What are the operating pressure, rated pressure, and maximum allowable pressure of a hydraulic pump?

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1. Operating pressure: The output pressure of a hydraulic pump during actual operation is referred to as the operating pressure. Working pressure depends on the magnitude of the external load and the pressure loss in the oil discharge pipeline, and is independent of the flow rate of the hydraulic pump. 2. Rated pressure: The highest pressure at which a hydraulic pump can operate continuously under normal operating conditions, as specified by the testing standards, is referred to as the rated pressure of the hydraulic pump. 3. Maximum allowable pressure: The highest pressure at which a hydraulic pump is allowed to operate for a short period of time, as specified by the testing standards, when the pressure exceeds the rated value. This value is known as the maximum allowable pressure for the hydraulic pump; exceeding this pressure causes the pump’s leakage to increase rapidly.