Hebei Dingxing professional production 4D-SY3.5MPa high flow test pump manufacturers

Start: Turn return valve to start, (ie communicating handle is in the horizontal position) so that the pressurized water tank effect does not occur. Then the exhaust valve opens the exhaust valve after draining, close the drain valve. Normal return valve is closed. (Communicating handle sagging position) 3, running and parking: (1) Close return valve, four-cylinder simultaneously, charging water. (2) After filling water pressure of 2.8Mpa, and then open the return valve (communicated handle is in the horizontal position) two high-pressure cylinders work alternately, so that the pressure slowly rise. (3) to reach the required pressure stop, stop to the required time, checks the test container. (4) Precautions during operation: ① gearbox during operation should be uniform no noise, noise and blocking phenomenon. ② gearbox oil should be kept below 80 ℃, the maximum does not exceed 85 ℃. ③ found in sediment in the work situation should be stopped immediately and carry out maintenance work, does not allow leakage phenomenon. ④ working pressure must not exceed 3.5Mpa. ⑤ cylinders should be kept within a certain amount of air in order to reduce pulse pressure gauge pressure by pump.