API 602 Forged Steel Valve

API 602 Forged Steel Valve

Short Description:

Gate Valve, Forged Steel, API 602, Full port and conventional port optional,Bolted bonnet; welded bonnet; or pressure seal bonnet

Key Specifications / Features

Full port and conventional port optional

Outside screw and yoke (OS & Y)

Solid wedge (disc)

Renewable seat ring 

Non-rising handwheel 

Bolted bonnet; welded bonnet; or pressure seal bonnet

Integral backseat

Two piece self aligning packing gland 

 

Standard

Design - API 602/ASME B16.34 

Face to face dimension - ASME B 16.10 

Socket welding end - ASME B 16.11

Threaded end - ASME B B 1.20.1 

Butt welding end - ASME B 16.25

Flange end - ASME B 16.5

Inspection - API 598 

forged steel gate valves drawing

Material List of Forged Steel Gate Valves

No.

Part name

Carbon Steel

Stainless Steel

Alloy Steel

1

Body

A105

A182 F304

A182 F11/F22

2

Seat

A182F6a

A182 F304

A182 F11/F22

3

Wedge

A182F6a

A182 F304

A182 F6a

4

Stem

A276-410

A276-304

A276-410

5

Gasket

Graphite+304

Graphite+304

Graphite+304

6

Packing

Graphite

Graphite

Graphite

7

Gland

A105

A182 F304

A182 F11/F22

8

Stem nut

A193 B7

A193 B8

A193 B16

9

Handwheel

A216-WCB

A351 CF8

A216-WCB

10

Sealing ring

Graphite

Graphite

Graphite

11

Yoke

A193 B7

A351 CF8

A276-410

12

Bonnet

A216-WCB

A193 B8

A193 B7

13

Bolt

A276-410

A276-304

A216-WCB

14

Eye blot

A197

A197

A197

15

Stem Bushing

A276-410

A276-410

A276-410

 

 

Remarks:

1. Select different materials for different working temperature and media.

2. Trim materials and recommended service coverage referred to Appendix.

 

Connecting Form Between Valve Body and Bonnet

 The connecting forms between valve body and bonnet of our forged steel valve include three kinds: bolt connection bonnet, welded bonnet and pressure seal bonnet (Shown as the following figure). The choices of structure form are shown as in the table. The specific forms chosen by customers should be given for the order.

body bonnet connection types

 

 

Pressure Rating
Connection Forms Between Body & Bonnet

Mpa

Class

Bolted Bonnet

Welded Bonnet

Pressure Seal

1.6~10.0

150~600

Yes

Yes

 

14.0

800

Yes

Yes

 

16.0

900

Yes

Yes

Yes

26.0

1500

Yes

Yes

Yes

42.0

2500

 

Yes

Yes

 

 

Range of API 602 Forged Steel Gate Valves

Body Material - Carbon Steel/Stainless Steel/Alloy Steel

(Forged Steel, such as A105N, LF2, F304, F316, F11, F51, F91, F347 etc.)

Trim Material - API 600 Trim number 1 to 17

End Connection - Flange/SW/Thread/BW

Pressrue Rating - Class 150, 300, 600, 800, 900, 1500, 2500 

Size - 1/2"-2"

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