Piston Check Valves

The piston check valves (also known as lift check valves)comprise of a plug which is lifted by upstream pressure and returned onto its seats by gravity/higher downstream pressure to stop the back flow.

We offer OMB/Vogt piston check valves for various industrial applications incl. cryogenics where no slamming is required. OMB standard design are forged acc. to API 602/ ISO 15761 and are supplied with spring making their installation possible in vertical and horizontal directions.

Size Range 1/4″ – 2″ / DN 8- DN50
Pressure Rating 150lb-2500lb / PN25-PN420
Design Temperature -196C to +538C / -320F to + 100
Materials Carbon, Alloy and Stainless steel, Duplex and Super duplex, 254SMO, other special alloys
Technical Features Full and reduced bore
Obturator with soft sealing system (PCTFE)
Obturator sealing system Metal to Metal, upon request
Design Configurations We can offer lift check valves in all body styles such as:

Double Flanged (DF)
Butt-Welded (BW)


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