard/ firm, or waxy varnish. All surfaces shall be treated. Application shall be done (according to TDS) by spraying, brushing, filling, flushing, or immersion.

b. Fire-proofed parts shall be supplied painted (according to the project painting specification) and

shall be protected by the VENDOR from any mechanical damage before shipping.

1.6.2 CS Pipes

a. The inside of CS Pipes shall be dry, clean, bare metal without any coating, with no more than rust

grade A or B according to the standard SSPC-VIS 1.

b. CS Pipes shall be supplied by the VENDOR with 1 or 2 layers (at least 45 microns are generally required) of a high-quality temporary rust preventive varnish. Hard/ firm, or waxy varnish. Only the external surface shall be treated. Application shall be done (according to TDS) by spraying or brushing.

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c. All CS Pipes not supplied inside a closed rainproof package such as a container, a case, or a box shall have the extremities closed/ covered/ protected by plugs, caps, or blinds. Loose caps and plugs shall be secured by anti-corrosion and UV resistant weatherproof tape. Properly assembled covers such as strong UV/ wind resistant multiple wrapping sheets or tarpaulins can also be used after approval. For example, pipeline runs handled by double hook system are effectively supplied with metal bevel protectors and built-in plastic sheet/ membrane.

1.6.3 CS Fittings

a. As a general principle, CS Fittings shall be preserved by the VENDOR likewise the CS Pipes: temporary hard/ firm or waxy rust preventive varnish only on the external surface, nothing inside. However, Immersion applications in a hard/ firm, or waxy varnish is also accepted by the PROJECT if not expressly specified in the supply specification.

b. All CS Fittings not supplied inside a closed rainproof package such as a container, a case, a box, a lined crate, or a plastic multi wrapped pallet shall have the extremities closed/ covered/ protected by plugs, caps, or blinds. Loose caps and plugs shall be secured by anti-corrosion and UV resistant weatherproof tape. Properly assembled covers such as strong UV/ wind resistant multiple wrapping sheets or tarpaulins can also be used after approval. Doing multiple wrappings, rainwater seepage must be always prevented: heavy duty LDPE stretch wrap shall be applied by the VENDOR winding from the bottom to the top, not the opposite.

c. CS forged-screwed Fittings and CS socket weld Fittings shall be coated with a soft film of protective grease or oil and shall be packed inside closed rainproof packages such as containers, cases, boxes, lined crates, or plastic multi wrapped pallets.

d. Flange faces shall be always covered by proper flange face protectors made of soft material. Adhesive tapes such as duct tapes shall not be used. Ring joint grooves shall be filled with rust preventive grease.

e. Threaded ends shall be protected by a rust preventive grease.

f. CS Fittings supplied inside a closed protective package such as a container, a case, a box, or a lined crate can be effectively preserved by VCI (vapor corrosion inhibitor) powder such

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as Cortec VpCI-309 SF (or equivalent). Indicated for clean class (polished/ low roughness) service.

g. CS Fittings supplied inside a closed protective package such as a container, a case, a box, or a crate can also be preserved by barrier bags with desiccants (at least 1kg per cubic meter or 1oz per cubic feet). A single barrier bag placed inside the package can be used. Indicated for clean class (polished/ low roughness) service.

1.6.4 SS, Nickel Alloys, Titanium Alloys Structures and Piping Components

a. According to the supply specification, all surfaces shall be clean, dry, and completely passivated

before shipping.

b. Structures and Piping Components of different metallurgy shall be always packaged separately (non in close contact or in condition to contaminate each other). They can be maintained in the same package but must be properly isolated. Contamination from carbon steel (CS) and his rust easily affects stainless steel (SS), nickel alloys, and titanium alloys.

c. To prevent contamination of surfaces during long term storage, if a closed protective package such as a container, a case, a box, or a lined crate is not foreseen, the use of chloride free protective plastic wrappings, films, membranes, or bags should be always included in the standard VENDOR offer. The humidity condensation shall always have the possibility to ventilate through holes or openings underneath.

d. LDPE and LLDPE peel-off protective films are allowed and recommended but the supplier shall guarantee they do not degrade over time due to UV and high temperature exposure. They shall be guaranteed for transportation and site storage and shall be certified by the producer.

e. Structures and Piping Components not supplied inside a closed rainproof package such as a container, a case, a box, a lined crate, or a plastic multi wrapped pallet shall have the extremities closed/ covered/ protected by plugs, caps, or blinds. Loose caps and plugs shall be secured by anti-corrosion and UV resistant weatherproof tape. Properly assembled covers such as strong UV/ wind resistant multiple wrapping sheets or tarpaulins can also be used after approval.

f. A small quantity of vapor phase corrosion inhibitor can be placed inside the pipes prior to wrapping,

or inside the protective polyethylene plastic bags.

g. Small-bore SS and CRA Piping Components (same or less than 2”) are recommended to be delivered at site without any temporary coating inside barrier bags with desiccants (at least 0.5kg per cubic meter or 0.5oz per cubic feet), or inside VCI bags with VCI emitters (breathable membranes, pouches, tablets, foams, papers). A rainproof closed package such as a box, a case, or an internally lined crate with the lid shall be used. A single barrier or VCI bag placed inside the package can be used. End covers are not necessary since the pieces are inside a closed package.

1.6.5 External Coated (Painted) Piping Components, Pipeline Runs, and Spools

a. Internal surfaces shall not be coated unless specifically required in the supply specification.

b. The external coating (painting or final coating system) shall be applied by the VENDOR or by the

pre-fabrication SUB-CONTRACTOR according to the project painting specification.

c. External surfaces shall be clean (no dirt, dust, sand, rust, oils, scales, slags, etc.) and dry, before

any coat is applied.

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d. Coating applied shall be free from defects such as runs, scratches, exposed metal surface, etc.

e. End covers (caps, plugs, blinds, tapes, plastic films, wrappings, membranes) and bevel protectors shall be applied by the VENDOR when there is no close package protecting the material. They should be installed before painting application to not impair flange faces serviceability and bevels welding. After painting, to prevent rust buildup on bare parts, covers and bevel protectors should be removed by the VENDOR and a rust preventive oil applied on the extremities.

f. Wide enough wood blocks/ planks, battens, pads, mats, saddles, bearers, sleepers, rubber

sheets, spacers, sandbags, etc. shall be provided by the VENDOR to separate pieces and parts and protect the paint during packaging, shipping, storage, and handling. Pieces and parts shall never be rolled or dragged on the ground and shall stay at least 150mm above ground during storage.

g. Any epoxy phenolic primer (EPP) coating applied before insulation or fireproofing may slightly chalk on the surfaces exposed to the sun. Shading or tarps covering shall be provided by the VENDOR.

