TYPICAL INSTRUMENT REPRESENTATION ON P & ID
INSTRUMENT TYPICALS
GENERAL NOTES:
PLANT LOCATION SKIKDA, ALGERIA
FLOW
FLOW TRANSMITTER FLOW ELEMENT TO BE REPRESENTED ONLY GRAPHICALLY.
ON P&ID
FT XXX
1/2”
1/2”
FE XXX
PRESSURE TAP
PRESSURE INSTRUMENT ON PIPING
- SINGLE OR DOUBLE BLOCK ISOLATION AS APPLICABLE BASED ON THE SERVICE
PP XXX
3/4”
-
SINGLE OR DOUBLE BLOCK ISOLATION AS APPLICABLE BASED ON THE SERVICE
TEMP.
or PT
PG XXX
3/4”
- SINGLE OR DOUBLE BLOCK ISOLATION AS APPLICABLE BASED ON THE SERVICE
PRESSURE INSTRUMENT
(DIAPHRAGM SEAL WITH CAPILLARY
TYPE) ON PIPING
or PT
PG XXX
3”
I
T N E S N O C N E T T R W R O R P T U O H T W
I
I
,
E S O P R U P Y N A R O F S R E H T O Y B D E S U E B T O N N A C D N A Y T R E P O R P S T N O M N C E T S
I
’
PRESS.
DIFFERENTIAL PRESSURE INSTRUMENT ON PIPING
PRESSURE INSTRUMENT ON EQUIPMENT
DIFFERENTIAL PRESSURE INSTRUMENT (DIAPHRAGM SEAL WITH CAPILLARY TYPE) ON PIPING
TEMP.
TEMPERATURE INDICATION
LEVEL INSTRUMENT WITHOUT STANDPIPE DIAPHRAGM
(SEAL TYPE)
I
T N E M U C O D S H T
I
LEVEL
LEVEL INSTRUMENT WITHOUT STANDPIPE
LEVEL GAUGE WITHOUT STANDPIPE
(MAGNETIC TYPE)
- 1” GLOBE ISOLATION VALVE FOR REACTOR DIFFERENTIAL PRESSURE INSTRUMENT.
or PDT
PDG XXX
3/4”
3/4”
-
3” FOR DIAPHRAGM SEAL PRESSURE INSTRUMENT.
2”
or PT
PG XXX
or PDT
PDG XXX
3”
3”
TI XXX
TT XXX
3”
3”
2”
2”
LT XXX
LT XXX
XXX
XXX : DISP.:EXTERNAL DISPLACER DP :DP CELL
2”
2”
LG XXX
MAG
TEMPERATURE INDICATION
DIFFERENT TYPES TO BE SPECIFIED BY LETTER
TEMPERATURE CONTROL
NOTE : FOR TT INVOLVED IN
CRITICAL CONTROL LOOP, A SEPARATE T/C IN A SEPARATE TW SHALL BE PROVIDED FOR MONITORING
*1) DUPLEX TC TO BE PROVIDED
ESD INPUT
*1) DUPLEX TC TO BE PROVIDED
SKIN THERMOCOUPLES ON EQUIPMENT
ON P&ID
TI XXX
K
TT XXX
TIC XXX
TT XXX
*1)
I
TT XXX
*1)
e.g.
TI XXX
TT XXX
TI XXX
TXT XXX
TXI XXX
SKIN
CONTROL VALVE
CONTROL VALVE WITH POSITION TRANSMITER
SIMPLIFIED REPRESENTATION OF ESD LOGICS WITH SWITCH INITIATOR
xIC
xV
xZI
xZT
xV
xIC
xA**
xS**
I
** = HH OR LL
NOTES:
-
OPEN /CLOSE LIMIT SWITCHES SHALL ALWAYS BE SHOWN ON P&ID’s FOR CONTROL VALVES.
-
IF ANY, TO BE SPECIFIED CASE BY CASE ON P&ID’s.
