Before the pressure gauge leaves the factory, it is necessary to carry out durability test on the sample, that is, fatigue test. Press and release the pressure repeatedly for tens of thousands of times to determine whether the pressure is qualified. The fatigue test bench of the pressure gauge produced by our company can repeatedly pressurize and relieve pressure through the computer-controlled pressurization system. Now let's talk about the composition and test content of the pressure gauge fatigue test bench.
Composition of pressure gauge fatigue test bench:
The fatigue test-bed is mainly composed of a pressurized water pump, a pressurized valve and a pressure relief valve, forming a pressurized pressure relief system. With the cooperation of control system, data acquisition system and other auxiliary measurement and control devices, the cycle action and test of fatigue test are automatically completed. Judge and count the results, and finally form a test report. Unmanned operation can be realized during the test.
The rotating speed of the pressure test pump is controlled by the frequency converter according to the set high-pressure water source pressure, so as to keep the high-pressure water source pressure as stable as possible. Adjust the charge and discharge flow with throttle valve to meet the time required for pressure rise and pressure relief required by the test. Through the above measures, the consistency of each step-up and step-down process is ensured before the tested sample fails. When a fault occurs, the pressure will suddenly change, and the test system can monitor the abnormal pressure of the tested sample. Judge the early failure (compared with the set number of tests).
Test of pressure gauge fatigue test bench:
The test system is mainly used to test the compressive strength and fatigue of various pressure gauges and pressure transmitters.
Main technical parameters:
Pulse test pressure range: 0-20mpa
Can be tested at the same time: 1-10 (optional)
Test medium: hydraulic oil, heat transfer oil or ethylene glycol
Pulse frequency: 0-1hz (0-60 times /min)
Constant voltage accuracy: -0.5% ～ + 0.5%
Power supply voltage: AC 380V
Control system: electric control
The manufacturer of gas-liquid booster pump reminds you that the pressure gauge test bench is composed of low-pressure power pump, high-pressure booster, flushing pump and circuit control system. It can complete the fatigue test of the pressure gauge, compare with the benchmark gauge, test the stability and accuracy of the pressure gauge, and set the test pressure, test times and test frequency by itself, so as to achieve the function of test times, automatic shutdown and alarm.
That's all for the composition and testing of the pressure gauge fatigue test bench. If you have any questions, please come to our website http://www.sdjingtuo.com Consult and understand!