
Different Standard Forged Steel SS304 CF8 Lift Check Valve 150lb 300lb 600lb
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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.
Over the years, our company's products have been widely praised by users, and customer satisfaction has been increasing year by year. We take the development of the Different Standard Forged Steel SS304 CF8 Lift Check Valve 150lb 300lb 600lb industry as our responsibility and serve our customers wholeheartedly. Our company continuously develops and researches new products to meet market demand when exporting sophisticated products. All along, we closely follow the development trend of the industry and have a deep understanding of the current situation and trend of the industry.
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