CRYOGENIC VALVE

Cryogenic valve are specially engineered and designed for piping

systems used in the storage and transport of liquefied gasses

such as LNG and liquid nitrogen and oxygen. The main structural

feature of these valve is an extended bonnet with an enclosed

vapor chamber to isolate packing from the cryogenic fluid and

thereby allow packing to function properly. PK Vlave Cryogenic

designs and liquid nitrogen testing facilities go much further to

assure proven performance in this most demanding application.

Materials suitable for working condition must be adopted for low temperature VALVE.Especially in petrochemical industry, the types of fluids to be processed are different according to each section even in the same plants. At the same time, the temperatures used are also different. A full consideration must be paid to the selection of

material.

CRYOGENIC SERVICE VALVE

MATERIAL

BODY MATERIAL BOLT NUTSERVICE TEMPERATURE

-50

-75

-100

-150

-425

-425

-425

-425

CARBON STEEL( GRADE LCB)

C-1/2Mo( GRADE LC1)

2 1/2NI( GRADE LC2)

3 1/2NI( GRADE LC3)

TYPE 304( GRADE CF8)

TYPE 304( GRADE CF3)

TYPE 316( GRADE CF8M)

TYPE 316L( GRADE CF3M)

A320 GR. L7

A320 GR. L7

A320 GR. L7

A320 GR. L7

A320 GR. B8

A320 GR. B8

A320 GR. B8

A320 GR. B8

A194 GR. 4

A194 GR. 4

A194 GR. 4

A194 GR. 4

A194 CR. 8

A194 CR. 8

A194 CR. 8

A194 CR. 8

-46

-59

-73

-101

-254

-254

-254

-254

℉ ℃

As for the materials constituting the low temperature valve, special consideration must be paid to the materials used at pressure parts as in the case of body and bonnet.

BODY AND BONNET

CRYOGENIC VALVE

PK_62PK_66

Following the body and bonnet, selection of materials for main parts such as stem, seat ring, and gland is very important. We adopt austenite stainless steel.

Teflon or other plastic packing protecting from shinkage by large cloumn of insulating gas.

Stellite 6 for all medium and high pressure application prevents seizing and galling.

Material for bolts at low temperatures requires especially strength. Therefore, rigidity at low temperature is demanded and brittleness at low temperature of steel material can be improved generally by heat treatment.We use it according to ASTM standard.

ASTM : A351-CF8, CF8M, CF3, CF3M or Equivalent

TRIM

PACKING

SEATING SURFACE

BOLT AND NUT

TABLE OF LIQUEFIED GASSES

PRODUCTION MATERIALS

TYPENATURAL GAS, LNG

METHANE, CH4

OXYGEN, O2

ARGON, AR

CARBON DIOXIDE, CO2

NITROGEN, N2

HYDROGEN, H2

HELIUM, HE

BOILING POINT

-270

-258

-296

-303

-314

-320

-423

-452

-168

-162

-183

-186

-192

-196

-253

-269

℉ ℃

CLASSTYPE

GATE

150 300 600 900 15002-48

2-36

2-48

1/2 - 60

2-60

2-36

2-48

1/2 - 60

2-52

2-36

2-30

2-36

1/2 - 48

2-24

2-20

2-24

1/2 - 36

2-16

2-12

2-16

1/2 - 24

25002-16

2-12

2-16

1/2 - 16

UNIT : NPS

GLOBE

SWING CHECK

BALLBUTTERFLY

PK_63PK_67

NO. PART NAME MATERIAL

GRAPHITE+GRAPHITE WITH INCONEL WIRESPIRAL WOUND / GRAPHITE+316+316

123456789

10111213141516171819202122232425

A351 - CF8A351 - CF8A351 - CF8+STLA479 - 304A197A240 - 304+ STLA479 - 304

A351 - CF8A193 - B8A194 - 8A479 - 304A479 - 304A320 - B8 CL.2A194 - 8304 S.SAL-BRONZEA47 - 32510+ZnSTEEL+ CrSTEEL+ CrA351 - CF8A479 - 304DUCTILE IRONA53

A351 - CF8MA351 - CF8MA351 - CF8M+STLA479 - 316A197A240 - 316+STLA479 - 316

A351 - CF8A193 - B8A194 - 8A479 - 304A479 - 316A320 - B8 CL.2A194 - 8304 S.SAL-BRONZEA47 - 32510+ZnSTEEL+ CrSTEEL+ CrA351 - CF8A479 - 316DUCTILE IRONA53

