CLASS 31011

DEP 31.38.01.12- Gen Class 31011, rev. F page 1

Design limits Branch connections 90 degrees

Temperature (°C) Branch Size

0 50 100 150 200 250 300 350 400 Run 15 20 25 40 50 80 100 150 200 250 300 350 400 450 500 600 750 900 1050 1200
Pressure (Bar ga) size
DN 15-1200 50.5 50.1 46.6 45.1 43.8 41.9 39.8 37.6 32.6 1200 C C C C E E E E E E E E E E E B B B B A
1050 C C C C E E E E E E E E E E E B B B A
900 C C C C E E E E E E E E E B B B B A
750 C C C C E E E E E E E E B B B B A
Notes 600 C C C C E E E E E E B B B B B A
- Design limits acc. to ASME B16.5 flange rating mat. grp 1.1 and ASME B31.3 allowable internal pressure 500 C C C C E E E E E E B B B B A
- For bending of pipe see DEP 31.38.01.31-Gen. 450 C C C C E E E E E B B B B A
- For basis of design see DEP 31.38.01.10-Gen. 400 C C C C E E E E E B B B A
- Piping class design meets full vacuum at ambient temperature condition 350 C C C C E E E E B B B A
- Piston type check valves (DN 15-40) for horizontal mounting only 300 C C C C E E E B B B A
- The use of triple eccentric butterfly valves and dual plate check valves is considered most economical. 250 C C C C E E B B B A
Use gate valves and swing check valves only where fouling and abrasion are negatively affecting their 200 C C C C E E B B A
functionality 150 C C C C E B B A
100 C C C C D D A
80 C C C C D A
Table of schedules 50 C C B B A
40 C B B A
DN Schedule 25 B B A
15 80 20 B A
20 80 15 A
25 80
40 80
50 40
80 40 Code Explanation of characters
100 40 A Equal tee
150 40 B Reducing tee
200 30 C Branch fitting
250 30 D Pipe to pipe
300 30 E Branch outlet
350 30
400 30
450 30
500 30
600 30
750 30
900 40
1050 20.6
1200 23.8

Carbon steel Plant

Class no. 31011 Consignee
ASME rating CLASS 300 Engineered by
Corrosion allowance 1 mm Principal
Revision letter F Contr. job no.
Revision date 12/2010 Project no.
 DEP 31.38.01.12- Gen Class 31011, rev. F page 2

COMPONENT MATERIAL DESCRIPTION

(For full material description see relevant MESC buying description.)

Pipe Valves

PIPE Pipe DN 15-600 ASTM A106-B BUTF Butterfly valve triple of flgd DN 200-1200 Body: ASTM A216-WCB/WCC
PIPE Pipe DN 400-1200 ASTM A672-C65 cl22 Trim: CS, Duplex, Stellite
CHDF Check valve dual plate flgd DN 300-1200 Body: ASTM A216-WCB/WCC
Flanges Trim: AISI 410
CHVF Check valve flgd DN 15-600 Body: ASTM A105/A216-WCB/WCC
BLFL Blind flange DN 15-1200 ASTM A105 Trim: AISI 410 , Stellite
LJFL Lap joint flange --- ASTM A105 GAVF Gate valve flgd DN 15-600 Body: ASTM A105/A216-WCB/WCC
SBFL Spectacle blind DN 15-350 ASTM A516-60/65/70 Trim: AISI 410 , Stellite
SPFL Spade DN 15-600 ASTM A516-60/65/70 GLVF Globe valve flgd DN 15-200 Body: ASTM A105/A216-WCB/WCC
SPFL Spade DN 750-1200 ASTM A516-70 Trim: AISI 410 , Stellite
SPRT Spacer ring DN 15-1200 ASTM A516-60/65/70
WNFL Welding neck flange DN 15-1200 ASTM A105 Instruments

