Check Valves

Oswal Industries Limited is world's leading manufacturer of Check Valves Manufacturer

Oswal's Check Valves

Check Valves - Heavy Duty, Bolted Cover, Renewable Seat Ring, Body Mounted Disc Swing Type

Check valve opens automatically by the line fluid pressure and closes by the gravity. Back pressure of the line fluid also facilitates the sealing. Swing Check valves are normally designed for horizontal installations. However, it can be installed vertically also with suitable direction, after studying the application. There is no rubbing between Disc and Seat ring resulting longer life. Check valve is also recommended for critical applications such as Hydrocarbons, Severe service, Cryogenic, Hydrogen, Oxygen, NACE etc. They are available in wide range of sizes and in exotic materials.

Valves are marked with flow direction for proper installation in the pipeline. Check valves can also be supplied with counter weights and dash pot arrangement depending upon the condition and request.

Product Range

Cast and Forge Check Valves

Valve Type Class Rating Size Range
Swing Check 150# 2" to 36"
Swing Check 300# 2" to 36"
Swing Check 600# 2" to 32"
Swing Check 800# 1/2" to 2"
Swing Check - Pressure Seal 900# 1/2" to 20"
Swing Check - Pressure Seal 1500# 1/2" to 20"

Technical Specification

Design Standard

BS 1868

Face to Face

ANSI B16.10

Pressure & Temperature Chart

ASME B16.34

Testing Standard

API 598 / EN 12266

Flanged End

ASME B 16.5

Butt Weld End

ASME B 16.25

Valves can be supplied with Socket weld and Screwed ends as per the standards


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