The hydraulic pump is the power component of the hydraulic system, which is driven by the engine or motor, sucks the oil from the hydraulic oil tank, forms the pressure oil to discharge, and sends it to the actuator. According to the structure, the hydraulic pump is divided into gear pump, plunger pump, vane pump and screw pump.
Hydraulic valve is a kind of automatic component operated by pressure oil. It is controlled by pressure oil of pressure valve. It is usually used in combination with electromagnetic pressure valve. It can be used for remote control of on-off of oil, gas and water pipeline system in hydropower station. Commonly used in clamping, control, lubrication and other oil circuits. There are direct acting type and pilot type, multi-purpose pilot type.
