The structure of the valve tester can be roughly divided into hydraulic system, electrical control system, movable jaws of the left and right working platforms, hydraulic pressure supply device and medium circulation system. The right working table is provided with a clamping mechanism and a 90-degree turning mechanism. The clamping mechanism is composed of a clamping device of the clamping jaw and a radial moving device. The clamping device of the clamping jaw is realized by direct driving of each cylinder, so that the claws are subjected to Uniform force and reliable clamping. The radial movement of the jaws is a lever-type structure that enables the radial movement of the jaws. The left workbench can automatically advance and retreat. And has good performance, simple and compact structure. The hydraulic electrical control system (see hydraulic and electrical schematics) is installed in the bottom fixture, which is the control part of the test bench. Under the joint control with the electrical appliances, the various mechanisms can coordinate the actions to meet the test procedure requirements.
The valve tester integrates electromechanical, hydraulic, pressure test and liquid medium storage and recycling, and has the characteristics of perfect function, stable performance and high degree of automation. It is widely used in the performance test of the strength, sealing and leakage of straight-type flanges and threaded joints of various types of high, medium and low pressure valves with nominal diameter DNl 5-1000mm. Test medium: water, gas, oil. The highest sealing test pressure is 32.0 MPa and the strength is 48 0 MPa. The whole process of the valve pressure tester is controlled by hydraulic transmission and electric appliance, and there is no external force on the tested valve that has any additional influence on the test result. Greatly improve work efficiency and reduce labor intensity. It is an advanced ideal valve test and testing equipment for valves, manufacturing, use and maintenance.