1.6.6 Three Layers Polypropylene-Coated (3LPP) Pipeline Runs

a. The coating shall be protected by the VENDOR during transportation and handling. Multiple thick ropes evenly distributed may be used between each single layer and pipe. There is a special adjustable transportation system based on LDPE blocks and steel rails which could be considered by the VENDOR.

b. Before stacking for transportation, high-density granulate anti-skid spacers with frictional

resistance shall be used by the VENDOR to protect the pipes from damage. The spacers go between each pipe layer. Same result can be obtained using multiple thick ropes evenly distributed between layers.

c. UV sun exposure is detrimental to the coating system and the pipes must be shaded or covered

by tarps. The VENDOR shall include them in the standard offer.

d. To prevent coating disbondement at the extremities, which occur as a result of undercutting

corrosion of cutbacks and high residual stress, a temporary rust preventative coating shall be applied by the VENDOR, such as Alkyd Interprime 198 (or equivalent).

e. Cross bracings for large diameter/ low thickness pipes shall be provided by the VENDOR. Metal bevel protectors only if considered in the supply specification. End covers (caps, plugs, tapes, plastic films, wrappings, membranes) shall be provided by the VENDOR if pipes are supplied loose. Plugs without flanges are the most indicated.

1.6.7 Ferritic and Austenitic Steel Pipes in Clean Class Service

a. Pipes under clean class (polished/ low roughness) service can be effectively preserved by VCI

(vapor corrosion inhibitor) powder without silicates, phosphates, nitrites, or heavy metals such as Cortec VpCI-309 SF (or equivalent) applied inside by dusting, fogging, or sprinkling. According to the supply specification, proper internal cleaning to remove dirt, dust, contaminants, flesh oxidation, rust, oils, mill scales, and slags shall be done before. 300g for each cubic meter of internal piping volume is the recommended quantity. Fogging is easily achieved with a low- pressure air hose and sandblast cup or by inverting a wet/dry vacuum. Large conventional sandblasting systems can also be used. To avoid caking of powder, do not over apply or unevenly disperse the dry powder. After the application, the extremities must be closed. If product removal is required, low-pressure air guns is enough.

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b. Pipes under clean class (polished/ low roughness) service can also be effectively preserved by VCI (vapor corrosion inhibitor) water-based solution such as Cortec VpCI-337 (or equivalent). applied by fogging or misting. 0.3 litres/ cubic meter of internal volume for ferritic steel. 0.1 liters/ cubic meter of internal volume for austenitic steel are the recommended quantities. Fogging or misting is easily achieved by spraying the product uniformly with a high-pressure spray gun inside the volume. After the application, the extremities must be closed. If product removal is required, water rinses is enough. Drying shall follow.

1.6.8 Prefabricated Modules (Structure + Pipe Rack)

a. Modules shall be designed to avoid water pockets/ caches and to facilitate water draining.

b. SS structures and piping lines shall be delivered at site completely passivated and clean. A

chloride free, heavy-duty industrial wrapping (such as LDPE) is recommended to prevent any contamination. Rainwater draining and ventilation shall be guaranteed underneath.

c. After clean erection of the lines, the biodegradable Cortec VpCI-609 (or equivalent) shall be

applied in dry form by fogging, or in aqueous form diluted in the hydro-test water, by flushing.

d. Fogging, dusting, or sprinkling are easily achieved by using a low-pressure air hose and sandblast

cup. Large, conventional sandblasting systems can also be used. Regular VpCI-609 has the tendency to clump. For dry fogging application the use VpCI-609S is more indicated if silica is acceptable.

e. For aqueous application, the hydro-test water can be drained and reused without drying the lines.

The lines shall be capped or plugged after.

f. When required, the powder can be easily removed by using a low-pressure air gun or by water

flush. After water flush, the lines must be dried.

1.6.9 HDPE (Polyethylene) Piping Components

a. HDPE Piping Components shall be protected by the VENDOR against deterioration from exposure

to ultraviolet light and weathering effects. Color and black products shall be compounded with antioxidants, thermal stabilizers, and UV stabilizers.

b. HDPE Piping Components internal and external surfaces shall be preserved clean and smooth (uniform in finish) during transportation, so that any scoring, cavities, and other surface defects such as voids, cracks, crazing, foreign inclusions, or deep scratches, will be always minimized. The internal surfaces shall be also preserved free of cuttings and shavings.

c. No mineral solvents or liquid hydrocarbons shall be used for cleaning: just water or compressed

air.

d. Reasonably heavy Piping Components, no matter if on racks, saddles, pallets, wood blocks,

battens, or bearers, shall always be laid leveled and flat, placed on at least 10cm wide wooden dunnage, evenly spaced at intervals of 1m or less, kept away from hot surfaces or heat sources (other than the sun). Narrow support surfaces or a wrong stacking could produce high concentrated stress (point loading) and out of roundness (ovality) tolerance.

e. HDPE fitting, HDPE stub-end (flange adapters), eventual flange gaskets and special couplings shall be packed in boxes covered by tarpaulins (or equivalent). Steel lap joint flanges (back-up

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ring) should have been first zinc hot dip galvanized and later packed in boxes covered by tarpaulins (or equivalent).

f. HDPE piping ends shall be preserved cleanly cut, without ledges, shaving tails, burrs, or cracks.

g. Rigid plastic caps of the same OD diameter shall be used when the material is not packaged

inside a closed box. Press fit or push on caps are acceptable, heat shrinkable caps are not, and they shall not be greased but secured with weatherproof tape. Plastic films should not be used.

h. Cross bracing to preserve toe-In tolerance, for stacked piping components with OD greater than

500mm, shall be used.

i. Special tools, accessories and machines shall be packed according to the supplier instructions.

