
Full Open Flanged Forged Lift Swing Check Valve
Our personnel are always inside the spirit of 'continuous improvement and excellence', and together with the outstanding excellent goods, favorable price and good after-sales services, we try to gain every customer's trust for Ball Valves, Inconel 625 Check Valve, Pneumatic Actuator Butterfly Valve. Our products enjoy a high status among consumers, and our company has established long-term and stable cooperative relations with many retailers and agents. We, as always, provide you with satisfactory products and services. Our corporate quality of 'integrity-based, showing the charm of business personality' is the best promise to customers. We have been willing to establish long business relationship with all those who seek the high quality products and good service. With preferential prices and high-quality services, we hope to satisfy customers and achieve a win-win situation.
Product Details
NSV Forged Lift Check valves(Piston Check Valve or Ball Check Valve), like all check valves, are used to prevent back flow in the line. Standard valve design has no spring in order to minimize cracking pressure and pressure drop, it will only function properly when installed in a horizontal line. As an option the designs can include a spring to assist closing and for use in 90-degree styles installed in vertical lines.
Plicable Standard
Design Standard: API 602, ASME B16.34, BS 5352, DIN3352
Face to Face: ASME B16.10, EN 558, DIN3202
End Flange: ASME B16.5, DIN2533
Butt welding Ends: ASME B16.25, DIN3239
Socket Welded Ends: ASME B16.11
Threaded Ends: ASME B1.20.1
Inspection and Test: API 598, DIN3230
Products Range
Size: 1/2" ~ 2"(DN15 ~ DN50)
Rating: ANSI 150lb ~1500lb
Body Materials: A105,LF2,F91,F11,F22,F304,F304L,F316,F316L,F321,F51,Alloy steel etc.
Trim: Per API 602
Design Features
Full port or reduced port design
Plug/Ball 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-COVER CONNECTION:WELDED-COVER
NSV welding procedures are performed by operators qualified acc.to ASME IX.
NSV Weld Bonnet Valves are supplied in the standard type threaded in and fillet welded bonnet as per.”B” version.On request Full Penetration Welding as per “A” version can be supplied.

FAQ
1.Q: What’s the valves warranty?
A: Our valves warranty period should be 18 months from the date of shipment or 12 months after installation, whichever occurs first.
2. Q:What’s the packing for shipping?
A:Its carton for small valves(sample) and plywood case(don’t to fumigate).
3.Q:Is there have MOQ?
A:No.we can accept 1set,but there have additional cost $150.00(process of export) if the order value within $2000.00.
Through systematic deployment around higher-end strategies, we have more strength and ability to provide Full Open Flanged Forged Lift Swing Check Valve that satisfy consumers. Our company has set up for several years and we have fully utilized our resources in many aspects to develop the technology to cope with our business. All things in the world are made great and noble because of responsibility. Therefore, we have always regarded responsibility as the cornerstone of our company's ethics and behavior.
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