Pressure Seal Check Valve

Pressure Seal Check Valve Fabricator in China: Pressure Seal Check Valve, 1/2-4 Inch, Class 1500-2500 LB, API 602, ASME B16.34, BS 5352, SW, BW, RF End.

UNIQUE Valve Company are available in forged steel check valve in three kinds bonnet design-Bolted Bonnet, Welded Bonnet and Pressure Sealed Bonnet.

Size: 1/2 Inch - 4 Inch.
Pressure Rating: Class 1500 - 2500 LB.
Material: ASTM A105, ASTM A182 LF2, ASTM A182 F304, ASTM A182 F316, ASTM A182 F304L, ASTM A182 F316L, ASTM A182 F321, ASTM A182 F51, ASTM A182 F53, ASTM A182 F55, INCONEL, ASTM A182 F11, ASTM A182 F22, ASTM A182 F5, ASTM A182 F9, ASTM A182 F91.

Construction Features:
Pressure Sealed Bonnet.
Forged Steel, Piston, Ball or Swing type.
Integral Body Seat for Piston and Ball Check valves.
Separated Seat Ring design for swing check valves.
Spiral Wound Gasket or Oval Ring Joint gasket.
Reduced Bore or Full Port.
T-Pattern or Y-Pattern.
Socket Welded, Threaded, Butt Welded, Flanged End.

Application Standard:
API 602, ASME B16.34, BS 5352.
Testing according to API 598.
Marking to MSS SP25.
Socket Welded Ends to ASME B16.11.
Screwed Ends to ASME B1.20.1.
Butt Welded Ends to ASME B16.25.
Flanged Ends to ASME B16.5.