
Forged Steel Swing Check Valve
We have been ISO9001, CE, and GS certified and strictly adhere to their good quality specifications for Y Pattern Globe Valve, Monel 400 Globe Valve, C95800 Ball Valve. Through continuous progress, innovation, and development, our company has made our products the trusted choice of users with good performance, reasonable prices and considerate services! Our company adheres to the principle of honesty, pragmatism and win-win, looking forward to working with you to create a better future. Your support is our eternal power!
Product Details
NSV Forged Swing Check valves,its produced one piece that’s stronger than an equivalent casted parts.like all check valves, are used to prevent back flow in the line. The pressure of the fluid passing through a system opens the valve, while any reversal of flow will close the valve. The swing check valve functions by allowing flow forces to move the closure element, it is a hinged clapper which swings or rotates around a supporting shaft.

Design Features
Full port or reduced port design
Swing disc
Bolted bonnet(B.B),Welded bonnet(W.B),Pressure Seal Bonnet(P.S.B) also available.
Flanged, butt-welded, socket- welded, or threaded ends

Standard Material Specifications
| NO. | Part Name | CS to ASTM | AS to ASTM | SS to ASTM | |
Type A105 | Type F22 | Type F304(L) | Type F316(L) | ||
1 | Body | A105 | A182 F22 | A182 F304(L) | A182 F316(L) |
2 | Piston Disc | A276 410 | A276 304 | A276 304(L) | A276 316(L) |
3 | Gasket | Corrugated SS + graphite | SS + PTFE | ||
4 | Bonnet | A105 | A182 F22 | A182 F304 L | A182 F316(L) |
5 | Nameplate | SS | |||
6 | Bolt | A193 B7 | A193 B16 | A193 B8M | A193 B8M |
7 | Ball | A182 F304 | A182 F304 | A182 F304 | A182 F304 |
Suitable Medium | W.O.G.etc | W.O.G.etc | HNO3CH3OOH etc | ||
Suitable Temperature | -29℃~425℃ | -29℃~550℃ | -29℃~180℃ | ||
Note: Other materials are available upon request. CS=Carbon Steel; AS=Alloy Steel; SS=Stainless Steel.
BODY-BONNET CONNECTION:BOLTED-BONNET
NSV Standard construction of boy-bonnet connection is bolted,with s apiral wound gasket to seal the connection.
On request we offer as well Ring Joint connection,Ring Joint that’s for high pressure on class 2500lb bolted bonnet,als on request on other

FAQ
1.Q: What’s the brand of your company can supply ?
A:NSV or OEM service
2.Q: Do u provide sample,is it free or extra ?
A: Yes, we could offer the sample, due to its value,we can supply free sample that small value and you afford the freight,but also welcome visit our factory to inspect quality.
3.Q: What’s your payment terms?
A: As our company’s policy, we normally have bellow 3 payment terms,it also can negotiation both parties before confirm order.
1) 100% T/T or West Union in advance that order value within $2,000.00USD.
2)30% T/T advance+70% balance after the shipment for the order value above $2,000.00USD.
3)L/C at sight for the order value above $50,000.00USD.
We are a modern enterprise with many years of experience in the production of Forged Steel Swing Check Valve. We are equipped with advanced equipment and testing equipment to provide users with more advanced and reliable products and better services. Our company adheres to the concept of 'innovation driven, passion surpassing, unique luck, ingenuity, intensive cultivation', and gradually formed an advanced product quality assurance system, a complete marketing service network, and the production capacity increased year by year. We welcome new and aged buyers from all walks of lifetime to make contact with us for potential small business associations and mutual success!
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