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Before installing the pipeline, first check whether there are metal scraps and other impurities in the pipeline. When installing the pipeline, do not let the water ring vacuum pump bear the weight of the pipeline, otherwise the installation accuracy of the pump will be affected. After the pipeline system is installed, the position of each part of the pump shall not be affected, and the whole running parts shall be able to rotate quickly.

In order to reduce the resistance, the pipeline system should be as short as possible and avoid bends, and try to reduce the accessories such as gate, valve and switch that increase the resistance loss. The pipeline system of water ring vacuum pump should not interfere with other equipment.

For the suction pipe, in order to avoid the formation of air bag, the connection with the pump should have an inclination of 1:100, that is, the suction pipe should be slightly higher than the center line of the pump inlet and outlet. If it is impossible for the suction piping system to produce an inclination, or if the auxiliary equipment connected to the suction pipe is lower than that of the pump, a tee can be connected in the pipe to meet this requirement. If the inhaled gas contains liquid, the installation of tee is more necessary. The diameter of the suction pipe should not be smaller than the diameter of the air inlet of the pump.

When a large amount of liquid or corrosive substances are contained in the gas, a buffer tank should be installed so that the liquid or harmful substances can flow into the tank and not into the pump, so as to avoid increasing power consumption and corroding the pump body.

A check valve should be installed in front of the suction pipe of the water ring vacuum pump to prevent water or other liquids from throwing to the suction pipe when stopping. A check valve should be installed in front of the suction pipe of the water ring vacuum pump to prevent water or other liquids from throwing to the suction pipe when stopping. The suction pipe should not be distributed in the steam pipe or other places with heat, otherwise the temperature of the suction gas will rise, thus reducing the gas volume and vacuum degree.

In order to effectively use the vacuum pump, the gas is directly discharged to the atmosphere, which can reduce the resistance of the exhaust part. The inner diameter of the exhaust pipe should be equal to the inner diameter of the pipe at the exhaust port of the pump. Similarly, elbows of exhaust pipes should be avoided as much as possible.

The gas water separator should be close to the water ring vacuum pump, so that the connecting pipe will be shorter and the resistance loss will be reduced. When installing the connecting pipe between the pump and the separator, do not make the pipeline have an upward slope towards the direction of the separator, otherwise, during the operation, the liquid is easy to accumulate in the pipe, increase the resistance and power consumption, and generate vibration.

For the water ring compressor, the valve regulating the gas pressure should be installed on the exhaust pipe of the gas water separator, not on the exhaust pipe of the pump (i.e. the connecting pipe between the pump and the separator), otherwise the power consumption will be greatly increased and the matching motor will be overloaded. The pressure gauge for measuring the gas pressure should be installed on the top cover of the gas-water separator rather than near the exhaust port of the pump. Otherwise, the measured pressure is not the gas pressure leading to the compression system after separation, but the mixed pressure of gas and water on the exhaust pipe of the pump.