CONTROL VALVE WITH SOLENOID VALVE
I NNN
xXY
S
IA
xIC
1
2
VENT
xV
FC
xZLC
xZI
NNN
xZT
zsс
1
1
I NNN
xXY
S
xZLO
xZI
NNN
1
2
xZT
xZSO
1
1
NNN = INTERLOCK
VENT
FO
xV
1
IA
xIC
INSTRUMENT VALVE DESIGNATE
MONEL (ALLOY 400) TRIM GAUGE VALVES MONEL (ALLOY 400) TRIM CARBON STEEL GAUGE VALVES IN COMPLIANCE WITH NACE MR0103 MONEL (ALLOY 400) TRIM CARBON STEEL GAUGE VALVES IN COMPLIANCE WITH NACE MR0175 OMIT GAUGE VALVES TYPE 316 STAINLESS STEEL TRI9M GAUGE VALVES TYPE 316 STAINLESS STEEL GAUGE VALVES IN COMPLIANCE WITH NACE MR0103 MAGNETIC LEVEL GAUGE - WHEN INDICATED, ACTUAL LENGTH SHOWN GAUGE GLASS REFLEX TYPE - WHEN INDICATED, MINIMUM VISIBLE LENGTH SHOWN GAUGE GLASS REFLEX TYPE - WHEN INDICATED, MINIMUM VISIBLE LENGTH SHOWN - LOW TEMPERATURE GAUGE GLASS TRANSPARENT TYPE - WHEN INDICATED, MINIMUM VISIBLE LENGTH SHOWN GAUGE GLASS TRANSPARENT TYPE - WHEN INDICATED, MINIMUM VISIBLE LENGTH SHOWN - GRAFOIL GAUGE GLASS TRANSPARENT TYPE - WHEN INDICATE, MINIMUM VISIBLE LENGTH SHOWN - KEL-F GAUGE GLASS TRANSPARENT TYPE - WHEN INDICATED, MINIMUM VISIBLE LENGTH SHOWN - LOW TEMPERATURE TIME DELAY CONTROL AND MONITORING SYSTEM RADAR CAPACITANCE TYPE MAGNETIC MAIN CONTROL ROOM RUPTURE DISC INTERLOCK LOCKED OPEN INTERLOCK LOCKED CLOSED DISTRIBUTED CONTROL SYSTEM ON/OFF VALVE EMERGENCY ISOLATION VALVE SOLENOID VALVE PRESSURE RELIEF VALVE MOTOR OPERATED VALVE DIFFERENTIAL PRESSURE EMERGENCY SHUTDOWN FAIL CLOSED FEED FORWARD SIGNAL FAIL LOCKED FAIL LAST, DRIFT TO CLOSED FAIL LAST, DRIFT TO OPEN FAIL OPEN HAND VALVE HAND SWITCH ONE OUT OF TWO VOTING TWO OUT OF TWO VOTING TWO OUT OF THREE VOTING
1
1
MGV MNGV MN5GV OGV XGV XNGV LG-M LG-R LG-RLT LG-T LG-TG LG-TK LG-TLT TD CMS RAD CAP MGT MCR PSE ILO ILC DCS XV UV SOV PSV MOV DP ESD FC FF FL FLC FLO FO HV HS 1oo2 2oo2 2oo3
HOLDS:
EQUIPMENT LIST
1
0
IFH–Issued for HAZOP
25/Jun/2024
IFA-Issued for Approval
K.Jeetu
K.Jeetu
A.Lo Verso/G.Acerbi/ E.Magadeev/ H.Aljarrah
A.Lo Verso/G.Acerbi/ E.Magadeev/ H.Aljarrah
A.Lo Verso
A.Lo Verso
Realisation en EPC d'installations de production de
LINEAR-ALKYL-BENZENE <
PIPING & INSTRUMENTATION DIAGRAM GENERAL NOTES, SYMBOL AND LEGEND PIPING SYMBOLS 6
4439-VZ-DM-0000-0006
A1
Echelle :
1/1
1 of 1
Rev :
1
11/Oct/2024
Project: Q-32976 - Tecnmont SKIKDA Folder: Reference Documents