RUVAC WS/WSU

The series RUVAC WS Roots vacuum pumps are driven by a air or water cooled canned motor. The available frequency converters have been matched to the pump so that the possibility of mechanically overloading it is excluded. In the case of a pressure difference which is too high, the rotational speed of the pump is automatically reduced until its load. Roots vacuum pumps of the series RUVAC WSU are provided with an additional integrated pressure equalization line and a differential pressure valve. Pumps from these series are supplied with a vertical pumping action as standard.

• Two air-cooled lines WS/WSU, each with four pump sizes • Highly leak-tight air-cooled pumps driven by air-cooled canned motor • Lubricated with mineral oil (alternatively with LVO 400) • Over-temperature switch in the stator coil of the motor • All elastomer seals made of FPM (FKM)/Viton • Integrated pressure equalization line with differential pressure valve prevents overloading on WSU model (optional) • A frequency converter can be used to operate the RUVAC WS 251 to 2001 pumps between 20 and 100 Hz • No shaft feedthrough to the atmosphere, thus particularly leak-tight • Conversion from vertical to horizontal pumping action can be done from the side of the customer