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  • Cast steel valves
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  • Floating ball valves
  • Top entry ball valves
  • Wafer Check Valves
  • Forged steel valves
  • API 6D Plug Valves
  • Slab Gate Valves

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Check valves

Chenggao valve specializes in the development and production of valve products such as check valves in China. The check valves produced by chenggao have the characteristics of no external leakage, good sealing performance, small linear vibration, and small pressure drop. Swing check valve is the valve that automatically opens and closes disc based on the flow of the medium itself to prevent the medium from flowing backward.
Swing check valve is suitable for various pipelines of Class150 ~ Class2500 and PN20 ~ PN420 to prevent the medium in the pipeline from flowing backward. Chenggao swing check valve can be applied to various media such as water, steam, oil, nitric acid, acetic acid, oxidizing media, urea, etc. Swing check valve is generally connected by flange, but also by butt welded.

Product Features of Check Valve:

Standard Specification Check Valve
As a specialized check valve manufacturer and supplier in china, Swing type, Piston type, tilting type, wafer type are available from chenggao valve china.

Design and manufacturing standards: API 6D, BS 1868
Structure length standard: ASME B 16.10
Connection flange standards: ASME B 16.5.
Test standards: API 598, API 6D
Material: carbon steel, stainless steel, alloy steel, duplex steel
Application: petroleum, chemical, natural gas, petrochemical, coal chemical industries
Drive: None (Automatic)





Class 150 - 2500


2" - 36"