The series WA/WAU Roots vacuum pumps are provided with directly flange-mounted air-cooled standard three-phase motors. The oiled radial sealing rings of the RUVAC WA/WAU for sealing the shaft against the atmosphere are made of FPM (fluor caoutchouc).
The WS/WSU series pumps are driven by air or water-cooled canned motors.
Roots vacuum pumps of the series WAU/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.
Advantages to the User
Two air-cooled series, each with four models
Reliable and trouble-free
Sealing rings with their housing can be readily replaced
Shaft seals and elastomer seals made of FPM/Viton
Air-cooled standard motors in accordance with IEC dimensions eg. NEMA dimensions
Easy to exchange with custom motors
Integrated pressure equalization line for protection against overloading at high pressures
Pumping direction may be changed as required
ATEX versions compliant to 94/9/EC possible
Typical Applications
For oil-free compression of gases and vapors in combination with a backing pump
Short cycle pumping processes also in the presence of large quantities of gas and vapor
Supplied Equipment
RUVAC WA/WAU are supplied as standard for a vertical pumping action, horizontal pumping action upon request
Mineral oil N 62 is used as standard
Gasket in the intake flange with dirt sieve
The required oil filling is included in separate bottles
