High Vacuum Pumps

We are offering largest vacuum pump series with 19 sizes to our clients. These are suitable for all those applications requiring considerably higher pressures than those can be achieved using centrifugal fans. Since these make no friction during operation, there is no requirement of internal lubrication.

AERZEN POSITIVE DISPLACEMENT BLOWERS for conveying of air and neutral gases for high vacuum

Since 1868 the Aerzener Maschinenfabrik has been manufacturing Positive Displacement blowers (Roots Blower). It is one of the oldest and largest manufacturers and is market leader in Europe. Especially in vacuum technology Aerzen has experience of more than 60 years. Technical know-how, experienced personnel and a constant dialogue with the customers are the basis for successful new developments from Aerzen. Customers’ benefit is of prime importance. By means of innovative products the Aerzener Maschinenfabrik guarantees to plant manufacturers and – users to secure their lasting success on the market.

The blowers made by Aerzener series HV have been designed for conveying air and neutral gases and are especially used in industrial High Vacuum technology. With a total of 19 sizes the blowers cover theoretical nominal intake volume flows from 180 to 97.000 m³/h and pressure ranges from 10-3 mbar abs. up to approx. 200 mbar abs.

The vacuum blower made by Aerzener distinguishes itself by O-ring-seals on the housing flanges, vacuum-
tightness and air cooling of the blower stage. The lube oil supply is effected by splash lubrication. As lubricant mineral oil as well as Anderol and PFPE-oil mostly used for conveying oxygen can be used. The series HV is equipped with a special oil slinger-piston ring-labyrinth seal between conveying chamber and bearing chambers. In addition a largely dimensioned neutral chamber with condensate channels is installed. Furthermore the neutral chamber can be purged with seal gas, in order to achieve an increased purging effect. The sealing of the driving shaft is guaranteed by double radial seal rings with an oil chamber. The blower is driven by direct coupling with motor, alternatively in case of high volume flows with spur gear. It is even possible to use a narrow V-belt drive in case of limited differential pressure. The driving unit consists of a cast connection piece with perforated plate cover, flexible coupling and flanged B5-motor, equipped as per IEC-standard and additionally with 3 PTC-resistors. As standard EFF1- or EPACT-motors are used for highest energy efficiency. The drive is suitable for frequency converter.