Multifunctional pump control valve is from the main valve and the appearance of annexes, the main valve from the valve body, diaphragm (piston-cylinder), stem component, the main valve plate, high pressure ball valve valve seat and other major components composed mainly controlled exterior accessories valves, filters, emptying valve, micro valve, which valve is specially designed micro-parts, in their only set back to the direction of flow of holes is limited.In pump operation, the first manual control patch connectivity control room (piston-cylinder) control valves and venting valve, China globe valve so that the pressure P3 or P4 equal to zero, SEO a one-way pressure diaphragm pressure plate or piston can check the valve plate open and close of . The valve is turned on, China valve manufacturerdue to slow-closing valve plate up, the main water valve plates have been cast aside and the realization of open movements.

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