Rc 252120

CLASS 252120

DEP 31.38.01.12- Gen Class 252120, rev. B page 1

Design limits

Temperature (°C)-20 0 100 200 300 400 450 475 500

Pressure (Bar ga)DN 15- 150 326.6 326.6 303.9 286.4 275.0 248.0 238.0 216.2 172.4

Notes- Design limits acc. to ASME B16.5 flange rating mat. grp 1.9 and ASME B31.3 allowable internal pressure- For bending of pipe see DEP 31.38.01.31-Gen.- For basis of design see DEP 31.38.01.10-Gen.- Welds, attachment welds and cold formed piping parts shall be post-weld heat treated;

see DEP 30.10.60.18-Gen. and DEP 31.38.01.31-Gen.- This piping class is designed for hydrogen service as defined in DEP 31.38.01.31-Gen.- Piston type check valves (DN 15-40) for horizontal mounting only

Table of schedules

DN Schedule15 XXS20 XXS25 XXS40 XXS50 XXS80 XXS

100 XXS150 XXS

Branch connections 90 degrees

Branch SizeRunsize

15 20 25 40 50 80 100 150

150 C C C C E B B A100 C C C C B B A80 C C C C B A50 C C B B A40 C B B A25 B B A20 B A15 A

Code Explanation of charactersA Equal teeB Reducing teeC Branch fittingE Branch outlet

Alloy steel 1.25Cr-0.5Mo PWHT PlantClass no. 252120 ConsigneeASME rating CLASS 2500 Engineered byCorrosion allowance 1 mm PrincipalRevision letter B Contr. job no.Revision date 12/2010 Project no.


COMPONENT MATERIAL DESCRIPTION(For full material description see relevant MESC buying description.)

Pipe

PIPE Pipe DN 15-150 ASTM A335-P11

Flanges

BLFL Blind flange DN 15-150 ASTM A182-F11 cl 2LJFL Lap joint flange --- ASTM A182-F11 cl 2SBFL Spectacle blind DN 15-150 ASTM A387-11 cl 2SPFL Spade DN 15-150 ASTM A387-11 cl 2SPRT Spacer ring DN 15-150 ASTM A387-11 cl 2WNFL Welding neck flange DN 15-150 ASTM A182-F11 cl 2

Fittings

CAPB Cap bw DN 15-150 ASTM A234-WP11E45B Elbow 45 deg LR bw DN 15-150 ASTM A234-WP11E90B Elbow 90 deg LR bw DN 15-150 ASTM A234-WP11TEEB Tee equal bw DN 15-150 ASTM A234-WP11

Reducing fittings

BNIB Branch fitting bw DN 15-40 ASTM A182-F11 cl 2BNIF Branch fitting flgd DN 15-50 ASTM A182-F11 cl 2BROB Branch outlet bw DN 150-150 ASTM A182-F11 cl 2RECB Reducer concentric bw DN 20-150 ASTM A234-WP11REEB Reducer eccentric bw DN 20-150 ASTM A234-WP11TERB Tee reducing bw DN 20-150 ASTM A234-WP11

Valves

CHVF Check valve flgd DN 15-150 Body: ASTM A182-F11 cl 2/A217-WC6Trim: AISI 316, Stellite

GAVB Gate valve bw DN 20-150 Body: ASTM A182-F11 cl 2/A217-WC6Trim: AISI 316, Stellite

GLVB Globe valve bw DN 15-100 Body: ASTM A182-F11 cl 2/A217-WC6Trim: AISI 316, Stellite

Instruments

TWHD Thermowell flgd DN 50 DN 50-50 AISI 316TWHL Thermowell flgd DN 50 L=255 mm --- AISI 316TWHS Thermowell flgd DN 50 L=230 mm --- AISI 316

Miscellaneous

GKSW Gasket spiral wound DN 15-150 AISI 321, Graphite + anti oxidation inhCS centring- /SS inner ring

ORFS Orifice flange set DN 50-150 ASTM A182-F11 cl 2STBT Studbolt with nuts --- EN 10269 grade 20CrMoVTiB4-10


PIPING COMPONENTS

Nominal pipe size15 20 25 40 50 80 100 150

Item description MESC

PipePipe 743311 0231 0311 0391 0551 0631 0711 0801 0891

FlangesBlind flange 766410 5081 5121 5161 5181 5201 5221 5241 5261Spacer ring 768818 4581 4621 4661 4681 4701 4721 4741 4761Spade 768844 2021 2041 2061 2081 2101 2121 2141 2161Spectacle blind 768807 6581 6621 6661 6681 6701 6721 6741 6761Welding neck flange 766479 9301 9321 9341 9361 9381 9401 9421 9441

FittingsCap bw 763218 0121 0171 0211 0301 0401 0501 0621 0721Elbow 45 deg LR bw 763238 0121 0171 0211 0301 0401 0501 0621 0721Elbow 90 deg LR bw 763239 3811 3911 4011 4111 4211 4311 4421 4521Tee equal bw 763284 0121 0171 0211 0301 0401 0501 0621 0721