1.6.10 PVC (Polyvinyl Chloride), CPVC (Chlorinated Polyvinyl Chloride), and RTRP (Reinforced

Thermostatic Resin Plastic) Piping Components and Conduits

a. Piping components and conduits shall be protected by the VENDOR against deterioration from exposure to sunlight. Plastic tarps (non-transparent) shall provide adequate air circulation above and around, to prevent excessive heat which can cause discolorations and deformations.

b. PVC should not be exposed to temperatures above 65°C (150°F). CPVC not above 100°C (210°F).

c. Sagging and bending shall be prevented during transportation by proper supports by the VENDOR. They should be shipped in the unit packages (skids) provided by the factory. Unit packages should be supported by wooden racks or other suitable means and spaced properly to prevent damage.

d. Compressions, damages, or deformations shall be avoided. When unit packages are stacked, care must be used to ensure that the weight of the upper units does not cause deformation to pipe in the lower units. Package units should not be stacked more than 2 meters high.

e. Piping components and conduits shall not be dropped, have objects dropped on them, or be subjected to external loads during transportation. They can be damaged by abrasion and gouging. Pipes and conduits must not be dragged across the ground or over obstacles. Impacts such as dropping from sizable heights and/ or rough hauling should be avoided, particularly in cold weather. They shall be inspected for any scratches, splits, or gouges before shipping. If found, these sections must be cut out and discarded.

1.6.11 FBE (Fusion Bonded Epoxy) Piping Components

a. FBE pipes shall be stacked separately and not directly against each other during transportation. They should be separated by full encirclement non compressible rubber pads or equivalent, at least 10 mm thick provided by the VENDOR. Generally, they are shipped in unit packages (skids) provided by the factory supported by wooden racks or other suitable means and properly spaced to prevent damage.

b. Additional separation pads shall be used by the VENDOR, if necessary, to keep the pipes from touching each other. Two pads shall be located about 1 meter from the extremities; other pads to support the center section at a distance of about 5 meters. Separation pads shall stay in place tying by plastic wrapping.

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1.6.12 Cement Mortar Lined Piping Components

a. Piping components shall be protected by the VENDOR from damage and deterioration during

handling and transportation.

b. Multiple pick points shall be considered, especially for heavy and slender pieces, to prevent lining cracks. Generally, a single centre pick point or 2 pick points are enough (spacing not less than the 3rd points of the item length i.e., no closer than 4m if the length is 12m). Belt slings shall be used. Unpadded chains or cables shall not be used. Hook lifting and flange bolt holes shall never be used.

c. Careful handling shall be done. Sharp impacts can damage the lining, especially at the

extremities. Forklift handling can be done but each piece must be chocked to prevent rolling and impacts. Padding material such as pads, mats, sleepers, rubber sheets etc. shall be always used, also inside a closed package, or on a pallet.

d. Pipe supports during transportation shall not be closer than 30cm from the extremities and wide enough to prevent excessive point loading. Wooden wedges shall be used to prevent rolling. Flanged extremities of heavy and slender pieces shall never be used as point loading.

e. The cement mortar lined internal surface shall be moistened with clean water before transportation to prevent excessive drying and cracking of the liner. Caps and plugs shall be always in place and provided by the VENDOR to retain the moisture. A good indicator of acceptable moisture is when condensation droplets are visible on the inside of the covers.

f. Fastening, gaskets, lubricants, joint diapers, grout bands, and mechanical couplings shall be duly

packed and preserved for indoor non-conditioned storage.

1.7

VENDOR PRESERVATION OF VALVES

a. Any dirt, dust, sand, rust, oils, mill scales, and slags shall be removed by the VENDOR before packing and shipping. Liquid used for cleaning or for hydro-test (if not treated with soluble VCI) shall be completely drained and dried, prior to closing and sealing for shipment.

b. All Valves not supplied inside a closed rainproof package such as a container, a case, a box, a

lined crate, or a plastic multi wrapped pallet shall have the extremities closed/ covered/ protected by plugs/ caps/ blinds of plastic, metal, wood, or hardboard to prevent ingress of water, dirt, dust, and contaminants. Properly assembled covers such as strong UV/ wind resistant multiple wrapping sheets or tarpaulins can also be used after approval. Doing multiple wrappings, rainwater seepage must be always prevented: heavy duty LDPE stretch wrap shall be applied by the VENDOR winding from the bottom to the top, not the opposite.

c. All kind of CS bare metal surfaces (including bolt holes, grease nipples and fasteners) shall be

protected using proper temporary rust preventative varnishes, oils, or grease. The use of barrier bags + desiccants or VCI bags inside the packages is common and recommended.

d. Exposed valve stems and spindles shall be protected by a rust preventive coating removable by a common solvent (such as mineral spirit, Varsol, Stoddard solvent, white spirit). Otherwise by a rust preventive oil + rust preventive VCI paper wrapping, such as Marvelpak-12 (or equivalent).

e. All control and actuated valves shall be supplied covered by strong UV/ wind resistant tarpaulins

or multiple wrapping sheets.

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f. Actuators shall be packaged and preserved howsoever to be waterproof and humidity

condensation proof during transportation and site storage. They shall also be protected against mechanical damage.

g. Automatic and/or motor operated valves that have electric and electronic components, shall be

packed, and preserved for indoor non-conditioned storage.

1.8

VENDOR PRESERVATION OF FASTENERS (BOLTING)

a. All fasteners (bolts, nuts, etc.) shall be packed and preserved according to manufacturer’s

instructions. Generally, they are packed in a closed waterproof package and are treated by a rust preventive oil. Barrier bags, desiccants, and different VCI products are also commonly used.

1.9

VENDOR PRESERVATION OF GASKETS

a. All kind of gaskets shall be packed and preserved according to manufacturer’s instructions for indoor storage. Generally, they are slightly greased and wrapped in grease resistant paper.

