Acting hydraulic system is increased by varying the pressure force. A complete hydraulic system consists of five parts, namely, power components, actuators, control components, auxiliary components (attachment) and hydraulic oil. Hydraulic system can be divided into two categories: the hydraulic drive system and hydraulic control system. Hydraulic drive system to transmit power and motion as the main feature. Hydraulic control system will make the output of the hydraulic system to meet specific performance requirements (especially dynamic performance), commonly referred to as hydraulic systems mainly refers hydraulic transmission. When using a metering pump (displacement immutable) is not connected in series with the pressure control valve cylinder load, so long as the pump speed is constant, in theory, the pump pressure is dependent on the size of the load pressure (of course, the load pressure must not exceed the main security system valve set pressure, but can not exceed the rated pump pressure), so that the output flow of the pump will not change due to changes in pressure. In using the variable displacement pump (variable displacement) is not connected in series with the pressure control valve cylinder load, as long as you are within the hydraulic control system to take the load-sensing system, or power control system, then the pump inlet maintenance, load pressure import agent is relatively small hydraulic pump, pump output flow generally large, on this basis, import pump repair phone, the load becomes large, will make smaller hydraulic pump output flow, which is inversely proportional to the pressure and flow have a tendency like upstairs said, depends on pressure and flow characteristics. Sales of imported hydraulic pumps, hydraulic pumps, hydraulic pressure from Jinan Jing Jing Chong Chong 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 continuous improvement to create innovative ideas will lead crystal hydraulic and you hand into the brilliant, for a better future! You can also access (www.jnjcyy.com/supply_details_51402190.html), for more information about the company.