Two common solutions for abnormal output pressure of plunger pump for filter press

Common problem of the special plunger pump for filter press 1: The output pressure is too low. When the pump is in the self-priming state, if the oil inlet pipe leaks or the hydraulic cylinder, one-way valve, reversing valve, etc. in the system have large leakage, both Will make the pressure not rise.
Zhongtuo plunger pump solution: find out the leak, tighten and replace the seals to increase the pressure. If the overflow valve is faulty or the adjustment pressure is low, and the system pressure cannot rise, the pressure should be readjusted or the overflow valve should be overhauled. If there is a large amount of leakage between the cylinder body of the hydraulic pump and the valve plate, in serious cases, the cylinder body may be broken, the mating surface should be reground or the hydraulic pump should be replaced.


plunger pump

Common problem of special plunger pump for filter press 2: The output pressure is too high. If the circuit load continues to rise, the pressure of the pump also continues to rise, which is normal.
Zhongtuo plunger pump solution: If the load is constant and the pressure of the pump exceeds the pressure required by the load, check the hydraulic components other than the pump, such as directional valve, pressure valve, transmission device and oil return pipeline. If the pressure is too high, the overflow valve should be adjusted.

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