1.10 VENDOR PRESERVATION OF STATIC EQUIPMENT (VESSELS, HEAT EXCHANGERS,

SHOP PREFABRICATED TANKS)

a. Shop fabricated and field assembled equipment shall be always thoroughly cleaned, drained, and dried inside before mechanical completion (after all testing and inspection activities are done). Drying chapter below shall be followed. Equipment is generally completely dried out blowing hot air until high relative humidity is observed at the outlet. Dry out can be done simultaneously on different chambers of the equipment, as for example on both sides of a heat exchanger.

b. Equipment parts which could be potentially damaged during shipping and handling, such as tubes to header joints on an air-cooled heat exchanger fin tube panel, must be braced by appropriate steelwork and protected by transport timber on a needed basis.

c. Post weld heat-treated equipment should be labeled with a visible: “POSTWELD HEAT-

TREATED - DO NOT BURN OR WELD”.

d. All external carbon steel or low alloy steel surfaces prone to rust or corrode, which have no permanent coating (not painted) according to the painting specification, (including all temporary carbon steel blinds, covers, and bolts) shall be coated by a suitable temporary varnish or primer. Flange faces and all threaded/ beveled surfaces should be coated only by a preservation grease or soft (easily removable) varnish.

e. All external stainless steel or corrosion resistant alloy surfaces shall be protected with waterproof, chloride free, industrial wrappings, plastic sheets, or bags to prevent contact with seawater, salt, and contaminants during shipping and beyond, if necessary (including nozzles, weld overlay parts, flanges, nameplates, temporary blinds/ covers etc.).

f. For vessels having materials of 12 percent chrome content or greater (including austenitic stainless steels), temporary supports shall not be moisture retaining materials such as raw wood. Shields shall be provided to protect the vessel when wood supports are used.

g. All nozzles, vents, manholes, and connection openings, shall be closed or covered (blinded,

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plugged, capped), to prevent the entry of water, dirt, dust, sand, contaminants, etc., and to prevent mechanical damage, even when supplied inside a closed package. Special vessel openings shall be provided with suitable closures designed by the MANUFACTURER.

h. For the equipment to be preserved by pressurized nitrogen or desiccants, in addition to everything said before, all nozzles, vents, manholes, and connection openings, shall also be sealed closed or covered (blinded, plugged, capped) airtight, to prevent the entry of oxygen and moisture. All flanged connection nozzles not sealed by permanent blinds shall be sealed by temporary gaskets and 6mm (0.24 in.) minimum thickness, full diameter, temporary blinds, or covers, and temporary bolts. The blinds or covers shall be installed with at least 50% of the bolting (but not less than 4). For temporary covers on nozzles over 24-inch nominal diameter, adding external stiffening bars is an acceptable method to reinforce the cover plates. It is always useful to improve the sealing using a thin layer of non-acid grease on the temporary gaskets before closing. Temporary blinds, covers, and bolting are generally not suitable for hydrotest. They must be considered dummies and warning colors, tags, labels, or stickers should give the “DO NOT USE FOR HYDROTEST” warning.

i. All threaded holes, other than tell tale holes for testing, shall be suitably protected with steel bar plugs. Tell tale holes (such as reinforcing pad holes) shall be plugged with grease or sealant prior to shipment.

j. Door hinges and fasteners shall be preserved by proper grease or lubricant.

k. After cleaning and drying, the equipment to be preserved by nitrogen blanketing shall be purged and filled with dry nitrogen and pressurized to a value of 7.25psig (0.5barg) or as close as possible to 7.25psig (0.5barg), only if it is acceptable by design, otherwise the VENDOR shall use a lower pressure. The equipment shall be provided with pressure gauge to monitor nitrogen pressure. Suitable warning information shall be added. Nitrogen Purging and Pressurization chapter below shall be followed.

l. Atmospheric static equipment such as storage tanks or very thin pressure vessels may have such a low design pressure that pressurizing with nitrogen or airtight sealing is not recommended by the MANUFACTURER. They can be flushed and filled at best with nitrogen without pressurizing and the task repeated after a certain time, or an additional preservation task can be implemented to be more effective.

m. After cleaning and drying, the equipment which cannot be preserved by nitrogen blanketing may be preserved by desiccants placing silica gel pouches or bentonite clay bags inside. They are generally convenient when is not possible or practical to install a filling manifold and when the equipment size is very big. Desiccants can maintain relative humidity below 30% but they must be easily removable or replaceable from the equipment. Their amount shall be calculated for the preserved volume and for 24 months lifetime using at least 0.5Kg per cubic meter (or 0.5oz per cubic feet) of volume. Desiccant pouches and bags shall be always checked for damage before placing. Bentonite clay bags shall be always isolated by plastic sheets to avoid direct contact with the equipment and prevent contamination or corrosion. Suitable warning information for their later removal shall be placed outside the equipment near the filling opening. Nitrogen can be augmented by desiccants when nitrogen purging and pressurization cannot properly be done, or when nitrogen dew point is not particularly low (the VENDOR shall provide evidence, in any case).

n. After cleaning and drying, the equipment which cannot be preserved by nitrogen blanketing or by desiccants may be preserved by proper temporary soft (easily removable) varnishes,

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by preservation mineral/ VCI oils, or by VCI powders directly applied inside. The selected preservation product must be easily removable or fully compatible with the process. Proper ventilation and personal protection shall be always considered during application and eventual removal. For process areas with special cleaning requirements, some varnishes, oils, solvents, and powders could contaminate the process even if only in trace amounts. Preservation products shall be always approved by the CONTRACTOR and by the OWNER. The VENDOR shall always ask for approval before application.

o. Heat transfer surfaces shall not be generally coated by varnishes, oils, greases, powders, or something that can compromise the heat transfer capability and is difficult to remove after. This category includes heat exchanger fins, plates, coils, and tubes and boilers/ economizers tubes. After cleaning and drying, the tubes and coils should be preserved by dry nitrogen blanketing doing flushing purging and pressurizing to the value recommended by the MANUFACTURER.

p. Plate and frame heat exchangers shall be stored under covered shaded area within the MANUFATURER’S recommended temperature. MANUFACTURER shall display long term storage instructions on the outside of the equipment.

q. Furnace tubes shall be coated internally with a protective oil film and externally with a protective hard film. Proper amount of desiccant shall be placed inside each tube. The extremities shall then be plugged, sealed with petrolatum tape, and lapped back over the tube for a distance of 30 cm (12”).

r. Equipment parts, components, appurtenances supplied separately, which will be assembled at site, or spares, (such as removable internals, instruments, spare gaskets, spare bolting, etc.), shall be wrapped in polyethylene or other suitable wrapping and shipped in seaworthy sturdy wood boxes to avoid damage. The boxes shall be properly marked with purchase order number, material requisition number, main equipment item number, etc.

s. Protective and preservation tasks shall be subject to inspections and possible rejection. All costs associated with any rejection shall be charged to the MANUFACTURER/ VENDOR.

