Yongjia Kosen Valve

Pressure Seal Check Valve

Product Description KOSEN Pressure Seal Check Valves is a valve which is automatically opened and closed by the flow of the medium itself. It is used to prevent the reverse flow of the medium. It is also called the reverse check valve, the one-way valve, the countercurrent valve and the...

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Product Details

Product Description

1. the valve cavity adopts a pressure self tightening seal structure. The higher the medium pressure, the better sealing performance.

The two ends of the 2 branch pipes are butt welded to meet the requirements of different takeovers.

3. The sealing surface of disc and seat is made of Stellite cobalt-based cemented carbide surfacing, which is wear-resistant, high temperature-resistant, good abrasion resistance and long service life.

4. high temperature and pressure resistant parts are made of high quality heat resistant alloy steel. They are safe, reliable, stable in performance and long in service life.


Technical Specification
Normal Size Range: 2"-20"
Normal Pressure Rating: PN100~PN420, CLASS60~2500  
Material: WCB,LCB,WC6,CF8,CF8M,CF3,CF3M
Temperature Range: -29~425Degree C

Standards compliance

Design and Manufacture: ANSI B16.34,API 6D,BS1868

Face to face(end to end): ANSIB16.10,API 6D

Flanged connection: 2"~24" to ANSI B16.5

Butt welded end: ANSI B16.25

Test and inspection: API 598,API 6D

A.Back up ring: Absorbs thrust applied by internal pressure.

B.Thrust ring: Pretects the soft metallic gasket from detemation.

C.Gasket Unique angutar design provides superior sealing.


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