ValvesCheck valve flgd 771366 2531 2541 2551 2571 2581 2601 2621 2641Gate valve bw 772465 2581 2601 2621 2641Gate valve bw 772475 0541 0551 0571Globe valve bw 773465 2581 2601 2621Globe valve bw 773475 5031 5041 5051 5071

MiscellaneousGasket spiral wound 854158 5541 5561 5581 5621 5641 5681 5701 5741Orifice flange set 766491 9011 9031 9051 9071


REDUCING/PIPING COMPONENTS

Run x Br BROB RECB REEB TERB20 x 15 7632680041 7632690041 763286005125 x 15 7632680141 7632690141 763286013125 x 20 7632680241 7632690241 763286023140 x 15 7632680341 763269034140 x 20 7632680441 7632690441 763286037140 x 25 7632680541 7632690541 763286046150 x 20 7632680701 763269070150 x 25 7632680741 7632690741 763286065150 x 40 7632680841 7632690841 763286073180 x 40 7632680941 763269094180 x 50 7632681041 7632691041 7632860851

100 x 40 7632681241 7632691241100 x 50 7632681281 7632691281 7632861001100 x 80 7632681431 7632691431 7632861141150 x 50 7679274321150 x 80 7632681581 7632691581 7632861231150 x 100 7632681741 7632691741 7632861341

Comp.name DescriptionBNIB Branch fitting bwBNIF Branch fitting flgdBROB Branch outlet bwRECB Reducer concentric bwREEB Reducer eccentric bwTERB Tee reducing bw

Thermowell flgd DN 50Length MESC number230 7683380611255 7683380621

Branch Run pipe BNIB BNIF15 40 - 150 7680319561 768085501120 50 - 50 7680319571 768085502120 80 - 150 7680319581 768085503125 80 - 150 7680319601 768085505140 80 - 80 7680319631 768085507140 100 - 150 7680319651 768085508150 80 - 80 768085511150 100 - 150 7680855121


BOLTING

Std boltset stand flg [h]DN nr inch x mm MESC number15 4 3/4 x 130 813830147120 4 3/4 x 130 813830147125 4 7/8 x 140 813830220140 4 1 1/8 x 180 813830390150 8 1 x 180 813830307180 8 1 1/4 x 230 8138304801100 8 1 1/2 x 300 8138306431150 8 2 x 400 8138309011

Std boltset orificeflg[h]DN nr inch x mm MESC number50 8 1 x 190 813830309180 8 1 1/4 x 240 8138304821100 8 1 1/2 x 310 8138306451150 8 2 x 410 8138309031

Std boltset blind/spc [h]DN nr inch x mm MESC number15 4 3/4 x 140 813830149120 4 3/4 x 140 813830149125 4 7/8 x 160 813830224140 4 1 1/8 x 190 813830392150 8 1 x 200 813830311180 8 1 1/4 x 260 8138304861100 8 1 1/2 x 330 8138306491150 8 2 x 450 8138309111


ASSEMBLIES

Drain or vent point DN 15 Fig.I DN15 - 15Branch: according to branch tableBlind flange 1 7664105081Welding neck flange 1 7664799301Gasket spiral wound 1 8541585541Studbolt with nuts 4 8138301471

Drain or vent point DN 20 Fig.I DN20 - 40Branch: according to branch tableBlind flange 1 7664105121Welding neck flange 1 7664799321Gasket spiral wound 1 8541585561Studbolt with nuts 4 8138301471

Drain or vent point DN 20 Fig.H DN50 - 50Branch: branch nipple flangedBlind flange 1 7664105121Gasket spiral wound 1 8541585561Studbolt with nuts 4 8138301471

Drain or vent point DN 25 Fig.H DN80 - 150Branch: branch nipple flangedBlind flange 1 7664105161Gasket spiral wound 1 8541585581Studbolt with nuts 4 8138302201

Pressure instr conn DN 15 Fig.0U DN15 - 150Branch: according to branch tableGlobe valve bw 2 7734755031Lap joint flange 1 7664203081Pipe 1 7433110231Welding neck flange 1 7664799301Gasket spiral wound 1 8541585541Studbolt with nuts 4 8138301471

Temp instr conn DN 50 Fig.HS DN80 - 100Branch: branch nipple flangedLap joint flange 1 7664203201Gasket spiral wound 1 8541585641Thermowell flgd DN 50 L=230 mm 1 7683380611Studbolt with nuts 8 8138303111

Temp instr conn DN 50 Fig.HL DN150 - 150Branch: branch nipple flangedLap joint flange 1 7664203201Gasket spiral wound 1 8541585641Thermowell flgd DN 50 L=255 mm 1 7683380621Studbolt with nuts 8 8138303111

Rc 252120

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