BODYBONNET WEDGESTEMHAND WHEELBODY SEAT RINGBACK SEAT RINGGASKETPACKINGGLAND FLANGEHINGE BOLTHINGE NUTHINGE PINPACKING GLANDBONNET BOLTBONNET NUTYOKE CAPYOKE SLEEVEHANDLE NUTSET SCREWNIPPLEYOKESTUFFING RINGGEAR BOXSTEM COVER

STANDARD MATERIAL SPECIFICATIONS

GOV (GEAR OPERATED)

H 1

øD1

L(RF), L1(BW)

H (O

PEN

)

øD

GATE VALVE

- R.F FLANGED ENDS TO ASME B16.5

- B.W. ENDS TO ASME B16.25

- R.T.J FLANGED ENDS TO ASME B16.5

- SIZE 26" AND LARGER, FLANGED ENDS

ACCORDING TO ASME B16.47 SER.A OR SER.B

- CONSULT US FOR LARGER SIZE

END CONNECTION

PK_64PK_68

DIMENSION AND WEIGHTCLASS 150 UNIT : mm

SIZEL

L1D

D1H

H1

2177.8215.9200

-653

-

3203.2282.5224

-763

-

4228.6304.8250

-844

-

6266.7403.4355250

10451175

8292.1419.1355250

12221323

10330.2457.2355355

14581587

12355.6501.7

-355

-1835

14381.0571.5

-355

-2080

16406.4609.6

-500

-2314

18431.8660.4

-500

-2350

241143.01143.0

-710

-2986

281346.21346.2

-800

-3552

301397.01397.0

-800

-3716

CLASS 300 UNIT : mmSIZE

LL1D

D1H

H1

2215.9215.9200

-676

-

3282.4282.4224

-766

-

4304.8304.8250

-851

-

6403.4403.4355250

10211154

8419.1419.1400355

12781457

10457.2457.2450355

14791602

12501.7501.7

-355

-1853

14762.0762.0

-500

-1980

16838.2838.2

-500

-2316

18914.4914.4

-630

-2393

20990.6990.6

-630

-2663

241143.01143.0

-710

-2986

281346.21346.2

-800

-3552


LL1D

D1H

H1

2292.1292.1200

-674

-

3355.6355.6250

-785

-

4431.8431.8355

-879

-

6558.8558.8450355

10841213

8660.4660.4500500

13261506

10787.4787.4

-500

-1628

12838.2838.2

-630

-1883

14889.0889.0

-630

-2014

16990.6990.6

-710

-2214

181092.21092.2

-710

-2445

201193.81193.8

-800

-2680

261447.81447.8

-900

-3320


LL1D

D1H

H1

2368.3368.3250

-595

-

3381.0381.0355250802

-

4457.2457.2355250928

1033

6609.6609.6500500

12311327

8736.6736.6630500

13931558

10838.2838.2710630

16911813

12965.2965.2

-710

-1924

141028.71028.7

-710

-2020

161130.31130.3

-710

-2251

181219.21219.2

-900

-2509

201320.81320.8

-900

-2655

241549.41549.4

-900

-3178


LL1D

D1H

H1

3469.9469.9

-250

-950

6704.9704.9

-400

-1480

PK_65PK_69

NO. PART NAME MATERIAL123456789

101112131415161718192021222324

A351 - CF8A351 - CF8A351 - CF8+STLA479 - 304A197A351 - CF8+ STLA479 - 304

A351 - CF8A193 - B8A194 - 8A479 - 304A479 - 304A320 - B8 CL.2A194 - 8AL-BRONZEA479 - 304A194 - 8A240 - 304A351 - CF8A479 - 304DUCTILE IRONA53

A351 - CF8MA351 - CF8MA351 - CF8M+STLA479 - 316A197A351 - CF8M+STLA479 - 316

A351 - CF8A193 - B8A194 - 8A479 - 304A479 - 316A320 - B8 CL.2A194 - 8AL-BRONZEA479 - 316A194 - 8A240 - 304A351 - CF8A479 - 316DUCTILE IRONA53