1.11 PROCEDURE FOR NITROGEN PURGING AND PRESSURIZATION

Internal surfaces of vessels and heat exchangers, or parts and components of different equipment, may be preserved by drying and nitrogen blanketing (nitrogen purging + filling + pressurization). Pressure vessels and exchangers made of stainless steel or with internal stainless cladding/weld overlay shall be preserved by nitrogen purging and pressurization to avoid chloride ingress.

1.11.1 Drying

a. Before nitrogen purging, the equipment shall be completely dried, especially if hydrotest was

carried out. The Manufacturer’s drying procedure can be followed but, as a rule of good practice, drying shall be carried out for a proper time, with dried compressed air or with a hot air stream (not exceeding 66°C (150°F) for low chrome steel or 49°C (120°F) for stainless steel).

b. The equipment shall be considered dry, when the exhaust air dew point is the same of the inlet air. For proper measurement, flow sections shall be comparable, and the instrument probe shall be placed well inside the flow, at the center of the flow sections. All nozzles, vents, and connection openings, other than the inlet and the outlet point, shall be previously blanked, plugged, or capped, to prevent the entry of dust, dirt, and moisturized air.

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c. It is not important if the dew point readings are high or low at this stage: important is that they are

reasonably the same (equalize). If they are not, the air inside is still more humid than the air streamed from outside (the replacement of the inner humid air is not complete yet), or worst, some liquid water is still evaporating from inside. Does not matter if temperature values and relative humidity values are not the same.

d. All circuits involved shall be considered separated. For example, for heat exchangers, shell side

and tube side.

e. Drying of equipment can also be done using electric heaters inside for many days (until dew point

check is ok).

f. Dried equipment or facilities shall not be re-exposed to water/ humidity after the drying process is

achieved.

1.11.2 Nitrogen Purging and Pressurization

a. Nitrogen used for preservation must be dry and free from oils. Dew points not higher than -10°C (14°F) is adequate for the project and required inside vessels and heat exchangers at the end of the purging and pressurization process. Using nitrogen with due point much lower than -10°C (14°F) is suggested. For example, industrial grade nitrogen with -60°C (-76°F) dew point, which is very common worldwide, can be used. Actual nitrogen dew point value inside the cylinders shall be always declared by the VENDOR and calculated during the inspections, to have a reference point before any other consideration.

b. One manometer with isolation valve and protected by rigid frame, shall be installed on each

chamber or side of the equipment, so that internal pressure readings and nitrogen filling can be done at the same time. The installation of the manometers to the equipment, shall be done by connections with separate isolation valves, to allow manometer replacements without de- pressurizing. One pressure gauge to monitor internal pressure, shall be installed in an easily accessible position considering both, transportation, and erected position. The pressure gauges shall be properly protected.

c. Adjacent to each manway, some well visible markings, warning tags or labels shall be provided:

“DANGER – VESSEL FILLED WITH NITROGEN UNDER PRESSURE – ASPHYXIATION HAZARD”. A robust system of labels shall be used (such as tie-on labels). Stick-on labels may be used if they can stand in good conditions for 18 months.

d. Purging shall be done with the idea that 100% of the air inside must be replaced by the nitrogen supplied. For equipment with a very large volume or with complex geometry, this can be waived on a case-by-case base, maintaining mandatory a correct drying of the equipment, a low nitrogen dew point and a reasonably comparable equipment dew point at the end of the process. Nitrogen Purging can be done in any of the following ways. The first is more suitable for heat exchanger-like internal geometry, the second for pressure vessel-like internal geometry:

1. Flushing Purging. More 20 minutes cycles of nitrogen flushing at 7.25psig (0.5barg)

maximum, with intervals (stops) of 15 minutes in between, until outlet nitrogen dew point is not higher than -10°C (14°F). Measuring the oxygen content is not practical and does not provide humidity monitoring. Dew point measurements are easier and more affordable.

2. Pressurizing and De-Pressurizing Purging. All nozzles, vents, and connection openings, other than the inlet point, shall be previously blanked, plugged, or capped, to prevent the entry of dirt, dust, sand, and moisturized air. 3 times cycles of nitrogen filling at 43.5psig (3barg) (only

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if it is acceptable by design, otherwise the VENDOR shall use a lower pressure and increase the number of cycles) followed by a holding time of 20 minutes and De-Pressurizations up to 1.45psig (0.1barg), until outlet nitrogen dew point is not higher than -10°C (14°F). Measuring the oxygen content is not practical and does not provide humidity monitoring. Dew point measurements are easier and more affordable.

e. Only if recommended by the VENDOR and acceptable by design: Nitrogen Purging can be

waived if vacuum is carried out before nitrogen filling and pressurization.

f. Nitrogen Pressurization before shipping shall be done by nitrogen filling to a value of 7.25psig

(0.5barg) or as close as possible to 7.25psig (0.5barg) (only if it is acceptable by design, otherwise the VENDOR shall use a lower pressure). Accepted nitrogen pressurization values during packing inspection and delivery date inspection shall be within 5.80psig (0.4barg) and 7.25psig (0.5barg), (the closer to the latter the better). Packing inspection shall be done at least a week before delivery date inspection, to be gauge-confident that hermetic sealing and no leakage is present before shipping. Any possible pressure changes or dropping due to daily and seasonal temperature variations shall be always considered and evaluated. Any leakage shall be identified and fixed in between.

g. Regarding Nitrogen Pressurization during shipping, backup nitrogen cylinders with safety labels are generally considered dangerous good and shall not be used for refilling purpose during shipping. Furthermore, during marine transportation there is always the possibility that the shipmaster will not authorize nitrogen-pressurized equipment, especially under deck, and decide for their complete depressurization. In such case the valve shall be immediately closed after depressurization, to still maintain a dry and nitrogen-rich atmosphere inside.

h. Accepted Nitrogen Pressurization values after arrival on site date and during all Site Storage, shall be not less than 2.90psig (0.2barg). Either if the equipment was depressurized during shipping, or if Nitrogen Pressurization is less than 2.90psig (0.2barg) after arrival on site date, re-pressurization shall be organized as soon as possible according to the refilling instructions provided in the VENDOR preservation procedure. If the re-pressurization is done within a couple of weeks after arrival on site, loss of pressure shall not be considered a noncompliance, since a dry and nitrogen- rich atmosphere is still inside.

