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Disc Check Valve

Salient Feature

Usmani Valves spring loaded disc check valves - non return valve feature a wafer type, compact and rugged design cast carbon steel (astm a 216 gr. Wcb) or stainless steel (astm a 351 gr. Cf8/cf8m/cf3/cf3m/ss304/ss316/ss304l/ss316l) construction and are suitable for any process liquid, air, gas, steam etc.

The single disc check valve (wafer type single disc check valve) consists of four main components: the body, a disc, a star guide and a spring. The disc check valves are opened by the pressure of fluid and closed through compression spring as soon as flow stops thus preventing reverse flow.

The design of wafer design, sandwich type, flangeless single disc spring loaded check valves allows them to be installed between any flanges of different standard and in any position; including vertical pipelines where the fluid flows downwards.

Wafer type spring loaded disc check valves is also available with zero leakage by the use of soft seat. Usmani valves has cover disk check valve up to 6” (dn150) size and pressure rating up to pn40.

Usmani valves a leading spring loaded disc check valve manufacturer, disc check valve exporter, stockist, importer, supplier. Flangeless - wafer - sandwich type disco check valves, non return valve - nrv.

Specification:

Body Astm a 361 gr cf8 | cf8m | cf3 | cf3m
Disc Ss 304 | ss 316
Spring Stainless steel
Spring retainer Aisi 304 | aisi 316
Seat Metal to metal | epdm | nitrile | ptfe
Insp & test std Api 598
Ends Wafer type for 15 mm to 200 mm
Screwed end for 15 mm to 100 mm
Hyd-test pressure Body : 854 psig (60 kg/cm ²)
Seat : 569 psig (40 kg/cm ²)
Size range 15 mm to 200 mm