YFT-400 Horizontal Claws Clamping Type Flange Valve Test Bench for Gate Valve Seal and Shell Test

2. It adopts the sealing method of flange blind plates and uses claws to hold the flange end，so there is no external force on the tested valves, which is in accordance with the requirements of GB/T 1392-92JB/T 909-99 and API 598. 3. The right workbench can be turned over 90 degrees，for the convenience of carrying valve and seal test. 4. Test medium can be chosen by user. It can be water air or kerosene. 5. Test bench has low pressure water pump and water booster.There is an air connection reserved for air pump. 6. Water and hydraulic oil can be cycle used. 7. The test bench has an automatic oil pressure discharge system.When using it，the high pressure condition and the relief pressure condition can be changed by itself. So it can reduce oil temperature, elongate the life of valve test bench. 8. PLC control touch screen display pressure diagram and printer system is optional. 9.Safety door is optional.

It is driven by hydraulic power to clamp cylinder move and turn the left workbench over and rotate the clamping. Meanwhile, the high pressure is generated by high pressure pump(input air drive pump can be applied) driven by oil, and the low pressure of water as testing medium could be generated by low pressure water pump. In addition, the pressure could be compensated automatically (It’s up to the operator whether to do it or not). The whole operation can be handled manually through needle valve or by touch screen and PLC automation control system and electrical control system. 4 clampings are set on both sides of workbench to move synchronously in radial direction and to clamp and release synchronously in axial direction. And the right workbench can be turned over with an angle of 0~90°to check and inspect the sealing properly. The left workbench and be moved in radial direction to suit the valves with different length.