BODYBONNET DISCSTEMHAND WHEELBODY SEAT RINGBACK SEAT RINGGASKETPACKINGGLAND FLANGEHINGE BOLTHINGE NUTHINGE PINPACKING GLANDBONNET BOLTBONNET NUTYOKE BUSHLOCK NUTHANDLE NUTWASHERYOKESTUFFING RINGGEAR BOXSTEM COVER

GRAPHITE+GRAPHITE WITH INCONEL WIRESPIRAL WOUND / GRAPHITE+316+316


GOV (GEAR OPERATED)

H 1

øD1

H (O

PEN

)

d

øD

L(RF), L1(BW)

GLOBE VALVE

PK_66







END CONNECTION

PK_70

DIMENSION AND WEIGHT

SIZEL

L1D

D1H

H1

CLASS 150 UNIT : mm2

203.2203.2200

-573

-

3241.3241.3250

-655

-

4292.1292.1315

-693

-

6406.4406.4355350816

1094

8495.3495.3355450990

1056

10622.3622.3400450

-1148

18978.0978.0

-630

-1891

14787.4787.4

-560

-1358

12698.5698.5400500

-1266

SIZEL

L1D

D1H

H1


266.7266.7200

-621

-

3317.5317.5250

-713

-

4355.6355.6315

-773

-

6444.5444.5355450894

1159

8558.8558.8400500

10471156

10622.3622.3450560

11921400

12711.2711.2

-630

-1638

14838.2838.2

-630

-1627

SIZEL

L1D

D1H

H1


292.1292.1224

-607

-

3355.6355.6315

-692

-

4431.8431.8315

-776

-

6558.8558.8450500

-1176

8660.4660.4

-560

-1426

SIZEL

L1D

D1H

H1


368.3368.3315

-688

-

3381.0381.0315

-737

-

4457.2457.2355

-882

-

6609.6609.6450560

-1488

8736.6736.6710630

-1789

SIZEL

L1D

D1H

H1


368.3368.3315

-688

-

3469.9469.9355

-798

-

PK_67PK_71

NO. PART NAME MATERIAL123456789

1011121314

A351 - CF8A351 - CF8A351 - CF8+STLA351 - CF8A479 - 304A240+304+STLA479 - 304

304 S.SA320 - B8 CL.2A194 - 8A194 - 8304 S.S340 S.S

A351 - CF8MA351 - CF8MA351 - CF8M+STLA351 - CF8MA479 - 316A240+316+STLA479 - 316

316 S.SA320 - B8 CL.2A194 - 8A194 - 8M316 S.S315 S.S

BODYBONNET DISCARMROD PINBODY SEAT RINGPLUG BOLTGASKETPLUG GASKETBONNET BOLTBONNET NUTDISC NUTPINWASHER

SPIRAL WOUND / GRAPHITE+316+316


SWING CHECK VALVE

L(RF), L1(BW)

H

d

PK_68







END CONNECTION

PK_72


SIZEL

L1H

WEIGHT(kg)


203.2203.216016

3241.3241.319026

4292.1292.122545

6355.6355.626078

8495.3495.3320136

10622.3622.3350214

12698.5698.5380319

14787.4787.4405412

16863.6863.6460514

18977.9977.9505749

20977.9977.9570933

241295.41295.4

6801346

261295.4

-865

1727

281447.8

-918

1964

301524

-962

2247

SIZEL

L1H

WEIGHT(kg)


266.7266.716021

3317.5317.519942

4355.6355.622764

6444.5444.5278124

8533.4533.4322222

10622.3622.3383291

12711.2711.2435444

14838.2838.2510632

16863.6863.6521786

18977.9977.9572

1058

201016.01016.0

6221210

241346.21346.2

7121916

261346.2

-979

2000

281498.6

-983

2600

301593.9

-11153664

SIZEL

L1H

WEIGHT(kg)


292.1292.119731

3355.6355.621056

4431.8431.8256103

6558.8558.8329204

8660.4660.4364342

10787.4787.4464624

12838.2838.2486776

14889.0889.0572938

16990.6990.6660

1250

181092.21092.2

7111518

201193.81193.8

7872390

241397.01397.0

8643686

26-

144810284000

301651

-11355502

SIZEL

L1H

WEIGHT(kg)


368.3368.326768

3381.0381.0290106

4457.2457.2306139

6609.6609.6338294

8736.6736.6460525

10838.2838.2500731

12965.2965.2578

1025

141028.71028.7

6471444

161130.31130.3

7101850

181219.21219.2

7852610

201320.81320.8

8503407

241549.41549.410065842

SIZEL

L1H

WEIGHT(kg)


368.3368.326773

3469.9439.9296125

4546.1546.1355212

6704.9704.9465470

8831.9831.9540825

10990.6990.6657960

121130.31130.3

7281510

161384.31384.311164630

PK_69PK_73

L

APP

ROX.

