Check Valve Class 300|Check Valve Manufacturers in Mumbai,India|Usmani Valves
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Check Valve Class 300

Salient Feature

USMANI VALVES CO PVT LTD. Manufacturer Suppliers and Exporter of Swing Type Check Valves and Lift Type Check Valves. These NRV Non Return Valves are Bolted Cover Design, with Straight Type Body with Flanged ends and Screwed Ends. Swing Check Valves are Suitable for Horizontal flow or Vertical flow flowing from bottom to (Fluid Flowing Upward) Pipe Layouts.

Lift Type Check Valve Bolted Cover, Are Only Suitable for Horizontal Line.

Swing Type Check Valves with by Pass Arrangement Valve and With STL Seat to meet the Requirement for High Pressure and High Temperature Lines. Makes Swing Type Check Valves With Teflon Seated For Low Vacuum Line. The Disc is Highly Lapped for its Long Life.

A swing check valve or tilting disc check valve is check valve in which the disc, the movable part to block the flow, swings on a hinge or trunnion, either onto the seat to block reverse flow or off the seat to allow forward flow

A lift-check valve is a check valve in which the disc, can be lifted up off its seat by higher pressure of inlet or upstream fluid to allow flow to the outlet or downstream side. A guide keeps motion of the disc on a vertical line, so the valve can later reseat properly. When the pressure is no longer higher, gravity or higher downstream pressure will cause the disc to lower onto its seat, shutting the valve to stop reverse flow.


Design: API / British standard Straight Body and Cover Bolted
Material: CS ASTM A216 Gr. WCB, WC6,WC9,LCB, C12,C5,304,316, etc.
Disc & Seat: CS SS304.304L,SS316,316L,
Trims: F6 SS 304,304L, 316,316L, etc.
Rating: 300#
Ends conn. Flanged end, Butt weld / B16.25,B16.11, B16.5
Mfg. BS 1868 API 600
Testing: API 598 / BS 6755
Application: Oil & Gas, Water, Chemicals, Pharma, Air, Acid, Foods, Vacuum, Heat Treatment, Paper & Sugar Industries, Petrochemical industries
Joint Gasket: CAF/ B8 / Compressed Asbestos Fiber / SS 304 Spire Wounded With Caf
Special Type: With By Pass Arrangement Valve On Request