Fittings TWND Thermowell flgd DN 40 DN 40-40 AISI 316

TWNL Thermowell flgd DN 40 L=255 mm --- AISI 316
CAPB Cap bw DN 15-1200 ASTM A234-WPB TWNS Thermowell flgd DN 40 L=230 mm --- AISI 316
E45B Elbow 45 deg LR bw DN 15-600 ASTM A234-WPB
E45B Elbow 45 deg LR bw DN 750-1200 ASTM A234-WPBW Miscellaneous
E90B Elbow 90 deg LR bw DN 15-600 ASTM A234-WPB
E90B Elbow 90 deg LR bw DN 750-1200 ASTM A234-WPBW GKMG Gasket camprofile DN 750-1200 AISI 316, Graphite
TEEB Tee equal bw DN 15-600 ASTM A234-WPB SS centring ring
TEEB Tee equal bw DN 750-1200 ASTM A234-WPBW GKSW Gasket spiral wound DN 15-600 AISI 316, Graphite
CS centring-/SS inner ring
Reducing fittings MTRR Meterrun DN 15-40 AISI 316/ASTM A105 end flanges
ORFS Orifice flange set DN 50-600 ASTM A105
BNIF Branch fitting flgd DN 15-40 ASTM A105 ST1B Strainer Y-type (1 mm ca) DN 50-400 Sieve: AISI 316
BNIP Branch fitting plain DN 15-40 ASTM A105 STBT Studbolt with nuts --- ASTM A193-B7/A194-2H
BROB Branch outlet bw DN 150-1200 ASTM A105
RECB Reducer concentric bw DN 20-600 ASTM A234-WPB
RECB Reducer concentric bw DN 750-1200 ASTM A234-WPBW
REEB Reducer eccentric bw DN 20-600 ASTM A234-WPB
REEB Reducer eccentric bw DN 750-1200 ASTM A234-WPBW
TERB Tee reducing bw DN 20-600 ASTM A234-WPB
TERB Tee reducing bw DN 750-1200 ASTM A234-WPBW
 DEP 31.38.01.12- Gen Class 31011, rev. F page 3

PIPING COMPONENTS

Nominal pipe size

15 20 25 40 50 80 100 150 200 250 300 350 400 450 500 600 750 900 1050 1200
Item description MESC

Pipe
Pipe 743005 0181 0281 0381 0581 0691 1031 1491 2111 2411 2831 3251 3771 4251 4771 5291 5791
Pipe 743023 5491 5821 6121 6431 0451 1101 1671 2231

Flanges
Blind flange 766211 1081 1121 1161 1181 1201 1221 1241 1261 1281 1301 1321 1341 1361 1381 1401 1421
Blind flange 767012 1561 1621 1681 1741
Spacer ring 768816 0421 0441 0461 0481 0501 0521 0541 0561 0581 0601 0621 0641 0661 0681 0701 0721
Spacer ring 768875 0331 0361 0391 2821
Spade 768813 0421 0441 0461 0481 0501 0521 0541 0561 0581 0601 0621 0641 0661 0681 0701 0721
Spade 768895 0331 0361 0391 2821
Spectacle blind 768803 0421 0441 0461 0481 0501 0521 0541 0561 0581 0601 0621 0641
Welding neck flange 766278 6021 6041 6061 6081 5601 5621 5641 5661 5081 5101 5121 5141 5161 5181 5201 5241
Welding neck flange 767082 1191 1441 1631 1801

Fittings
Cap bw 763019 0181 0241 0301 0381 0551 0751 0951 1151 1331 1531 1731 1951 2151 2361 2571 2781 6251 7771 8481 9101
Elbow 45 deg LR bw 763038 5681 5741 5801 5881 6051 6251 6451 6651 6831 7031 7231 7451 7651 7861 8071 8281 8881 9281 9731 9931
Elbow 90 deg LR bw 763040 5681 5741 5801 5881 6051 6251 6451 6651 6831 7031 7231 7451 7651 7861 8071 8281 8691 9061 9501 9701
Tee equal bw 763084 5681 5741 5801 5881 6051 6251 6451 6651 6831 7031 7231 7451 7651 7861 8071 8281 1251 2771 9501 4101

Valves
Butterfly valve triple of flgd 774130 0651 0661 0671 0681 0691 0701 0711 0731 0761 0791 0821 0841
Check valve dual plate flgd 776711 0671 0681 0691 0701 0711 0731 0761 0791 0821 0841
Check valve flgd 771013 0531 0541 0551 0571
Check valve flgd 771020 0581 0601 0621 0641 0651 0661 0671 0681 0691 0701 0711 0731
Gate valve flgd 772020 3531 3541 3551 3571 0591 0601 0621 0641 0651 0661 0671 0681 0691 0701 0711 0731
Globe valve flgd 773014 0531 0541 0551 0571
Globe valve flgd 773020 0591 0601 0621 0641 0651

