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Check valve  

H41H lift check valve
H41H lift check valve

Lift check valve is to rely on the flow of the medium itself automatically open and close the valve flap, flap valve deadweight and rely on fluid pressure automatically to prevent fluid backflow valve media, also known as check valve, check valve, reversing valve, and back pressure valve. Check valve is an automatic valve, the main role is to prevent the media back, to prevent reverse pump and drive motor, and discharge the container medium. Check valve can also be used for the pipe to the pressure may rise to pressure of the auxiliary system supplies more than the system.

Application range:
Flanged lift check valve for the nominal pressure of PN1.6 ~ 16 Mpa, temperature -29 ~ 550℃oil, chemical, thermal power plant and other various small caliber pipeline, all kinds of pressure, temperature and medium control connect or disconnect the line media opening and closing device. Suitable medium: water, oil, steam, etc..

Structural characteristics:
The 1 check valve product design for manufacturing test, according to the GB/T 12235 design, reliable sealing, excellent performance.
2, the valve seat sealing surface with Stellite ( Stellite ) cobalt-based alloy cladding made of wear-resistant, high temperature resistance, abrasion resistance, good performance, long service life.
3 can adopt a variety of standard piping flanges and flange sealing surface, to meet a variety of needs and user requirements.
4 valve material range, packing, gasket according to the actual conditions or user requirements of reasonable matching, can be applied to all kinds of pressure, temperature and medium conditions.
5 can be made different forms of structure and connection forms according to user requirements check valve, used for a variety of equipment.

Standard Specification for:
Design and manufacturing standards: GB/T 12235-2007
The structural length standard: GB/T 12221-2005
The connecting flange standards: GB/T 9113
Pressure - temperature rating: GB/T 12224-2005
Testing standard: GB/T 13927-2008

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