JLT vertical type hydraulic valve test bench, the test will be tested at one end of the valve flange on the machine's working table, by the top of the pressure cylinder pressure valve flange of the other end of the valve strength test. Under the main disk using the valve flange end for positioning and sealing, by the activities of the anti clamping jaw valve flange back of seal test, no additional influence on the testing result of external force on the tested valve, can meet the requirement of the national standard of the test valve.