How to choose the speed of the hydraulic pump? How to start the    Hydraulic Pumps    at different temperatures? China hydraulic pump manufacturer, supplier & Zhejiang Yongling Hydraulic Machine Co , Ltd . elaborated:

First, the speed of the hydraulic pump

The flow rate of the hydraulic pump is the product of the displacement V per revolution of the pump and the speed n. If the speed n of the pump is selected too low, the output flow rate Q will be too small, the oil supply of the system cannot be guaranteed, and even the centrifugal force is insufficient or a certain degree of vacuum cannot be formed to suck oil (such as a vane pump).

If the rotation speed is too high, the output flow rate Q will increase, but when the rotation speed is selected too high, a suction phenomenon will occur in the pump suction process, resulting in insufficient oil suction, but the flow rate will be reduced, and noise, Vibration and aggravation of wear and tear, it can be seen that the speed of the hydraulic pump must not be too low or too high. In general, it is advisable to work at the speed given on the product catalog.

Second, the start of the hydraulic pump

1. Start at light load or no load at low temperature, and resume normal operation after the oil temperature is normal. Generally, when the oil temperature is lower than 10 ℃, it should be loaded with no load for more than 20min; if the temperature is below 0 ℃ or above 35 ℃. It should be heated or cooled; when starting in cold areas or winter, the oil temperature should be raised above 15 ℃ to be able to load; starting at -15 ℃ is not allowed.

2. It is strictly forbidden to charge cold oil into hot components or hot oil into cold components during work, so as to avoid the temperature difference being too large, the expansion or contraction may cause biting. In winter or cold areas, if an electric heater is used to heat the oil in the oil tank, the pump and motor are still cold, which can cause seizure. Pay special attention when using it.

Zhejiang Yongling Hydraulic Machinery Co., Ltd. is a professional hydraulic pump manufacturer and supplier in China. Welcome to buy our hydraulic pump: https://www.china-vanepump.com/product