The difference between the hydraulic test bench and the test bench

Generally speaking, the hydraulic test bench can be divided into two types: pump test bench and valve test bench. The test bench is mainly used to test new production or maintenance of old pumps. The main experimental pressure and flow are two major items. Volume control, constant power, constant pressure and other control functions. If the test bench is not demanding, only one large motor, one set of relief valve and high pressure throttle valve can be used. The throttle valve is closed to simulate the load, and the pressure level is divided into several pressure levels, for example, every 5 MPa. , 5 minutes per level test, etc. The test results are recorded by means of a pressure gauge and a flow meter. The test bed of the ordinary reversing valve is simpler, mainly the ability of the experimental valve to operate under high pressure, and observe whether the valve has external leakage. Only a small high pressure pump is needed, one valve plate is fine. However, the testing of special proportional valves and servo valves is much more complicated. The test bench and the experimental bench are not very clear. The test bench is mainly used for new product development, and the performance is relatively perfect. The test bench is used for factory inspection and the requirements are simple and reliable.