Product

Forged Check Valves

Short Description:

Forged check valves

1- Forged Carbon Steel,Stainless Steel,Duplex,Special Materials

2- Flange ends and Butt Welded,Socket Welded and Threaded(NPT) Ends

3- Metal seated

4- Bolt Bonnet Welded Bonnet and Pressure Seal Bonnet

5- 150Lb & 4500Lb

6- -0.5”~2”


Product Detail

Product Tags

Product Description

Product description

forging check valve

Model

H11-Small forging check valve

Nominal diameter

NPS 1/4”~2”(DN8~DN50)

Operating temperature

-29℃~595℃(the range of service temperature may vary for different materials)

Nominal pressure

CLASS 150~4500 (PN 20~PN750)

Material

Main material: : F304、F316 、F51、B564 N04400、B546 N06625, A105、A350 LF2、 F11、 F22 etc

Design standard

BS 5352、ISO 15761、API 602、ASME B16.34

Structural length

ASME B16.10(flange type)、Company standard

Connecting end

ASME B16.25、ASME B16.11、ASME B16.5、ASME B1.20.1

Test standard

API 598

Operation method

electric, pneumatic drive unit 、Handwheel

Application fields

Oil and natural gas pipelines

Other remark 1

The valve stem thread will not come into contact with the medium, so the corrosion of medium to the thread is reduced.

Other remark 2

Small switching moment, reliable sealing

Other remark 3

The valve seat and the slide sealing surface are build-up welded with hard alloy to improve the scouring resistance and extend the service life of the valve

Other remark 4

pressure self-sealing or SS+ graphite or metallic seal or is adopted between valve body and bonnet for reliable sealing.

3E Engineering is available in three bonnet designs,the first design is the bolt bonnet,with male-female joint,spiral wound gasket,made in F304L/Graphite,ring joint gasket are also available on request,The second design is the welded bonnet,with a threaded and seal welded joint,on request a full penetration strength welded joint is available.the third design is the pressure seal bonnet,with a threaded and pressure seal bonnet joint,all designs are available flange ends,butt welded ends and socket welded ends and threaded ends,

Full port or Conventional port

Piston check

Ball check

Swing check

Spring available on request


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