Key points of single stage rotary vane vacuum pump

Single stage rotary vane vacuum pump is also called XD rotary vane vacuum pump. Generally, single-stage rotary vane vacuum pump oil conforming to sh0528-92 specification should be used for single-stage rotary vane vacuum pump. Single stage rotary vane vacuum pump oil with ISO ~ vg100 viscosity grade at ambient temperature of 10 ℃ ~ 40 ℃. When the ambient temperature is 0 ℃ ~ 10 ℃, the vacuum pump oil of ISO ~ vg32 viscosity grade is used. When the vacuum pump is running, the oil level must be 1 / 2-4 / 5 of the oil window height. 

Oil level and oil contamination should be checked regularly (once a week is recommended). If the oil level is too low, the single-stage rotary vane vacuum pump should be stopped and suitable vacuum pump oil should be 4 / 5 of the oil window height. If the oil is polluted, the oil will be blackened, emulsified and thickened, and the oil should be changed in time. The single-stage rotary vane vacuum pump is recommended to change oil after 150 hours of operation for the first time. After that, change the oil every 500 hours. At the same time, the oil filter should be changed. If the oil is polluted, blackened, emulsified and thickened, the oil should be changed in time. Clean the pump before adding new oil. 

In the cleaning and oil changing steps, stop the single-stage rotary vane vacuum pump and drain the hot oil. Screw on the drain plug and run for 5 ~ 10 seconds. Drain the oil completely. Fill cleaning oil (No. 32 ordinary machine oil) to 3 / 4 of oil window height. Run the single-stage rotary vane vacuum pump for 5-10 minutes. Stop the pump and drain the oil. If the oil cannot reach the request, repeat steps 4 and 5. Screw on the drain plug and run for 5 ~ 10 notes.

If the temperature of the pump rises obviously, the motor current reaches or exceeds the rated current, and there is oil smoke at the exhaust port of the pump, it is necessary to check whether the exhaust filter is blocked. If it is blocked, it should be replaced in time. The exhaust pressure gauge can be installed at the oil filling hole of the pump to check whether the filter is blocked. When the pressure exceeds 0.6 bar (gauge pressure), change the exhaust filter.

Regulating Gate Valve Type Selection And Principle

How To Deal With Rust Of Roots Blower

Stainless Steel Vacuum Valve Application Field