1.12 VENDOR PRESERVATION OF ROTATING EQUIPMENTY, MACHINERIES, AND MOTORS

a. The equipment shall be possibly packed in a case, preserved inside barrier bags with

adequate quantity of desiccants, or inside VCI bags with VCI emitters properly positioned and indicated. Other preservation techniques can be evaluated. Large and middle sizes equipment and motors shall be packed and preserved for long term outdoor storage.

b. Soft materials (such as air cushions) or shock absorbers (such as vibration dampeners) shall be provided to the package or to the equipment for mechanical protection of instruments and sensitive components. They shall be included in the VENDOR standard offer when needed.

c. When shipping braces locking the shaft and the mechanical seals to prevent damage during

transportation and storage are foreseen, they shall be provided and indicated by the VENDOR. When periodic shaft rotation is required, eventual shaft locking devices or mechanical seal lock plates will have to be removed and replaced after.

d. Stuffing box packings may require removal from stuffing boxes during long term storage to avoid damage. In this case the housings and the packings shall be thoroughly cleaned, dried, and preserved with a rust preventive grease by the VENDOR. Tag shall be placed to

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indicate packing removal. Packings shall be bagged, or plastic wrapped and stored indoor. Same considerations for some types of mechanical seals and piston rings.

e. Any dirt, dust, oxidation, rust, oils, contaminants, mill scales, and slags shall be removed by

the VENDOR before packing and shipping. Insulated motor windings shall be vacuum cleaned. Liquid used for cleaning (such as solvents) or for hydro-test water (if not treated with soluble VCI) shall be completely drained and dried, prior to closing and sealing for shipment. The insulated motor windings and the external painted surfaces shall be cleaned with a lint free cloth, slightly moistened with a cleaning solvent.

f. Bearings, bearing housings, casings, any close chamber, motor collector rings

(commutators), and motor slip rings shall be thoroughly cleaned, dried, and preserved with a rust preventive oil layer, if dry nitrogen or other preservation techniques are not foreseen.

g. Equipment openings, shall be properly covered, plugged, capped, or blinded to prevent the entry of water, dirt, dust, contaminants, animals, and mechanical damages for long term at site. VCI paper can be used in between. If pressurized dry nitrogen is used inside, tight sealing and temporary gaskets are also required. Openings includes cables and conduit entry points in terminal boxes, threaded connections, vents, drains, and motor ventilation slots (mice or birds, can damage the motor winding insulation).

h. Filling of equipment cavities such as casings, housings, chambers, or crankcases with

preservation oils or service oils can be done only when allowed by the applicable safety and transportation regulations, since the equipment weight and center of gravity can increase of a considerable amount.

i. Equipment instruments and electric/ electronic devices shall be possibly supplied not

installed to the equipment when damages during handling and transportation is a possibility. They shall be packed separately to be stored Indoor.

j. To avoid motor windings insulation degradation, VENDOR’s packing and preservation shall

prevent condensation of humidity. For HV motors, built-in space heaters shall be foreseen, or supplied separately by the VENDOR and included in the standard offer.

k. Bare metal external machined surfaces (such as shafts, couplings, rods, cylinders, pistons, eccentrics, plungers, drive mechanisms, flange faces, chains) shall be protected by proper rust preventive varnishes, oils, and greases followed by VCI paper or petrolatum tape wrappings, or by rigid plastic covers supplied on purpose.

l. Any hinges, nipples, and fasteners shall be properly greased or lubricated.

m. Spares parts and special tools shall be stored indoor non-conditioned or indoor conditioned according to their types, in a separate, dedicated area. If any spare parts or special tools require specific storage conditions this should be marked on the outside of the package to ensure they do not accidentally get stored incorrectly.

n. Spares parts and special tools shall be packed and preserved to prevent damage,

deterioration and corrosion during transportation and warehouse very long-term storage. VENDOR shall provide detailed preservation tasks for at least 24 months extended site storage beyond the project site storage time.

o. Preservation interval/ period and refurbishment expiration date for all capital spares for

rotating equipment shall be specified.

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p. Regarding capital spares and complete spare items for warehouse storage, VENDOR shall

submit to CONTRACTOR the dedicated recommended storage and preservation procedures (e.g. for vertical pumps) including necessary inertization, vertical positions, shaft rotations, etc., together with tasks recurrence.

1.13 VENDOR PRESERVATION OF MECHANICAL AND DRY GAS SEALS

a. Usually, mechanical seals are not removed from the equipment after shop MRT (mechanical

running test or performance test). In this case, the VENDOR shall ensure proper equipment casing drain/ dry condition before ship to site, and proper seals lock during transportation.

b. Cartridge mechanical seals are designed to be easily and quickly removed or replaced without needing any special tool. For long term preservation, they are usually shop tested, shipped together with the main unit, removed at site to avoid damages, and re-installed before commissioning. If removed, they must be properly packed and preserved indoor at site and the VENDOR shall provide instructions to do so.

c. Mechanical packings, same as the cartridge mechanical seals, for long term preservation are

usually shop tested, shipped together with the main unit, removed at site from the stuffing boxes to avoid damages, and re-installed before commissioning. If removed, they must be properly packed and preserved at site and the VENDOR shall provide instructions to do so. Usually, the housings and the mechanical packings must be thoroughly cleaned, dried, and preserved with a rust preventive grease; tag must be placed to indicate removal; mechanical packings must be bagged or plastic wrapped, and stored indoor.

d. Dry gas seals are instead removed from the equipment after shop MRT (mechanical running test or performance test). The VENDOR shall provide instructions to pack and preserve them at site. Dry gas seals must be usually stored indoor (conditioned) with a temperature of 5 °C higher than dew point to avoid condensation of humidity but less than 50 °C and must not be exposed to UV radiation to prevent elastomers/ O-rings damages. Further, the shelf life of the dry gas polymers must be usually recorded and monitored.