Miscellaneous
Gasket camprofile 854172 5181 5241 5301 5361
Gasket spiral wound 854136 4041 4061 4081 4121 4141 4181 3701 3741 3761 3781 3801 3821 3841 3861 3881 3921
Meterrun 766596 2621 2641 2661 2681
Orifice flange set 766295 0811 0821 0231 0241 0131 0141 0151 0161 0181 0191 0201 0221
Strainer Y-type (1 mm ca) 768319 4691 4701 4561 4581 4601 4621 4641 4661 4681
 DEP 31.38.01.12- Gen Class 31011, rev. F page 4

REDUCING/PIPING COMPONENTS

Run x Br BROB RECB REEB TERB Run x Br BROB RECB REEB TERB Branch Run pipe BNIF BNIP
20 x 15 7630721371 7630731371 7630890351 400 x 50 7679003701 15 40 - 40 7680371611 7680310361
25 x 15 7630721471 7630731471 7630890451 400 x 80 7679003821 15 50 - 50 7680371631 7680310371
25 x 20 7630721571 7630731571 7630890551 400 x 100 7679003941 15 80 - 200 7680371641 7680310381
40 x 15 7630721671 7630731671 400 x 150 7679004041 15 250 - 1200 7680371651 7680310391
40 x 20 7630721771 7630731771 7630890751 400 x 200 7679004641 7630724521 7630734521 20 50 - 50 7680371661 7680310401
40 x 25 7630721871 7630731871 7630890851 400 x 250 7630724611 7630734611 7630895041 20 80 - 100 7680371671 7680310411
50 x 20 7629461921 7629611921 400 x 300 7630724731 7630734731 7630895301 20 150 - 300 7680371691 7680310431
50 x 25 7630721961 7630731961 7630891091 400 x 350 7630724841 7630734841 7630895551 20 350 - 1200 7680371711 7680310441
50 x 40 7630722061 7630732061 7630891181 450 x 50 7679003711 25 80 - 80 7680371731 7680310451
80 x 40 7630722261 7630732261 450 x 80 7679003831 25 100 - 100 7680371751 7680310461
80 x 50 7630722351 7630732351 7630891321 450 x 100 7679003951 25 150 - 250 7680371761 7680310471
100 x 40 7630722501 7630732501 450 x 150 7679004051 25 300 - 1200 7680371771 7680310491
100 x 50 7630722651 7630732651 7630891531 450 x 200 7679004661 40 80 - 80 7680371791 7680310511
100 x 80 7630722751 7630732751 7630891651 450 x 250 7630725211 7630735211 7630896031 40 100 - 100 7680371801 7680310521
150 x 50 7679008141 450 x 300 7630725511 7630735511 7630896271 40 150 - 150 7680371821 7680310531
150 x 80 7630722951 7630732951 7630891771 450 x 350 7630725821 7630735821 7630896511 40 200 - 300 7680371831 7680310551
150 x 100 7630723051 7630733051 7630891891 450 x 400 7630726121 7630736121 7630896751 40 350 - 600 7680371851 7680310571
200 x 50 7679003661 500 x 50 7679003721 40 750 - 1200 7680371861 7680310151
200 x 80 7679003781 500 x 80 7679003841
200 x 100 7630723241 7630733241 7630892111 500 x 100 7679003961
200 x 150 7630723341 7630733341 7630892311 500 x 150 7679004061
250 x 50 7679003671 500 x 200 7679004681
250 x 80 7679003791 500 x 250 7679004841
250 x 100 7629463421 7629613421 7630892591 500 x 300 7630726411 7630736411 7630897471 Thermowell flgd DN 40
250 x 150 7630723521 7630733521 7630892771 500 x 350 7630726721 7630736721 7630897711 Length MESC number
250 x 200 7630723631 7630733631 7630892901 500 x 400 7630727021 7630737021 7630897951 230 7683370311
300 x 50 7679003681 500 x 450 7630727321 7630737321 7630898191 255 7683370321
300 x 80 7679003801 600 x 50 7679003741 305 7683370331
300 x 100 7679003921 600 x 80 7679003861 355 7683370341
300 x 150 7630723811 7630733811 7630893161 600 x 100 7679003981 405 7683370351
300 x 200 7630723941 7630733941 7630893271 600 x 150 7679004081 455 7683370361
300 x 250 7630724031 7630734031 7630893491 600 x 200 7679004721
350 x 50 7679003691 600 x 250 7679004881
350 x 80 7679003811 600 x 300 7630898671
350 x 100 7679003931 600 x 350 7630898911
350 x 150 7679004031 7630724121 7630734121 600 x 400 7630728821 7630738821 7630899151
350 x 200 7630724211 7630734211 7630893891 600 x 450 7630729121 7630739121 7630899391
350 x 250 7630724331 7630734331 7630894141 600 x 500 7630729421 7630739421 7630899631
350 x 300 7630724431 7630734431 7630894401

