The hydraulic regulating valve test bench of model YFS-D is a kind of special equipment specializing in performing shell test, seat test and spillage test of regulating (control) valves. As far as the process line of spillage test, the test bench is equipped with water tank, multistage pump, precision pressure gauges etc. And the spillage can be tested in the state of low and constant pressure according to customers′ technical requirements. As for the testing range and the model selection, please refer to relevant technical information of the hydraulic welded valve test bench of model YFS-D.