1.14 VENDOR PRESERVATION OF TRANSFORMERS

a. As a general principle, the largest the size of the transformer, the more the VENDOR shall be

committed to preserve it outdoor.

b. For the transformers filled with insulating liquid (main tank filled with insulating liquid, except for

expansion space), VENDOR shall specify liquid level at ambient temperature.

c. For the transformers filled with insulating liquid and blanketed with nitrogen under pressure, or

filled with nitrogen under pressure, VENDOR shall specify nitrogen pressure at ambient temperature.

d. For large transformers shipped without oil and temporary pressurized with dry air, the VENDOR

shall specify dry air pressure and dew point.

e. Bushings shall be cleaned, and the metal portion coated with a heavy preservative grease.

f. Fasteners shall be greased or lubricated.

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1.15 VENDOR PRESERVATION OF ELECTRICAL MATERIAL: CABLES, CABLE TRAYS, JUNCTION BOXES, INPUT SWITCHES, LIGHTING FIXTURES, POLES, ELECTRICAL FITTING, ETC.

a. Preservation and export packing for electrical equipment and materials shall be in accordance with

the MANUFACTURERS/ VENDORS standards and project specifications.

b. The combination of VENDOR preservation and packing shall be suitable to guarantee the protection from damage, deterioration, and corrosion, during transportation and outdoor unsheltered site storage.

c. All openings shall be provided with steel caps or solid shank steel plugs compatible with the

metallurgy of the component being capped or plugged. Non-metallic plugs shall not be used, if IP rating or electrical conductivity are compromised.

1.16 VENDOR PRESERVATION OF STORAGE BATTERIES

a. VENDOR shall include the following information in the preservation procedure:

1. Shipping condition of batteries: dry and sealed, or wet.
2. Method to repair the seal of dry supplied batteries, if the seal is eventually broken during

handling and transportation.

3. Recommended inspections and intervals. Batteries should be charged every three months to restore cell voltage level. Battery banks should be assembled and placed on trickle charge if stored for over 6 months.

4. Charging procedure and charging rate (Volts per cell and specific gravity at 25°C (77°F)).

5. Battery safety guidance.

6. Requirements on air-conditioned storage of batteries at site prior to installation in Substations

& IESs.

b. VENDOR shall specify the right electrolyte level. Electrolyte shall be added as needed before

shipping.

c. Fasteners shall be greased or lubricated.

1.17 VENDOR PRESERVATION OF SWITCHGEAR, STARTERS, CONTROL EQUIPMENT

a. VENDOR shall specify the recommended storage place and conditions considering the site

environment.

b. VENDOR shall describe the provision (or absence, or separate supply) of insulating liquid

in the preservation procedure.

c. Desiccants capsules may be installed in the primary enclosure to maintain a dry atmosphere. Space heaters shall also be energized if installed in the equipment. Temporary heaters or light bulbs can be used for equipment without space heaters.

d. Small equipment such as relays, pushbuttons, and circuit breakers, shall be sealed in a

proper preservative paper and boxed.

e. For switchgears shipped as a complete assembly, the relays shall be left in their cases sealed by an easily removable tape. Instead, for withdrawable switchgears, the relays shall be shipped to the jobsite already mounted in the switchgear panels.

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f. VENDOR shall recommend monitoring and inspection required at site (like checking of oil level / condition, measurement of insulation resistance) with intervals. Insulation resistance on a sampling of close/ trip coils shall be performed every six weeks, to evaluate effectiveness of humidity control. Appropriate actions taken if levels decrease.

g. Control equipment components containing batteries, (except standard cells) corrosive solutions, or items with short shelf life that could damage the parent equipment, shall be removed. These items shall be stored in suitable containers to prevent leakage, corrosion, or damage to other equipment.

h. Door hinges, grease nipples and fasteners shall be greased or lubricated.

1.18 VENDOR PRESERVATION OF

INSTRUMENTATION, ELECTRONIC EQUIPMENT, ELECTRIC/ ELECTRONIC CONTROL PANELS AND CABINETS (VSD, VFD, PCS, PLC, ETC.), TRANSMITTERS, INDICATORS, ANALYSERS

a. Electronic modules and spares which are sensitive to static charges shall be provided with

adequate antistatic protection and carry signs to prevent mishandling.

b. Adequate protection shall be provided to the pin connectors of electronic modules to prevent potential damages during preservation and handling: Open the doors and install porous bags of VCI or VCI emitters; Close doors and seal with petroleum jelly. Apply jelly to door seal before closing to make a more efficient seal; All openings such as conduit connections shall be capped, plugged, or sealed with waterproof, cloth-backed tape.

c. VENDOR shall provide wood (or similar strong and safe) covers over glass fronts.

d. Air cushion film products or other vibration dampener system shall be provided to the package to prevent any mechanical (including vibrational) damage to instruments and sensitive components.

e. All catalytic or electrochemical-type sensors shall be fully sealed and have valid expiration dates. The sensors shall not be installed. To be installed prior to commissioning or feed-in (not yet during pre-commissioning).

f. Electronic instruments shall be stored in a dry location with a temperature of 5 °C higher than dew point to avoid condensation of humidity, but less than 50 °C to avoid damage.

g. A moisture indicator or sticker shall be provided in the panel as a reference during periodic

checks.

h. The wooden covers mounted on the instrument flanges by the producer protect the linings on the flanges during transportation and storage. These covers shall not be removed until immediately before the device is installed in the pipe.

i. Thermowells producers shall place a note in their preservation procedure, reminding that when thermowells are installed and the sensor is not inserted for a long period of time, it is recommended that the entry point of the thermowell be plugged with a SS plug to avoid water buildup inside the well (applicable to all open flanges).

j. Equipment suitable only for indoor conditioned site storage shall be preserved by the

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VENDOR according to MANUFACTURER’S recommendations. The use of desiccants and VCI emitters inside the packages or inside the panels shall be considered for transportation.

k. Equipment which are going to be stored indoor non-conditioned at site shall be preserved by the VENDOR according to MANUFACTURER’s recommendations, but together with desiccants and VCI emitters inside the packages or inside the panels, barrier bags or panel sealing tape shall be also considered for transportation and site storage.

