Yongjia Kosen Valve

Flanged End Pressure Seal Check Valve

Product Description KOSEN Flanged End Pressure Seal Check Valves is used to prevent back flow in the line .Flow is in a straight line through the valve resulting in minimal pressure drop . The disc swings into the open position as the media flows through the line .Back pressure in the line holds...

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Product Details

Product Description

When the medium flows in the prescribed direction, the disc is subjected to the medium force. When the medium is turned on, the disc is closed because of the weight of the disc and the disc is subjected to the reverse force of the medium, so that the sealing surface of the disc and the valve seat is closed to prevent the medium from flowing back. The sealing surface of the valve body and disc is welded by stainless steel surfacing.


Technical Specification
Normal Size Range: 1/2"- 2"
Normal Pressure Rating: PN100~PN420, CLASS600~2500  
Material: A105,LF2,F11,F22,F304,F304L,F316,F316L
Temperature Range: -29°C~425°C

Standards compliance

Design and Manufacture: API602

Face to face(end to end): ASME B16.10

Flanged connection: ASME B16.5

Butt welded end: ASME B16.25
Socket-Welding Ends: ASME B16.11

Screwed Ends: ASME B1.20.1

Test and inspection: API598


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