Yongjia Kosen Valve

API Cast Steel Bellow Seal Globe Valve

Product Description API cast steel bellows seal globe valves adopts the design of bellows seal. It completely eliminates the shortcoming of fast leakage of the ordinary valve stem packing seal aging. It not only improves the energy efficiency, increases the safety of production equipment, reduces the...

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Product Details

Product Description

1. Double seal design (bellows + packing) If bellows fail, stem packing will also avoid leakage and conform to international sealing standards.

2. no fluid loss, reduce energy loss and improve plant safety.

3. long service life, fewer maintenance times and lower operating costs.

4. rugged bellows seal design ensures zero leakage of stem and provides no maintenance conditions.

5. gas medium valve seat adopts PTFE soft sealing material to improve the sealing performance of the valve.

6. high temperature resistant or less than 425 degree valve seat adopts cone hard seal. Air tight performance zero leakage


Technical Specification
Normal Size Range: 2"-16"
Normal Pressure Rating: CLASS150~900  
Material: WCB,LCB,WC6,CF8,CF8M,CF3,CF3M
Temperature Range: -29°C~425°C


Standards compliance

Design: API6D,BS5351,ASME B16.34
Face to face: ASME B16.10,AP6D
End Flanges: ASME B16.5/ASME B16.47
Butt welded ends: ASME B16.25
Fire Safety: API607,API6A
Inspection and test: API 598,API6D


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