L series vacuum pumps - classic oil-lubricated rotary vane vacuum pumps (oil vacuum pumps) combining the proven principle of operation and innovative DVP developments.
All vacuum pumps in this series have a circulating lubrication system with a built-in highly efficient oil separation unit, which provides a significant reduction in the concentration of oil vapors in the exhaust air, oil purification by means of an oil filter, and oil cooling to operating temperature.
All pumps of the L series are equipped with an automatic gas ballast device. At a certain point in the compression cycle, this element increases the pressure in the working chamber by mixing atmospheric air and the pumped medium, which avoids condensation of water vapor in the working chamber.
The built-in non-return valve prevents atmospheric air from flowing into the vacuum system when the pump is turned off under vacuum (at the signal of the automatic installation in
