Hydraulic valves test bench is usually adopts cabinet type structure, hydraulic test systems, hydraulic

testing sensors, oil recovery system installation inside ark, test surface with pressure gauge, switch of

pressure, measuring instruments, test pieces once connected oil mouths and test platform, convenient

connection was try components, and obtain the measuring parameters, and facilitating the site test

process and parameter variations observed. Test parameters through sensor, data acquisition and

industrial PC realize static and dynamic data acquisition, processing, printing pressure loss curve,

internal leakage curve, the relief valve pressure characteristic curve, reversing valves budge

characteristic curve and relief valve transient response characteristic curve, the test reports and data

management, etc.