NSV forged steel check valves are designed and manufactured to provide maximum service life and dependability. Forged check valves can be full port or reduced port as per requirements of customers. Valves are available in a complete range of body/bonnet materials and trims.
Applicable Standard
Design Standard: API 602, ASME B16.34, BS 5352
Face to Face: ASME B16.10, EN 558, DIN 3202
End Flange: ASME B16.5, DIN2533
Buttwelding Ends: ASME B16.25, DIN3239
Socket Welded Ends: ASME B16.11
Threaded Ends: ASME B1.20.1
Inspection and Test: API 598
Products Range
Size: 1/2" ~ 2"(DN15 ~ DN50)
Rating: ANSI 150lb ~ 2500lb
Body Materials: A105,LF2,F9,F11,F22,F304,F304L,F316,F316L,F321,F51, Alloy Steel,etc.
Trim: Per API 600
Design Features
Full port or reduced port design
Swing or Piston / lift type
Bolted bonnet, welded bonnet, or pressure sealed bonnet
Flanged, butt-welded, socket- welded, or threaded ends
Optional Y-type structure
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