Comp.name Description
BNIF Branch fitting flgd
BNIP Branch fitting plain
BROB Branch outlet bw
RECB Reducer concentric bw
REEB Reducer eccentric bw
TERB Tee reducing bw
 DEP 31.38.01.12- Gen Class 31011, rev. F page 5

REDUCING/PIPING COMPONENTS

Run x Br BROB RECB REEB TERB Run x Br BROB RECB REEB TERB
750 x 50 7678011071 1050 x 50 7678034371
750 x 80 7678011201 1050 x 80 7678034601
750 x 100 7678011331 1050 x 100 7678034791
750 x 150 7678011461 1050 x 150 7678034851
750 x 200 7678031601 1050 x 200 7678032901
750 x 250 7678031731 1050 x 250 7678032991
750 x 300 7678031771 1050 x 300 7678033041
750 x 350 7678031801 1050 x 350 7678033081
750 x 400 7630956631 1050 x 400 7678033121
750 x 450 7630957231 1050 x 450 7678033161
750 x 500 7630957701 1050 x 500 7678033201
750 x 600 7629510951 7629710951 7630958201 1050 x 600 7630967861
900 x 50 7678015101 1050 x 750 7629898181
900 x 80 7678015231 1050 x 900 7629526391 7629729361 7630968471
900 x 100 7678015361 1200 x 50 7678017161
900 x 150 7678015491 1200 x 80 7678017291
900 x 200 7678014621 1200 x 100 7678017421
900 x 250 7678014751 1200 x 150 7678017551
900 x 300 7678014841 1200 x 200 7678016681
900 x 350 7678014881 1200 x 250 7678016811
900 x 400 7678014921 1200 x 300 7678016851
900 x 450 7630963461 1200 x 350 7678016881
900 x 500 7630963601 1200 x 400 7678016911
900 x 600 7630963801 1200 x 450 7678016941
900 x 750 7629523531 7629723531 7630964401 1200 x 500 7678016971
1200 x 600 7629896531
1200 x 750 7629897131
1200 x 900 7629897731
1200 x 1050 7629526721 7629726721 7629898331
 DEP 31.38.01.12- Gen Class 31011, rev. F page 6

BOLTING Std boltset orifice flg

DN nr inch x mm MESC number
Std boltset blind flange 50 8 5/8 x 130 8138612781
DN nr inch x mm MESC number 80 8 3/4 x 140 8138613351
750 28 1 3/4 x 310 8138617561 100 8 3/4 x 150 8138613371
900 32 2 x 450 8138618311 150 12 3/4 x 150 8138613371
1050 32 1 5/8 x 350 8138617341 200 12 7/8 x 170 8138614091
1200 32 1 7/8 x 390 8138617951 250 16 1 x 190 8138614771
300 16 1 1/8 x 210 8138615381
Std boltset standard flg 350 20 1 1/8 x 220 8138615401
DN nr inch x mm MESC number 400 20 1 1/4 x 230 8138615981
15 4 1/2 x 70 8138611551 450 24 1 1/4 x 250 8138615861
20 4 5/8 x 80 8138612691 500 24 1 1/4 x 260 8138616031
25 4 5/8 x 80 8138612691 600 24 1 1/2 x 290 8138617121
40 4 3/4 x 100 8138613291
50 8 5/8 x 90 8138612711 Std boltset blind/spacer
80 8 3/4 x 110 8138613301 DN nr inch x mm MESC number
100 8 3/4 x 120 8138613321 15 4 1/2 x 80 8138611571
150 12 3/4 x 130 8138613341 20 4 5/8 x 90 8138612711
200 12 7/8 x 140 8138614041 25 4 5/8 x 90 8138612711
250 16 1 x 160 8138614721 40 4 3/4 x 110 8138613301
300 16 1 1/8 x 180 8138615331 50 8 5/8 x 100 8138612731
350 20 1 1/8 x 180 8138615331 80 8 3/4 x 130 8138613341
400 20 1 1/4 x 190 8138615921 100 8 3/4 x 130 8138613341
450 24 1 1/4 x 200 8138615881 150 12 3/4 x 150 8138613371
500 24 1 1/4 x 210 8138615951 200 12 7/8 x 170 8138614091
600 24 1 1/2 x 240 8138616871 250 16 1 x 190 8138614771
750 28 1 3/4 x 300 8138617541 300 16 1 1/8 x 210 8138615381
900 32 2 x 340 8138618141 350 20 1 1/8 x 220 8138615401
1050 32 1 5/8 x 350 8138617341 400 20 1 1/4 x 240 8138616001
1200 32 1 7/8 x 390 8138617951 450 24 1 1/4 x 250 8138615861
500 24 1 1/4 x 260 8138616031
Std boltset mrun flg 600 24 1 1/2 x 300 8138616961
DN nr inch x mm MESC number 750 28 1 3/4 x 370 8138617651
15 4 5/8 x 130 8138612781 900 32 2 x 480 8138618361
20 4 5/8 x 130 8138612781 1050 32 1 5/8 x 450 8138617461
25 4 5/8 x 130 8138612781 1200 32 1 7/8 x 500 8138834911
40 4 3/4 x 140 8138613351
 DEP 31.38.01.12- Gen Class 31011, rev. F page 7

