Forged Check Valves,RF,SW,BW,NPT,PSB,BB
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