Knowledge

In order to ensure the reliable sealing quality of the new production valve and the valve after inspection and maintenance, the final process after the valve production and valve d

Appearance pneumatic actuator check. The valve surface should be free of defects and cracks, and the valve body has no bursting phenomenon;

Main functional principle: The valve flange end face is positioned, the hydraulic claw holds the valve flange back pressure sealing method, and the axial compression and relaxation

The valve test bench is easy to open and close, quick and labor-saving, and has low fluid resistance and can be operated frequently.

The open orientation should be determined according to the rotation viewpoint of the valve test bench.

Forging production is carried out in the hot state of the metal (for example, the forging temperature range of low carbon steel is between 1250 and 750 °C). Due to a large amount o