ASSEMBLIES

Drain or vent point DN 15 Fig.I DN15 - 15 Pressure instr conn DN 15 Fig.0J DN15 - 25
Branch: according to branch table Branch: according to branch table
Blind flange 1 7662111081 Gate valve flgd 1 7720203531
Welding neck flange 1 7662786021 Lap joint flange 1 7662203081
Gasket spiral wound 1 8541364041 Pipe 1 7430050181
Studbolt with nuts 4 8138611551 Welding neck flange 1 7662786021
Gasket spiral wound 2 8541364041
Drain or vent point DN 20 Fig.I DN20 - 40 Studbolt with nuts 4 8138611551
Branch: according to branch table Studbolt with nuts 4 8138611551
Blind flange 1 7662111121
Welding neck flange 1 7662786041 Pressure instr conn DN 15 Fig.0H DN40 - 1200
Gasket spiral wound 1 8541364061 Branch: branch nipple flanged
Studbolt with nuts 4 8138612691 Gate valve flgd 1 7720203531
Lap joint flange 1 7662203081
Drain or vent point DN 20 Fig.H DN50 - 50 Gasket spiral wound 2 8541364041
Branch: branch nipple flanged Studbolt with nuts 4 8138611551
Blind flange 1 7662111121 Studbolt with nuts 4 8138611551
Gasket spiral wound 1 8541364061
Studbolt with nuts 4 8138612691 Temp instr conn DN 40 Fig.NS DN80 - 100
Branch: branch nipple flanged
Drain or vent point DN 25 Fig.H DN80 - 300 Lap joint flange 1 7662203181
Branch: branch nipple flanged Gasket spiral wound 1 8541364121
Blind flange 1 7662111161 Thermowell flgd DN 40 L=230 mm 1 7683370311
Gasket spiral wound 1 8541364081 Studbolt with nuts 4 8138613301
Studbolt with nuts 4 8138612691
Temp instr conn DN 40 Fig.NL DN150 - 1200
Drain or vent point DN 40 Fig.H DN350 - 1200 Branch: branch nipple flanged
Branch: branch nipple flanged Lap joint flange 1 7662203181
Blind flange 1 7662111181 Gasket spiral wound 1 8541364121
Gasket spiral wound 1 8541364121 Thermowell flgd DN 40 L=255 mm 1 7683370321
Studbolt with nuts 4 8138613291 Studbolt with nuts 4 8138613301

Meter run connection DN 15 Fig.0H DN15 - 40

Branch: not applicable
Gate valve flgd 2 7720203531
Lap joint flange 2 7662203081
Gasket spiral wound 4 8541364041
Studbolt with nuts 8 8138611551
Studbolt with nuts 8 8138611551

Orifice connection DN 15 Fig.0I DN50 - 600

Branch: not applicable
Gate valve flgd 2 7720203531
Lap joint flange 2 7662203081
Welding neck flange 2 7662786021
Gasket spiral wound 4 8541364041
Studbolt with nuts 8 8138611551
Studbolt with nuts 8 8138611551