Workflow of valve test bench
閥門試驗臺是用于閥門和檢維修后閥門的可靠的密封性質量 , 閥門生產和閥門解體檢維修后的后一個工序是試壓檢測。
The valve test bench is used for reliable sealing quality of valves and valves after inspection and maintenance. The next process after valve production and valve disassembly and maintenance is pressure test.
During the use of the valve test bench, it is found that the manual operation of the electric pressure test pump will often make the pressure value of the valve exceed the pressure value specified in the test. In serious cases, it will cause the pointer of the pressure value display dial to bend, damage or damage the valve, and even cause personal safety accidents.
The valve test bench can solve the above problems by using the safety intelligent device. When the pressure reaches the specified value, the device will automatically turn off the switch of the electric pressure test pump, and the alarm device will give an alarm at the same time.
The electric control part of the valve test-bed consists of main circuit, control circuit and signal indicating circuit. The multifunctional electric control valve test-bed is mainly composed of operation panel, silicon rectifier circuit board, electric device control circuit board, circular connector socket board, mobile platform and other components.
Inspection of valve test bench before use
(1) Check whether the shell of the test bench has cracks. If there are cracks, it cannot be used.
(2) Check the insulation resistance of the valve test bench. Use a 500V insulation resistance meter to test, and the insulation resistance shall not be less than 5m Ω. If it is lower than this value, open the drain hole and vent hole, and use it after drying or drying.
(3) Check whether the seals at the vent hole, water hole, oil hole and cable joint of the valve test bench are loose. If they are loose, tighten them.
(4) Correct the positive and negative poles of the power supply before starting to prevent the water pump from reversing and no water from flowing out.
(5) The cable * of the valve test bench shall not have a joint. If there is a joint, it shall be wrapped up. The whole cable shall be free of damage and breakage. Otherwise, it shall be replaced with a new cable. In addition, the cable should be overhead and not too long.
(6) The manufacturer of gas booster pump reminds you to check the power supply line and switch before starting the machine, and power on the ground to idle for 3~5min. If the operation is normal, put it into water for use.
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