working principle

The pilot valve is controlled by the water force, so that the main valve automatically discharges part of the water to stabilize the set pressure of the pipe before the valve. When the pressure returns below the set pressure, the main valve is automatically closed, and the pressure relief and holding pressure of the valve are within a certain range. You can adjust.

Characteristics

It has four functions: stop valve, check valve, electric valve and water hammer canceller. It is especially suitable for supporting dynamic control system. It does not need electrical controller and external power, and automatically opens and closes according to the routine. It has three functions of preventing and eliminating water hammer, which can effectively improve system safety. reliability. Meet the requirements of system engineering equipment automation control.