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Measures To Prevent Rotary Vane Vacuum Pump Oil Return

Install a bleed valve on the pump inlet pipeline to maintain the inlet pressure above 10Pa, which can reduce the return flow by 98%.
For single-stage pumps, opening the gas ballast valve when the pump is running can well prevent some backflow.
An adsorption trap is installed at the inlet of the pump, which relies on the adsorbent to absorb the reflux vapor.
Use special pump oil.

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Measures To Prevent Rotary Vane Vacuum Pump Oil Return

Install a bleed valve on the pump inlet pipeline to maintain the inlet pressure above 10Pa, which can reduce the return flow by 98%.

For single-stage pumps, opening the gas ballast valve when the pump is running can well prevent some backflow.

An adsorption trap is installed at the inlet of the pump, which relies on the adsorbent to absorb the reflux vapor.

Use special pump oil.

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