Working pressure A or B port pressure rated pressure --PN = 35MPa maximum pressure --Pmax = 40MPa A, B port pressure is no greater than 63MPa repair hydraulic pumps, oil inlet pressure on each side of the housing pressure up to 40MPa ● Allow up drain pressure (T ports) - Pabs = 0.2MPa ● working medium and conditions: mineral oil: 40 low pour hydraulic oil Working temperature: -25 ℃ -80 ℃ viscosity range: 10 ~ 1000mm2 / s (10,1000mm2 / s optimum viscosity for short-term use): 16 ~ 25mm2 / s recommended filtering accuracy 10μm, coarse filter 25 ~ 40μm pump can also be used domestically, but with 10μm filter prolong the life of the motor oil. Achieved by a valve-controlled injection molding machine hydraulic system to pump control changes, so conventional throttle speed control system into a proportional speed control system, control performance machine with new improvements and enhancements. Specifically, the proportion of variable displacement pump system in addition to the advantages of the conventional proportional control system, but also has the following advantages: the same power machine pump sales, the injection speed can be increased by more than 25%, more adapted to the requirements of thin-walled precision injection. Since ordinary PQ system power calculations to dwell state standards, the proportion of variable pump system at the time of this operation is very low power consumption, and thus pump displacement can increase more than 25%; reduce system heat, extend the service life of hydraulic components. Almost no throttling proportional variable system, overflow losses, the system is running fever greatly reduced. Not only save cooling water consumption, low oil sealing element life is greatly improved; reduce energy consumption, improve system efficiency; create a hydraulic pump sales _ crystal shelf (certified) _ pumps from Jinan Jing Chong Hydraulic Machinery Co. offers . Jinan Jing Chong Hydraulic Machinery Co., Ltd. (www.jnjcyy.com) (www.jnjcyy.com) Shandong Jinan, mining machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. In the crystal creating hydraulic leadership with the staff warmly welcome all inquiries negotiations to create the crystal creating hydraulic better future.