stainless steel valve

PK_31

Stainless steel valve are utilized in the chemical, petrochemical, food, paper, and pharmaceutical processing industries all over the world.

Investment casting shall be manufactured up to 1 1/2" for class 150 and 300.

Shell materials shall be in accordance with ASTM A351 Grade CF8M & CF8 and the others are optional.

Stainless steel valve are designed and manufactured in conformity with API, ANSI, BS and other standards recognized with quality meeting the stringent requirements for such industrial applications.

Stainless steel valve are specialized products through the processes of design, material selection, manufacturing, quality control, and experiences to final product.

INVESTMENT CASTING

PRODUCTION RANGE

VALVE SHELL MATERIALS

※At temperatures over 1000℉, use the material only when the carbon contents is 0.04% or higher.

A351 Gr. CF8

A351 Gr. CF8M

A351 Gr. CF3

A351 Gr. CF3M

A351 Gr. CF8C

A351 Gr. CN7M

A890 Gr 4A ( UNS J92205 )

A890 Gr 6A ( UNS J93380 )

1500℉ ( 816℃ )＊

1500℉ ( 816℃ )＊

800℉ ( 427℃ )

850℉ ( 454℃ )

1500℉ ( 816℃ )＊

300℉ ( 149℃ )

600℉ ( 316℃ )

600℉ ( 316℃ )

ASTM DESIGNATION MAXIMUM WORKING TEMPERATURE℉(℃)

TYPECLASS 150 300

1/2-24

1/2-12

1/2-24

1/2-24

1/2-12

1/2-24

GATE

GLOBE

SWING CHECK

UNIT : NPS

STAINLESS STEEL VALVE

PK_35

Depending on service conditions, various materials are available optionally for flange gasket and stem packing.

PK adopts an H-shaped flexible wedge of which the size is 3" and larger for Class 150 and 2" and higher for Class 300/600. The H-shaped flexible wedges are featured with mechanical flexibility to be able to adjust to the shape of body seat for secure mutual contacts.It has a particular importance when large gate valve is applied to extremely high pressure and temperature that temporary deformation may occur in valve all the time.If the H-shape wedge is provided, operating torque would get smaller, seat wear less, and valve closing tighter.

A. Gasket materials

1. Glass fiber sheet2. Spiral wound material (Graphite or PTFE)3. PTFE4. Metal ring5. Graphite

B. Packing materials

1. PTFE2. Graphite3. Glass fiber sheet

OPTIONAL BONNET FLANGE GASKET MATERIAL

DESIGN FEATURES OF PK STAINLESS STEEL GATE VALVE WEDGES

2 1/2 & SMALLER 3 & LARGER

CLASS

ONE PIECE SOLID WEDGE FLEXIBLE ONE PIECE WEDGE

UNIT : NPS

150

300

600

1 & SMALLER

-

1 1/2 & LARGER

2 & LARGER

PK_54PK_36

PK_55

Globe valve adopts plug type disc. The bottom guide type plug disc shall be applied following the range shown below.

It is manufactured by two different ways depending on the valve size.

DESIGN FEATURES OF GLOBE VALVE DISC

DESIGN FEATURES OF GATE VALVE YOKE SLEEVE

8 AND LARGER300

CLASS SIZEUNIT : NPS

150 10 AND LARGER

5 AND SMALLER

TYPE A TYPE BUNIT : NPS

6 AND LARGER

Yoke caps type B is made of CS 1020+Zn plating.

8 AND LARGER300

CLASS SIZEUNIT : NPS

150 10 AND LARGER

5 AND SMALLER

TYPE A TYPE BUNIT : NPS

6 AND LARGER

PLUG DISC

BOTTOM GUIDETYPEPLUG DISC

TYPE A TYPE B

PK_37

On 10" and smaller valve, the yoke is integrated with bonnet.On 12" and larger valve, the yoke is separated from bonnet.

Hand wheels are made in accordance with ASTM A 197 for external dimension 560mm and ASTM A216 WCB for over 560mm. A hammer blow type hand wheel of ASTM A216 WCB is provided for Class 150 (size 8) VALVE and Class 300 and over valve (size 6")

DESIGN FEATURES OF GATE VALVE YOKE

DESIGN FEATURES OF VALVE HAND WHEELS

SIZE

Type A

BOLT

300

Type B FULL THREAD.BOLT & NUT300

6 AND LARGER

UNIT : NPS

3 AND LARGER

2 1/2 AND SMALLER

5 AND SMALLERHEX. HEAD

CLASS150

150

INTEGRAL YOKE SEPARATE YOKE

TYPE AHEX. HEADED BOLT

TYPE BSTUD BOLT

It is manufactured by two different ways depending on valve class and size.

