The hydraulic welded valve test bench of model YFS-D is particularly designed to test welded valves.The test bench equipped with special seal plates and leak detection assembly can perform intensty test and leakage test of welded valves.Besides,it can also perform intensity test and leakage test of flanged valves,socket welded valves,screwed valves etc.As to test high or super high pressure valves,the test bench can be particularly designed and manufactured according to customers′special requirements.