H

D

ø D2

BUTTERFLY VALVE

PK_70PK_74

MATERIAL ACCORDING TO ASTMNO. PART NAME MATERIAL

123456789

10111213141516171819202122232425262728293031323334353637383940

A351 - CF3A351 - CF8M+STLA479 - 316A351 - CF3GRAPHITE + CARBON FIBERA479 - 304A351 - CF8A193 - B8A194 - 8BI-MESHA320 - B8304L SS+Cu ALLOYA320 - B8/A194 - 8A240 - 304A193 - B8A194 - 8A193 - B7+CrA240 - 304A576 - 1045DUCTILEA240 - 316316SS+GRAPHITEB584 - C86300A240 - 316A320 - B8A194 - 8A240-316A53 or STEELA320-B8M CLASS2A194-8MAA351 - CF3A320-B8M CLASS 2A194-8MA316SS+GRAPHITEA320-B8M CLASS 2A194-BMA316SS+GRAPHITE316 SS316 SSSTEEL+ BRASS

BODYDISCSTEMCOVERPACKINGPACKING GLANDGLAND FLANGEGLAND BOLTGLAND NUTBUSH BEARINGKEYSEAL RINGSTOP BOLT/NUTYOKEYOKE BOLTYOKE NUTMOUNTING BOLTSPRING WASHERKEYGEAR BOXCAPGASKET(CAP)THRUST WASHERSEAT RETAINERRETAINER BOLTRETAINER NUTARRANGEMENT RINGHANDWHEELCAP BOLTCAP NUTBONNETBONNET BOLTBONNET NUTBONNET GASKETCOVER BOLTCOVER NUTCOVER GASKETADAPTERADATER RETAINERLOCKING DEVICE

SIZEdL

SCHH

D2Weight(Kg)

6153

403.410S69230070

8204

419.110S81030090

10254

457.210S845400126

12305

501.710S910400175

14337

571.510S940500270



PK_71PK_75

ø D2

L

APP

ROX.

H

D

PK_72PK_76

1234569

101112131415161718192021222324252627282930313233343536373839404142

A351 - CF3A351 - CF8M+STLA479 - 316A479 - 316BI-MESHB584 - C86300A320 - B8A240 - 316316SS+GRAPHITEA320-B8M CLASS 2A194 - 8MAA351 - CF3316SS+GRAPHITEA320-B8M CLASS 2A194 - 8MAGRAPHITE + CARBON FIBERA479 - 304A351 - CF8A193 - B8A194 - 8A240 - 304A193 - B8A194 - 8A576 - 1045DUCTILEA193 - B7+CrA240 - 304A53 or STEEL304L SS+Cu ALLOYA240 - 316A240 - 316A320 - B8A194 - 8 316 SS316 SSA351 - CF3316SS+GRAPHITEA320-B8M CLASS 2A194 - 8MASTEEL+ BRASS

BODYDISCSTEMLOW STEMBUSH BEARINGTHRUST WASHERSTOP BOLTCAPCAP GASKETCAP BOLTCAP NUTBONNETBONNET GASKETBONNET BOLTBONNET NUTPACKINGPACKING GLANDGLAND FLANGEGLAND BOLTGLAND NUTYOKEYOKE BOLTYOKE NUTKEYGEAR BOXMOUNTING BOLTSPRING WASHERHANDWHEELSEAL RINGARRANGEMENT RINGSEAT RETAINERRETAINER BOLTRETAINER NUTADAPTERADAPTER RETAINERCOVERCOVER GASKETCOVER BOLTCOVER NUTLOCKING DEVICE

MATERIAL ACCORDING TO ASTMNO. PART NAME MATERIAL


DIMENSION AND WEIGHTSIZE

dL

SCHH

D2Weight(Kg)

16388

609.610S970500330

20490

711.210S

1110560600

24591

812.810S

1260630

1050

30737

914.410

1375700

1750

32788

965.210

1415700

2050

36893

1016.010

1465700

2800

PK_73PK_77

CRYOGENIC VALVE

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