1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

PRESSURE RELIEF VALVE

NOTES 1, 9, 15,19

PRESSURE RELIEF VALVE TO ATMOSPHERE

NOTES 1, 9, 15, 19

SINGLE BLOCK VALVING

DOUBLE BLOCK VALVING

0B

NOTES 3, 5,16,18

NOTES 3, 5,16,18

NOTES 3, 5,16,18

NOTES 3, 5, 16, 18

TO FLARE HEADER

TO FLARE HEADER

PSV

V

ILO

FB

PSV

V

ILO

FB

NOTE 13

TO FLARE HEADER

ILO

FB

ILO

FB

NOTE 13

TO FLARE HEADER

PSV

V

PSV

V

V

NOTE 10

SPISPI

V

NOTE 10

SPISPI

ILO

FB

ILC

FB

V

ILO

FB

NOTE 10

SPI SPISPI

V

V

V

ILC

FB

NOTE 10

SPISPI SPI

ILO

FB

ILC

FB

B3

600MM MIN

NOTE 2

TO FLARE HEADER

B3

V

600MM MIN.

NOTE 2

TO FLARE HEADER

S R

NOTE 17

FROM PROTECTED EQUIPMENT / PROCESS LINE

WITH SPARE NORMAL CASE

WITHOUT SPARE PARTICULAR CASE

ATM TO

SAFE LOCATION

ATM TO ATM TO SAFE LOCATION SAFE LOCATION

ATM TO

SAFE LOCATION

NOTES 3, 5,16,18

NOTES 3, 5,16,18

NOTES 3, 5,16,18

PSV

PSV

NOTE 6

PSV

NOTE 6

NOTE 6

NOTE 8

NOTE 6

NOTE 8

V

V

NOTE 10 SPISPI

ILO

FB

ILC

FB

0B

V

LO

FB

NOTE 4

NOTE 4

TYPICAL ARRANGEMENT FOR COLD INSULATED SYSTEMS RELIEF VALVE

DEPRESSURIZATION VALVE NOTES 1, 9, 19

NON INSULATED PART

.

I

N M M M 0 0 9

0B

NON INSULATED

PART

I

N M M M 0 0 0 1

N

C

I

N M M M 0 0 9

1000MM MIN

NON INSULATED

PART

N

C

I

N M M M 0 0 0 1

I

N M M M 0 0 9

N

C

I

N M M M 0 0 9

0B

NOTE 7

LO FB

BDV

RO

MIN

IF REQUIRED FOR

HP/LP OR HP AND LOW TEMP.

NOTE 11

HOLD 1

B4

FO

D

600MM MIN

NOTE 2

IF REQUIRED FOR LOW TEMPERATURE

LO FB

TO FLARE HEADER

HOLDS :

1. SUPPLY AND INSTALLATION OF PIPING MATERIALS PENDING COR 4C IMPLEMENTATION.

COLD INSULATED EQUIPMENT

COLD INSULATED LINE

COLD INSULATED LINE

COLD INSULATED LINE

THERMAL EXPANSION RELIEF VALVE

NOTES 1, 9, 15,19

TSV DISCHARGING IN DEDICATED SYSTEM

TSV DISCHARGING IN SAME SYSTEM

TSV DISCHARGING TO FLARE

NOTES 16,18

TSV

V

LO

FB

NOTES 16,18

TSV

V

LO

FB

NOTES 16,18

TSV

V

LO

FB

TO FLARE HEADER

V

V

V

LO

FB

LO

FB

LO

FB

PROCESS LINE

PROCESS LINE / RELIEF HEADER

PROCESS LINE

PROCESS LINE

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

GENERAL NOTES :

A. PIPING VENTS, DRAINS AND SAMPLE POINTS ARE 3/4” MINIMUM. FOR VENTS

AND DRAINS, ANY HORIZONTAL VALVE ON THE THE RIGHT HAND SIDE OF THE VERTICAL PIPELINE IS TO BE READ AS A DRAIN VALVE AND ANY HORIZONTAL VALVE ON THE LEFT HAND SIDE OF THE VERTICAL PIPELINE IS TO BE READ AS A VENT VALVE CONNECTION.

A

B. ALL VALVE CONNECTIONS TO ATMOSPHERE IN PROCESS SERVICE WILL BE PLUGGED

OR BLIND FLANGE.

C. THE RESPONSIBILITY OF ADMINISTRATIVE CONTROLS FOR VALVES NOTED CSO, CSC,

LO OR LC IS ACCEPTED BY OWNER. APPROVAL IS REQUIRED BY OWNER FOR ALL SUCH MEASURES.

NOTES :

VALVE TYPE IN ACCORDANCE WITH PIPING CLASS. DISTANCE 600MM MIN IS ONLY REQUIRED IN CASE OF COLD DEPRESSURIZATION TO AVOID ICING OF THE BLOCK VALVE OR BDV.

0B

SPARING OF RELIEF VALVES TO BE ON CASE BY CASE BASIS, BASED ON PROCESS AVAILABILITY. REQUIREMENT FOR MANUAL DEPRESSURIZATION TO BE DETERMINED ON A CASE BY CASE BASIS. DISTANCE BETWEEN RELIEF VALVE AND REDUCER TO BE MINIMIZED. DRIP HOLE AT LOW POINT : DIAMETER = 10 MM FOR NON-HYDROCARBON SERVICE. SINGLE OR DOUBLE BLOCK AND BLEED AS REQUIRED. REFER TO ISOLATION PHILOSOPHY N° : RLNG-000-PR-PP-0003. PIPING CLASS BREAK CAN BE DIFFERENT ACCORDING TO PROCESS CONDITIONS UPSTREAM AND DOWNSTREAM RELIEF VALVE. FOR MORE INFORMATION. REFER TO ISOLATION PHILOSOPHY N° : RLNG-000-PR-PP-0003. FOR PSV, THE SPECIAL PIPING ITEM IS A SWITCHING DEVICE WITH MECHANICAL INTERLOCKING SYSTEM TO ENSURE A PSV IS CONTINUOUSLY ONLINE DURING CHANGE OVER OPERATION.