1.19 VENDOR PRESERVATION OF MISCELLANEOUS MATERIALS (PAINTING, CHEMICAL,

INSULATION, REFRACTORY, WELDING)

a. The combination of VENDOR preservation and package shall guarantee the protection from

damage, deterioration, and degradation, during transportation and site storage, up to the time required in the supply specification, taking into due consideration the climatic conditions at the point of destination.

b. The manufacturer’s recommendations shall be observed. The VENDOR preservation procedure

shall always indicate the expiration date (guaranteed shelf life) and the suggested preservation for each material supplied.

c. The guaranteed shelf life shall be the farthest as possible from the date of delivery to include the date of application. If the shelf life is too close, the placement of the PO and the date of delivery shall be postponed.

d. Pre-stressed brick/ refractory lining without a protective sealing wrapping or plastic bag, should

stand above 0 °C to avoid excessive stresses in the lining due to freezing of humidity condensation and rain.

1.20 VENDOR PRESERVATION OF FIRE FIGHTING AND SAFETY EQUIPMENT (HYDRANT, MONITORS, SPRINKLERS, SAFETY SHOWERS, EXTINGUISHERS, CLEAN AGENT BOTTLES AND NOZZLES)

a. The combination of VENDOR preservation and package shall guarantee the protection from

damage, deterioration, and degradation, during transportation and site storage, up to the time required in the supply specification, taking into due consideration the climatic conditions at the point of destination.

b. Sprinkler and deluge valves shall be protected the same as valves.

c. Expiry date of fire extinguishers charge provided by VENDOR shall be checked ensuring that it is

at least 24 months after delivery date.

d. Pressure of clean agent bottles shall be periodically checked, and bottle shall be repaired/

replaced by VENDOR if pressure starts getting low.

1.21 VENDOR PRESERVATION OF SPARE PARTS AND SPECIAL TOOLS

The preservation and management of Spare Parts and Special Tools shall be organized by the VENDOR considering the following requirements. Erection and commissioning spare parts shall also be considered and shall be packed in separate boxes inside the main package.

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1.21.1 INFORMATION TO BE VISIBLE OUT OF THE PACKAGE

a. Spare Part manufacturer information:

1. Company Name
2. Phone
3. Fax
4. Email
5. Address

b. Spare Part identification and technical details:

1. Manufacturer’s Part No.
2. Manufacturer’s Model No. Serial No. or Catalogue No.
3. Manufacturer’s Drawing No. or Item No.
4. Contractor and Company Part No.
5. Contractor and Company Tag No.
6. Contractor and Company Drawing No.
7. Description with Size, Rating, Color Code etc.
8. Application and Use.

1.21.2 INFORMATION TO BE PROVIDED INSIDE THE PACKAGE

a. Relevant IOM Manual.

b. TDS and MSDS.

c. Manufacturing Certificates.

1.21.3 BASIC PACKAGING AND PRESERVATION REQUIREMENTS

a. Spares Parts and Special Tools shall be preserved and packaged in such a manner as to prevent

damage, deterioration and corrosion during transport and warehouse long-term storage.

b. Spares Parts and Special Tools shall be packaged and cushioned with proper stowage to prevent

damage from shock, vibration, and rough handling.

c. Non locally supplied Spares Parts and Special Tools shall have an export package (seaworthy if

by sea).

d. Spares Parts and Special Tools require longer storage before being used. VENDOR shall provide detailed instructions for 24 months extended site storage beyond the ordinary site storage time considered by the project.

e. Spares Parts and Special Tools shall be stored indoor non-conditioned or indoor conditioned

according to type and kind.

f. Spares Parts and Special Tools shall be stored in a separate, dedicated area.

g. The VENDOR shall provide a Spares Parts and Special Tools site preservation plan with detailed

schedule for preservation tasks and preservation consumables changeover.

h. Spare Parts shall be new and identical to the parts supplied for the original equipment.

i. Spare parts for two years operation shall be individually tagged and shall be covered with a

suitable preservative and wrapped with grease-proof paper and shall be packed inside the main package.

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1.22 VENDOR PRESERVATION CARD TEMPLATE

To be completed by the VENDOR

TAG No.

e.g., U-X-102

Equipment Description

e.g., RECIPROCATING COMPRESSOR

Vendor Name

PO No.

MR Code

XXXX

XXXX

XXXX

1.22.1 PRESERVATION ACTIVITIES DURING SITE STORAGE (when the material is in the

original package)

a. Preservation Tasks to be done immediately after Arrival on Site (for each item). …………

b. Number of Months the material can be stored without any Preservation Tasks or Inspection (for

each item).

………….

c. Preservation Tasks to be done every 2 Weeks after Arrival on Site (for each item). …………

d. Preservation Tasks to be done every 1 Month after Arrival on Site (for each item). …………

e. Preservation Tasks to be done every 3 Months after Arrival on Site (for each item). …………

f. Preservation Tasks to be done every 6 Months after Arrival on Site (for each item). …………

1.22.2 PRESERVATION ACTIVITIES AFTER INSTALLATION (when the material is Installed)

a. Preservation Tasks to be done every 1 Month after Installation (for each item). ………….

b. Preservation Tasks to be done every 3 Months after Installation (for each item). ………….

c. Preservation Tasks to be done every 6 Months after Installation (for each item). …………

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1.22.3 PRESERVATION CHECKLIST

Storage Class:

Outdoor Unsheltered

☐

Outdoor Sheltered

                                      ☐

Indoor Non-Conditioned

Indoor Heated Area

☐

☐

Indoor Conditioned ☐

Package Types:

Closed or Covered Containers

Cases or Boxes

☐

           ☐

Crates

                                      ☐

Pallets or Platforms or Skids

Loose

Preservation Products: Nitrogen

Dry air

Vapor Corrosion Inhibitors

Rust Preventive Varnish or Oil or Grease

Barrier Bags or Vacuum Bags

Plastic Bags or Plastic Film Wrappings

Desiccants

Piping End/ Equipment Opening Covers

Piping Bevel Protectors

Special Requirements: Package Internal Waterproof Liners

Package Rainproof, UV, and Windproof Covers

Space Heaters Connected

☐

☐

☐

☐

☐

☐

☐

☐

☐

☐

☐

☐

☐

☐

Periodic Shaft Rotations ☐

Humidity Indicators ☐

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Project: Q-32976 - Tecnmont SKIKDA Folder: Reference Documents