RUVAC roots pumps (also known as Vacuum Blowers ) have been manufactured by Leybold Vacuum for many years. The dry compressor roots principle has proven itself in many areas of vacuum technology including vacuum furnaces and vacuum coating.
Combined with oil-sealed fore-vacuum pumps such as the TRIVAC® or SOGEVAC®, SCREWLINE OR DRYVAC, RUVAC roots pumps are used very effectively to increase the pumping speed at low pressures and extend the operating pressure range of the fore-vacuum pumps.
RUVAC vacuum blowers are manufactured in three series with different motor drives:
Each series consists of various sizes to always provide an optimized pumping speed for each application. All three series are available with or without integrated bypass valve (also known as pressure compensation valve). By using a by-pass valve mechanism, the blower can be started at atmospheric pressure to decrease the roughing pump time. These blowers are designated by the U in the WAU, WSU or the new WHU Blower.
The concept of the hermetically sealed, water cooled motor permits optimal cooling resulting in a very high motor efficiency.
Water cooling at the motor allows extreme high motor loads and at the same time high protection against overloads. Apart from a reduced pumpdown time, noise and heat emissions are also reduced.
Water cooling significantly reduces the oil temperature, resulting in improved lubricating properties thereby guaranteeing a long service life for the bearings.
Key Points
Key Points
