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Why does rotary vane vacuum pump spray oil and solution

The commonly used rotary vane vacuum pump products are products that need to be lubricated with vacuum oil, so some users will encounter the phenomenon of vacuum pump oil spraying when using rotary vane vacuum pump products. Because it is the first time to use or the first time to encounter such a failure, I do not know the reason why rotary vane vacuum pump spray oil, so I do not know how to repair rotary vane vacuum pump spray oil.


Reasons for vacuum pump oil injection:


1. Is due to the vacuum pump suction tube, or is pumped container is not sealed, suction piping system suddenly exposed to the atmosphere due to the atmosphere contains a large number of moisture moisture is sucked into the pump body, and vacuum oil into the water after then lead to the phenomenon of vacuum pump oil.


2. Is due to vacuum oil adding too much, plus vacuum oil should be in accordance with the vacuum pump operating instructions correct operation, standard oil level should be lens center shall prevail, vacuum oil too much lead to vacuum pump oil.


3. The user in the use for the first time since the wiring of the motor, vacuum pump, as a result of rotary vane vacuum pump motor reversal caused by rotor rotation direction backwards, inlet is used to have a lot of funnelled, even the air inlet exposed to the atmosphere.

rotary vane vacuum pump.jpg


Solution for vacuum pump injection:


1. Check the untight seal seal is good, if take a vacuum pump is used for vacuum suction cup is suggested in the vacuum pump suction pipe with a vacuum tank after vacuum tank into a negative pressure by a vacuum tank negative pressure suction chuck more appropriate.


2. Open the oil valve and release the excess oil to solve the problem.


3. Reswitching any two wiring positions of the motor can be solved.


4. Seal the inlet of the pump to make the pump run. If there is no oil injection, there is leakage point. The exhaust valve plate is damaged, check whether the exhaust valve plate is damaged, replace the bad exhaust valve.


5. Oil free vacuum pump or water ring vacuum pump can be replaced.

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