Check valve belongs to a kind of automatic valve, its main role is to prevent the backflow medium, to prevent the pump and drive motor reversal, and the discharge of the container medium. Check valve can also be used to give the pressure could rise to more than the system pressure of the secondary system supply piping.

Scope of application:

Flange connection lift check valve is suitable for the nominal pressure PN1.6 ~ 10.0 Mpa, the working temperature - 29 ~ 450 ℃ in the petroleum, chemical, thermal power plant, etc all kinds of medium and small diameter pipe under control through all kinds of pressure, temperature and medium or medium truncated line of opening and closing device. Applicable medium: water, oil, steam, etc.

1. Check the product design and manufacturing design and manufacture according to GB/T 12235, reliable sealing, good performance.

2. The disc and seat sealing surface using department too vertical (stellite) cobalt-based hard alloy surfacing and become, wear-resisting, high temperature resistance, good abrasion resistance, long service life.

3. Can be used in a variety of pipe flange and flange seal face type, can meet the needs of all kinds of engineering and the user requirements.

4. The valve body materials, variety complete, packing and gasket reasonable selection according to the actual working condition or the user requirement.