Plunger metering pump precautions

Piston metering pump is a reciprocating displacement pump, it can be widely used in petroleum exploration, petrochemical, thermal power generation, light industry, chemical industry, sewage treatment, water treatment, food industry, military and other fields of production and research department. So when using the plunger metering pump, you should pay attention to what matters? The following is the introduction of the precautions on the use of the plunger metering pump. Plunger metering pump precautions 1, the new pump should be washed before use pump anti-corrosion grease, check the connection bolts are tightened, does not allow any loose. 2, in the gearbox and gear box into the mechanical oil (GB3141-82), oil control in the oil centerline. Selection of mechanical oil: N46 in summer, winter with N32. Add N20 oil cup machine oil. 3, hand metering disk pump, the plunger reciprocating 1 to 2 maximum stroke. There may be no blocking phenomenon. Then the zero point of the pump stroke corresponds to the zero point of the scale to prevent the drift of the scale pointer in transit. 4, open the import and export pipeline valves, start the motor, check the motor circuit, and the pump rotation in accordance with the provisions of the direction of rotation. Select the maximum stroke drainage, the cylinder body of the air completely drained. 5, rotate the adjustment handle, the displacement of the pump calibration. To be transferred to the set displacement, the handle should be tightened to adjust the screw handle, so as not to impact the loose, causing traffic changes. 6, the pump is operating normally under normal pressure gradually raise the discharge pressure to the rated value. 7, check the plunger packing leaks, such as leakage of more than 10 drops per minute, should be properly tightened packing compression nut, clamping force to not plug the plunger without leakage is appropriate. 8, check the temperature rise phenomenon. Motor allows the temperature rise of 70 ℃, the transmission oil temperature should not exceed 65 ℃, the temperature of the filler box shall not exceed 70 ℃. If the temperature is too high it should be shut down to check, to be troubleshooting and then boot operation. 9, the pump boot, the operation should be smooth, in addition to beating one-way valve beating sound, can not have special noise, but can not bring "disease" work. 10, the pump fluid can not be greater than 0.1mm solid particles or impurities, otherwise it will directly affect the accuracy of the pump displacement, it is recommended to install the pump inlet pipeline. 11, in the discharge of some easy to vaporize the liquid, the outlet pipe should be installed on a gas-liquid separation device. Extended reading: China Construction Water Exhibition water pump manufacturers rankings ptc exhibition motor top ten brands pump valve pipe fittings Show Information Industry Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Duanhui (QQ / WeChat:) http: // mj .liuti.cn / (Service Hotline:)

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