Rotary Vane Vacuum Pump Blog

The common failures are: The pump cannot be started. The pump cannot reach ultimate pressure. The pumping speed is too slow. The temperature of the pump is too high during operation. Oil is found in the vacuum pipeline or in the pumped container. The noise of the pump is too large. Vacuum pump oil leakage. 

Correct Use of Gas Ballast Valve. Do Not Work Under High Pressure For Long Time. Try To Avoid Low Temperature Start. Regular Maintenance. If There Is Any Abnormality, Check and Repair In Time.

The oil level is too low. The muffler hole is blocked. The air inlet pressure is too high. The elastic coupling is worn. The blade or bearing is damaged. The cavity is worn. The motor part is abnormal.

Oil leakage to pump casing during refueling. Oil mist deposition at the exhaust port. Over pressure in the pump tank. Real oil leakage.

Anti Return Valve Failure. Exhaust Valve Failure. Inappropriate Pump Oil. Air Intake Is Contaminated. Pump Speed Is Too Low.

Possible Reasons: Oil is insufficient. The pump oil is not clean and emulsified. The pump oil grade is wrong. The oil inlet is blocked. Leakage. The exhaust valve plate is damaged. Check blog post for details.

Causes: The oil level is too low. The exhaust filter is blocked. The elastic block of the coupling is worn out. The vane or pump body has peculiar smell and often wears out. Check blog post for solutions.

 

Problems and troubleshooting of oil spill, no air suction, fuel injection etc.

The oil level and oil contamination should be checked frequently. Replace pump oil and oil filter. Replace the exhaust filter. Clean the suction filter. If the pump is left unused for a long time, drain the oil and clean the pump, then inject new oil and place it in a dry place.

Install a bleed valve on the pump inlet pipeline. Opening the gas ballast valve when pump is running. Install adsorption trap at the inlet of the pump. Use special pump oil.

During the use of the vacuum pump, it is also a common phenomenon that the pressure cannot meet the process requirements, or the ultimate vacuum deteriorates. Check blog post for reasons.

 

Causes: Too much pump oil. The exhaust filter is installed incorrectly or the filter material is broken. The exhaust filter is blocked. Failure of the oil return valve and blockage of the return pipe. Check blog post for solutions.