What is a check valve?

What is a check valve?

Exhaust check valve is an automatic on-off valve with a valve disc or rocker arm on the valve body. When the medium flows in the direction of flow, the valve disc or vibrating plate is lifted and opened. When the medium flows in the opposite direction, the valve disc or vibrating plate automatically closes, hence the name check valve.
What are the uses of check valves?
The check valve is installed in the pipeline system, and its main function is to prevent the reverse flow of the medium. The check valve is an automatic opening and closing valve under the pressure of the medium. Card type check valves are suitable for various pipelines with nominal pressures ranging from PN1.0 to 42.0 MPa, grades ranging from 150 to 25000, nominal diameters ranging from DN15 to 1200 mm, NPS1/2 to 48, and working temperatures ranging from -196 to 540 ° C, to prevent medium backflow.

What is the process of a check valve?
The research and design of check valve process can be edited. (1) Quality management control of the main blank. All parts of this valve are forgings, and forging must be strictly carried out in accordance with the forging process specifications and process cards. The initial forging temperature, final forging temperature, degree of deformation influence, and deformation development speed must be strictly controlled internally. Cooling analysis and cooling should be carried out according to the cooling method specified in the process specifications