Test pressure pump steps first step, test pressure pump pipe water. Install the pressure gauge, water valve and other accessories, open the exhaust valve to be tested pipeline, close the drain valve, through the nozzle into the clean water until the water is filled pipe and over a certain value of the water valve, close the exhaust valve , Stop filling. The raw materials of the Drum Wood Chipper can be: logs, branches, veneer, scrap veneer, bamboo, cotton and other non-wood fiber stalks, etc.These materials can be cut into wood chips of different specifications at one time.As the production of particleboard, fiberboard, non-wood artificial board and pulp and paper basic raw materials. High efficient wood chipper,China wood chipper,High capacity wood crusher Jinan Shanghangda Machinery Co., Ltd. , https://www.jinanshdmachine.com
The second step, test pressure pump with oxygen connection. The oxygen bottle (bottle pressure greater than the test pressure) on the rubber band connected to the water pipe.
The third step, the pressure test pump slowly boost. Slowly open the valve on the oxygen bottle, pay attention to observe the pressure gauge on the oxygen bottle, pressurized to a certain value, you should stop to check the pipeline, no problem then continue to pressure, generally 2-3 points rose to test pressure.
The fourth step, pressure test pump pressure check. For low-pressure heat pipe, pressure holding time to 5-10 minutes is appropriate in the test pressure to maintain the time, such as the pressure gauge pointer does not drop more than 0.02MPa, and no distortion of the visual pipe, that strength test pass.
Final pressure test pump tightness test. The pressure down to the working pressure, a comprehensive inspection of the pipeline can be used 1.5g below the head hammer in the seam 1.5-20mm Department gently tapping, such as pressure gauge pointer does not drop, the pipe weld and flange connection Department did not find leakage, that can be considered tight test.
Test pressure pump application examples Test pump in Xinyi Zhongli Road heat pipe renovation project, the method has been applied, Zhong Wu Road width 42cm, heat pipe (219) below the elevation of 3.5m crossing the clock After my road, rise on both sides of the road. After the installation of the pipeline, using the method of hydraulic pressure test, the test pressure of 0.9MPa, after the pressure reaches the test pressure 40 minutes, pressure gauge pointer no change.