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Generally speaking, vacuum pump is a device to improve, produce and maintain vacuum in a closed space by various methods. It has the characteristics of large pumping speed in a wide pressure range. There are many kinds of common vacuum pump, such as reciprocating vacuum pump, rotary vane vacuum pump and water ring vacuum pump. Do you know how to install and maintain the vacuum pump correctly? Let's learn about it together.

1、 Installation points for attention of vacuum pump

1. Choose reasonable pipeline scheme

(1) The shorter the distance between the vacuum system outlet and the pump inlet, the better;

(2) The less the pipeline turns, the better;

(3) The inlet pipe should be higher than the inlet center line of the pump, and the outlet pipe should avoid the factors causing greater resistance, such as climbing up the outlet pipe, right angle turning, etc;

(4) If the vacuum system is small, the diameter of the inlet and outlet pipe can be small, but not less than 70% of the product's import and export diameter, and the outlet diameter should be greater than or equal to the inlet pipe diameter;

(5) The bend of pipeline should be smooth transition;

(6) The inlet pipe of vacuum pump should be equipped with valve to adjust the water inflow.

2. When installing or repairing the pipeline, prevent foreign matters from falling into it.

3. The joint of the pipeline shall be sealed with more gasket, and there shall be no air leakage or water leakage.

4. A vacuum gauge is installed at the suction port of the vacuum system to master the change of vacuum.

5. Install the valve on the pipeline of the suction port

2、 Common faults and troubleshooting of vacuum pump

1. The vacuum does not reach the target

Check whether the vent valve is closed tightly. The valve can also be opened and closed repeatedly in the process of air extraction, so that the valve hole can be flushed by the outside air to purge the possible impurities in the valve, so as to ensure the sealing of the valve.

The vacuum pipe is connected between the vacuum pump and the main engine. Check whether the clamps at the two connections are tightened. The stainless steel joint at the right side of the main engine can be tightened clockwise with a large spanner.

Check whether the bottom surface of plexiglass cover is smooth and smooth. Whether the "O" type rubber sealing ring is damaged. When the vacuum pump starts to work, press down the glass cover for a moment, which is conducive to sealing.

Check the quality of the vacuum pump oil, observe whether the pump oil is turbid or mixed with impurities from the oil sight glass. Generally, the vacuum pump oil needs to be replaced if it works continuously for about 200 hours.

2. Vacuum pump oil leakage, check the oil leakage parts (mainly oil sight glass and sealing gasket), and replace the corresponding new accessories.

3. The high temperature of cold trap is usually caused by poor heat dissipation or high ambient temperature.

4. Vacuum display "---"

Check the connection of vacuum gauge, otherwise please contact the after-sales service department of the company.

The above is the knowledge about the installation and maintenance of vacuum pump. I hope you can read the factory instructions carefully when installing and using the vacuum pump, or install it by professional technicians, so as to improve our efficiency.