What is the reason why the four-column hydraulic press does not maintain pressure?

In fact, it is not that the four-column hydraulic press itself has poor pressure-holding ability, but under the influence of some factors, it often occurs that the pressure is not maintained. In this regard, let's analyze the reasons.

In order to determine the reason why the four-column hydraulic press does not maintain pressure, it can be judged by the corresponding test. If the pointer of the pressure gauge becomes zero immediately after letting go, it means that the equipment is the oil cylinder piston; if the handle is released, the pressure becomes If it is zero, it can be concluded that the oil pump rotates in the wrong direction. After correcting the direction of rotation, check the circuit of the device; if the problem is not solved, then you need to check the two solenoid valves that control the pressurization and pressure relief, it is very likely that these two valves are the problem. In the four-column hydraulic press, the valve is the main pressure maintaining component. If the valve is not closed tightly, the pressure cannot be maintained.

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