Nozzle Check Valve are designed and manufactured strictly to International Standards API 594 or Equivalent, reduce the flow resistance and pressure drop to the minimum possible extend, which is suitable to be mounted in horizontal position only, lapped and screwed in seat ring ensures tight shut of and long duration service. Valve’s disc is perfectly designed, accurately machined and guided for efficient automatic shut off at zero pressure, with a feature of compact structure & Low emission service.
Nominal Diameter: 1/2" - 48"(DN15 - DN1200)
Pressure Range: Class 150 - 2500(PN16 - PN420)
Working Temperature: -29℃ - +425℃
Body Material: Carbon Steel, Stainless Steel, Alloy Steel, Bronze
- Design & Manufactured to API 6D
P.T Ratings to ASME B16.34
- Face to Face Dimensions to API 594
- Flanged Ends to ASME B16.5
- Butt-weld Ends to ASME B16.25
Threaded Ends to ASME B1.20.1
- Socket-weld Ends to ASME B16.11
Valves Marking to MSS SP-25
- Inspect & Tested to API 598
Structured in Bolted Cover
Pressure Ratings from Class 150 to Class 1500, PN16 to PN260
Ends Connections in Flanged R.F or RTJ, Butt-welded and Grooved
Sizes Ranges from 1/2” thru 2” for Forged Items, and 1 1/2” to 60” for Casted.
Body Materials available in Carbon Steel A216 WCB, WCC, Low Carbon Steel LCB, LCC, Alloy Steel A217 WC6, WC9, Stainless Steel A351 CF3, CF8, CF3M, CF8M, Duplex & Super Duplex Steel A890 GR. 4A, GR. 5A, Special Materials in Monel, Alu. Bronze C95800, 95600 etc.
Trim Materials available in 13%Cr, F11, F22, SS304, SS304L, SS316, SS316L and other specials
Optional Bypass system & Counter-weight Assembly.
Equipped with a professional factory, Naibang Valve is a professional manufacturer and supplier of nozzle check valve in China. If you want to buy quality product of various beautiful bags, you can get it at a cheap price from us.