DESIGN FEATURES OF VALVE BONNET BOLTS

PK_56PK_38

PK_57

DIMENSION AND WEIGHT

SIZEL

L1DH

WEIGHT(kg)

CLASS 150 UNIT : mm

1/2108.0108.0120208

6

3/4117.3117.3120208

6

1127.0127.0120226

6

1 1/2165.1165.1140285

9

2177.8215.916033312

2 1/2190.5241.316038418

3203.2282.420042423

4228.6304.825053135

6266.7403.431573062

8292.1419.1355938102

10330.2457.2355

1114147

12355.6501.7400

1317213

SIZEL

L1DH

WEIGHT(kg)

CLASS 300 UNIT : mm

1/2139.7139.7120208

8

3/4152.4152.4120211

8

1165.1165.1120279

8

1 1/2190.5190.520030616

2215.9215.920034618

2 1/2241.3241.320038829

3282.4282.422444739

4304.8304.825054254

6403.4403.4355758112

8419.1419.1400949202

10457.2457.2450

1152253

12501.7501.7500

1417390

L(RF), L1(BW)

H (O

PEN

)

øD

NO. PART NAME MATERIAL

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

123456789

101112131415161718192021

A351 - CF8A351 - CF8A351 - CF8A479 - 304A197A351 - CF8A351 - CF8

A351 - CF8A193 - B8A194 - 8A479 - 304A479 - 304A193 - B8A194 - 8A576 - 1020+ZnA439 - D2C304 S.SSTEEL+ CrSTEEL+ Cr

A351 - CF8MA351 - CF8MA351 - CF8MA479 - 316A197A351 - CF8MA351 - CF8M

A351 - CF8A193 - B8A194 - 8A479 - 304A479 - 316A193 - B8A194 - 8A576 - 1020+ZnA439 - D2C304 S.SSTEEL+ CrSTEEL+ Cr

BODYBONNET WEDGESTEMHAND WHEELBODY SEATBACK SEATGASKETPACKINGGLAND FLANGEHINGE BOLTHINGE NUTHINGE PINPACKING GLANDBONNET BOLTBONNET NUTYOKE CAPYOKE SLEEVEHANDLE NUTSET SCREWNIPPLE

STANDARD MATERIAL SPECIFICATIONS

- R.F FLANGED ENDS TO ASME B16.5

- B.W. ENDS TO ASME B16.25

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

- CONSULT US FOR LARGER SIZE

END CONNECTION

GATE VALVE

PK_39





END CONNECTION

GLOBE VALVE

L(RF), L1(BW)

H (O

PEN

)

øDNO. PART NAME MATERIAL

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

123456789

1011121314151617181920

A351 - CF8A351 - CF8A351 - CF8A479 - 304A197A351 - CF8A351 - CF8

A351 - CF8A193 - B8A194 - 8A479 - 304A479 - 304A193 - B8A194 - 8A439 - D2CA479 - 304A194 - 8304 S.S

A351 - CF8MA351 - CF8MA351 - CF8MA479 - 316A197A351 - CF8MA351 - CF8M

A351 - CF8A193 - B8A194 - 8A479 - 304A479 - 316A193 - B8A194 - 8A439 - D2CA479 - 316A194 - 8304 S.S

BODYBONNET DISCSTEMHAND WHEELBODY SEATBACK SEATGASKETPACKINGGLAND FLANGEHINGE BOLTHINGE NUTHINGE PINPACKING GLANDBONNET BOLTBONNET NUTYOKE BUSHLOCK NUTHANDLE NUTWASHER



SIZEL

L1DH

WEIGHT(kg)

CLASS 150 UNIT : mm1/2

108.0108.0100174

4

3/4117.3117.3100174

4

1127.0127.0140224

4

1 1/2165.1165.116025910

2203.2203.216026613

2 1/2215.9215.920028121

3241.3241.322434227

4292.1292.128037742

6406.4406.435542976

8495.3495.3355558149

10622.3622.3400740241

12698.5698.5400803395

SIZEL

L1DH

WEIGHT(kg)

CLASS 300 UNIT : mm1/2

152.4152.4100185

9

3/4177.8177.8100194

9

1203.2203.2140224

9

1 1/2228.6228.616026715

2266.7266.716032917

2 1/2292.1292.120035433

3317.5317.522438334

4355.6355.628044346

6444.5444.5355567125

8558.8558.8400625218

10622.3622.3450881367

12711.2711.2500989521

PK_58PK_40

PK_59


SIZEL

L1H

WEIGHT(kg)

CLASS 150 UNIT : mm

1/2108.0108.0

855

3/4117.3117.3

895

1127.0127.0102

5

1 1/2165.1165.112011

2203.2203.213813

2 1/2215.9215.915518

3241.3241.316022

4292.1292.120136

6355.6355.624862

8495.3495.3293119

10622.3622.3330155

12698.5698.5354235

SIZEL

L1H

WEIGHT(kg)

1/2152.4152.4

9310

3/4177.8177.8

9610

1215.9215.911210

1 1/2241.3241.312614

2266.7266.715219

2 1/2292.1292.116425

3317.5317.517633

4355.6355.618653

6444.5444.5262109

8533.4533.4312199

10622.3622.3355231

12711.2711.2393308

CLASS 300 UNIT : mm

L(RF), L1(BW)

H

NO. PART NAME MATERIAL123456789

1011121314

A351 - CF8A351 - CF8A351 - CF8A351 - CF8A479 - 304A351 - CF8A479 - 304

304 S.SA193 - B8A194 - 8A194 - 8304 S.SA240 - 304

A351 - CF8MA351 - CF8MA351 - CF8MA351 - CF8MA479 - 304A351 - CF8MA479 - 304

304 S.SA193 - B8A194 - 8A194 - 8M304 S.SA240 - 304

BODYBONNET DISCARMROD PINBODY SEAT RINGPLUG BOLTGASKETPLUG GASKETBONNET BOLTBONNET NUTDISC NUTPINWASHER

SPIRAL WOUND / GRAPHITE+316+316


SWING CHECK VALVE





END CONNECTION

PK_41

stainless steel valve

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