0B

IT SHOULD BE THAT ALL HAZARDOUS SERVICES (INCLUDING HYDROCARBONS, EXCLUDING CHEMICAL) VENT TO FLARE AND DRAIN TO A CLOSED DRAIN SYSTEM. ALL DRAINS SHALL BE HARDPIPED TO FLARE HEADER OR DRAIN HEADER (TYPE 1) REFER TO LEGENDS SHEET P&ID N° : RLNG-000-PR-PID-0013. DELETED.

ALL CLOSED PRESSURE RELIEF VALVE DISCHARGE LEADS SHALL BE FREE DRAINING FROM THE PRESSURE RELIEF VALVE TO THE TOP OF THE DISCHARGE HEADER. EACH LEAD IS TO BE CHECKED FOR A DOWNWARD SLOPE AFTER CONSTRUCTION.IMPULSE LINE FOR PILOT OPERATED VALVES SHALL BE FREE DRAINING.

DELETED.

FOR UNSPARED PRESSURE RELIEVING DEVICES, WHEN AN INLET STOP VALVE IS PROVIDED BETWEEN A VESSEL AND ITS PRESSURE RELIEVING DEVICE OR WHEN A DISCHARGE STOP VALVE IS PROVIDED BETWEEN A PRESSURE RELIEVING DEVICE AND A COMMON DISCHARGE HEADER,THE STOP VALVE SHALL BE ARRANGED SO THAT IT CAN BE LOCKED. WRITTEN ADMINISTRATIVE PROCEDURES SHALL ENSURE THAT THE STOP VALVE WILL NOT BE CLOSED WHILE THE VESSEL IS IN OPERATION EXCEPT BY AN AUTHORIZED PERSON WHO SHALL REMAIN STATIONED THERE DURING THE VESSEL’S OPERATION AND WHO SHALL AGAIN LOCK THE STOP VALVE OPEN BEFORE LEAVING. UNDER NO CONDITION SHALL A DISCHARGE STOP VALVE BE CLOSED, WHILE THE VESSEL IS IN OPERATION, BEFORE THE INLET STOP VALVE IS CLOSED (REFER TO ASME PRESSURE VESSEL CODE SECTION VIII APPENDIX M). BLOCK VALVES IN RELIEF VALVE INLET AND DISCHARGE LINES MUST HAVE STEMS IN HORIZONTAL POSITION IF GATE VALVES ARE USED. THE SAME IS VALID FOR ANY VALVE IN THE PIPING BETWEEN THE RELIEF VALVE AND THE VESSEL IT IS PROTECTING. REMOVABLE SPOOL INSTALLED WHEN PSV IS INSTALLED DIRECTLY ON THE EQUIPMENT. WHEN PSV IS INSTALLED ON A PROCESS LINE, NO REMOVABLE SPOOL IS REQUIRED. PSV GOVERNING CASE INDICATION.

REQUIREMENT FOR CAVITY VENTING ON BLOCK VALVES TO BE CONSIDERED AS PER ISOLATION PHILOSOPHY RLNG-000-PR-PP-003.

B

C

D

E

F

G

0B

0A

0

12-Feb-2025

25-Oct-2024

05-Jul-2024

REV

DATE

SCALE:

DRAWN:

IFD - Issued for Design

VCH

AK/SB/JGO

ADE

IFH - ISSUED FOR HAZOP

VCH

AK/SB/JGO

ADE

ICR - ISSUED FOR CLIENT REVIEW

VCH

AK/SB/JGO

ADE

DESCRIPTION

CHKD:

DRAWN

CHKD

APPRD

APPRD:

NONE

VCH

AK/SB/JGO

ADE

H

CONTRACTOR

PROJECT TITLE

RUWAIS LNG PROJECT

DRAWING TITLE

PIPING & INSTRUMENTATION DIAGRAM UNIT 000 General TYPICAL DETAILS FOR PIPING ARRANGEMENT 2

UNIT:

000 CONTR. PROJ. No.

PLANT:

RUWAIS

215122C

DOC. CLASS:

1.5 CONT. DWG. No.:

DOC. CAT:

2

215122C-000-PID-0090-0012

ADNOC GAS AGREEMENT No.

4700022871

OC DWG. No.:

ADNOC GAS PROJ. No.

22-146

ADNOC GAS DWG. No. RLNG-000-PR-PID-0012

SHEET REV. 0B 01/01 SHEET SIZE : A1

I

J

i

.

I

d p B 0 _ 2 1 0 0

D P R P

0 0 0

G N L R

: .

O N D A C

NOTE 4

S R

NOTE 17

FROM PROTECTED EQUIPMENT / PROCESS LINE

I

N M M M 0 0 0 1

N C

MIN.

A

B

C

D

E

F

G

H

I

J

R O F Y L P P A L L A H S 6 4 1

2 2 N O C

:

O N T N E M E E R G A

/

T C A R T N O C F O S M R E T E H T

.

I

Y T R A P D R H T Y N A O T T N E M U C O D S H T F O E R U S O L C S D Y N A

I

I

Project: Q-32859 - NMDC - Ruwais Folder: RFQ Files