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API 602 Standard Forged Steel NPT /SW /BW Webge Gate Valve

Forged steel flange gate valves API forged steel flange gate valve is widely used in the pipeline of oil, chemical, fire station and other working conditions, which ANSI class is 150-2500, and the working temperature less than 600℃. It is used to cut off or connect the medium. Applicable medium:...

Product Details

Forged steel flange gate valves

API forged steel flange gate valve is widely used in the pipeline of oil, chemical, fire station and other working conditions, which ANSI class is 150-2500, and the working temperature less than 600℃. It is used to cut off or connect the medium. Applicable medium: water,oil,steam,etc. Operation mode: manual, gear transmission, electrical, pneumatic and so on.


Structural features

Products designed and manufactured according to API standards, with sealing reliability and excellent performance, it works well with the imported equipment. Above 600Lb disc and the seat sealing using stellite cobalt-based alloy cladding, it is wear-resistant, high temperature resistance, corrosion resistance, and has an excellent anti-abrasion performance and a long service life.

Stem, which has been quenched and tempered and the surface has been treated by nitriding, will have a good anti-corrosion and scratch resistance. The use of wedge flexible disc structure and the large-diameter set rolling, makes the open and close easily.

Full range of body materials, packing and gasket are matched according to the actual working conditions or the user requests, they can be applied to all kinds of pressure, temperature and medium conditions.

1500LB, 2500LB cavity use the pressure of self-tight seal structure. Sealed property is increased by the rising of inner pressure, with high reliability.

Inverted sealing uses stainless steel screw connection seal seat or welding austenitic stainless steel body, it is reliable. And the packing replacement and maintenance can be carried out under non-stop conditions, it is convenient and does not affect system operation.


The materials of main parts

body

WCB

WC1

WC6

WC9

ZGCr5Mo

CF8

CF8M ZGCr18Ni9Ti

CF3

CF3M

bonnet

WCB

12Cr1MoV WC1

12Cr1MoV WC6

12Cr1MoV WC9

12Cr1MoV ZGCr5Mo

304 CF8

316 CF8M

CF3

CF3M

support

WCB

WCB

WCB

WCB

WCB

CF8

CF8M

CF3

CF3M

disc

WCB

WC1

WC6

WC9

ZGCr5Mo

CF8

CF8M

CF3

CF3M

stem

2Cr13

25Cr2MoV

seat

25

304

304

304

304

304

304

304

304

seal ring

pad coated, enhanced flexible graphite

packing

enhanced flexible graphite

stem nut

ZCuA110Fe3


Body structure

The flange standard is conform to API 602,MSS-SP-118(standard can be adopted)and ANSI B16.34、B35352. the inspection and test are according to API598, marks are according to MSS-Sp-25. using the following structures: full bore or reduced bore.

The face-to-face dimension is according to ANSI B16.10.

The flange dimension is according to ANSI B16.5.

Self-tight pressure bonnet.

Rising stem yoke

Self-centering pressplate and pressure sleeve.

Whole seal seat

Whole flange body

butt welded end is conform to the standard of ASME B16.25

RTJ body and bonnet connection form.

Bolt-connected, spiral wound gasket sealed bonnet; screw-connected,welded sealed bonnet and screw-connected,inner pressure self-tight bonnet.


The reference of the standard material 150Lb-600Lb


No.

part name

CS to ASTM

AS to ASTM

SS to ASTM



Type A105N

Type F22

Type F304(L)

Type F316(L)

1

body

A105N

A182 F22

A182 F304(L)

A182 F316(L)

2

seat

A276 420

A276 304

A276 304(L)

A276 316(L)

3

disc

A182 F430

A182 F304

A182 F304(L)

A182 F316(L)

4

stem

A182 F6a

A182 F304

A182 F304(L)

A182 F316(L)

5

gasket

316 packed with flexible graphite

316 packed with PTFE

6

bonnet

A105

A182 F22

A182 F304(L)

A182 F316(L)

7

boneet bolt

A193 B7

A193 B16

A193 B8

A193 B8M

8

cylindrical pin

A276 420

A276 304

9

packing sleeve

A276 410

A182 F304(L)

A182 F316(L)

10

eyelet bolt

A193 B7

A193 B16

A193 B8

A193 B8M

11

packing platen

A105

A182 F304

12

nut

A194 2H

A194 4

A194 8

A194 8M

13

stem nut

A276 420

14

jam nut

A194 2H

A194 4

A194 8

A194 8M

15

nameplate

SS

16

handwheel

A197

17

lubricate gasket

A273 431

18

packing

flexible graphite

PTFE

applicable medium

Water,steam,oil,etc

Water,steam,oil,etc

Nitric acid,acetic acid,etc

suitable temperature

-29°C~425°C

-29°C~550°C

-29°C~200°C

Forged steel socket welding valves


Design and manufacture standard

●design and manufacture::ANSIB16.34 API600 API602 

●flange dimension:ANSIB16.5

●pressure and temperature:ANSIB1.20.1

●face-to-face dimension:ANSIB16.10

●butt welded dimension:ANSIB16.11

●inspection and test:API598


Dimensions & constructral diagram

Forged steel socket welding valve constructral diagram(pic1)

Forged steel socket welding valve constructral diagram(pic2)


performance and material

No.

Part Name

CS to ASTM

AS to ASTM

SS to ASTM

Type A 105

Type F22

Type F304(L)

Type F316(L)

1

Body

A105

A182 F22

A182 F304(L)

A182 F316(L)

2

Seat Ring

A276 420

A276 304

A276 F304(L)

A276 F316(L)

3

Disc

A276 430&410

A182 F304

A182 F304(L)

A182 F316(L)

4

Stem

A182 F6

A182 F304

A182 F304(L)

A182 F316(L)

5

Gasket

Corrugated SS+graphite

SS+PTFE

6

Bonnet

A105

A182 F22

A182 F304(L)

A182 F316(L)

7

Bonnet Bolt

A193 B7

A193 B16

A193 B8

A193 B8M

8

Pin

A276 420

A276 F304

9

Packing sleeve

A276 410

A182 F304(L)

A182 F316(L)

10

Gland Eyebolt

A193 B7

A193 B16

A193 B8

A193 B8M

11

Packing Gland

A105

A182 F11

A182 F304(L)

A182 F316(L)

12

Nut

A194 2H

A 194 4

A194 8

A194 8M

13

Stem Nut

A276 420/Cu-Alloy

14

Handwheel Lock Nut

A 194 2H

A194 4

A 194 8

A194 8M

15

Nameplate

SS

16

Handwheel

A197

17

Gasket

A473 431

18

Packing

Flexible Graphite

PTFE

 Suitable Medium

Water,oil,gas.etc

HNO3,CH3OOH etc

 Suitable Temperature

-29℃~425℃

-29℃~550℃

-29℃~180℃

 

KAITAI, with over 20 years experience, is one of the professional api 602 standard forged steel npt /sw /bw webge gate valve manufacturers and suppliers in China. All of our good equipments are made by professionals using advanced equipment. Welcome to buy with us.

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