Second, the main performance parameters of the hydraulic pump 1, the pressure (1) working pressure of the hydraulic pump output pressure when the actual work is called work pressure. Working pressure loss depends on the pressure and the exhaust pipe of the size of the external load, regardless of the flow rate of the hydraulic pump. (2) Rated pressure pump under normal operating conditions, the maximum pressure according to the test standards for continuous operation called hydraulic pump rated pressure. (3) The maximum allowable pressure in excess of the rated pressure conditions, according to the test standards for hydraulic motors transformation, to allow the maximum pressure of the hydraulic pump hydraulic motor short run plant installation, called pump the maximum allowable pressure, power and efficiency (1) the power loss of the hydraulic pump hydraulic power losses have volume loss and mechanical loss of two parts: l) Volume loss volume loss refers to the loss of the flow of the hydraulic pump, the actual output of the pump flow is always less than the theoretical flow, its main due to leaks, the oil inside the compression pump high-pressure chamber and the suction in the suction process due to too much resistance, high oil viscosity and pump speed reasons which led to higher oil not all work full seal chamber. Volume loss of the hydraulic pump volumetric efficiency, which is equal hydraulic flow ratio of actual output to its theoretical flow q qt, namely the actual pump output flow q is a hydraulic motor parts | hydraulic motors | hydraulic Chong Chong Jing Jing from Jinan Hydraulic Machinery Limited. Jinan Jing Chong Hydraulic Machinery Co., Ltd. (www.jnjcyy.com) (www.jnjcyy.com) strong, credible, in Jinan, Shandong mining machinery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead crystal create hydraulic and you hand into the brilliant, for a better future!