Magnetically coupled and ATEX certified Roots pumps

The tried and tested Roots pumps principle was further developed for this certification and named OktaLine ATEX. Vacuum pumps in the OktaLine ATEX series are suitable for processes in explosive areas or for evacuating explosive gases according to the ATEX directive (94/9/EC).
Depending on the application, customers can choose between equipment category 2 and 3. All pumps are suitable for temperature class T3.

These hermetically sealed pumps have very low leakage rates of less than 1x10-6 Pa m³/s. Due to the magnetic coupling, it was possible to omit the shaft sealing rings, which are inherent weak points when pressure surges occur and are also high-maintenance.

Pumps in the OktaLine ATEX series are resistant to pressure surges of up to 1,600 kPa. In addition, the magnetic coupling prevents a gas exchange between process related internal and external atmospheres.

OktaLine ATEX is a complete line of pumps that covers the pumping speeds from 280m³/h to 5,190 m³/h. The gear box and bearing areas in the Roots pumps are separated from the gas pumping chamber.

Dry operation is assured, thanks to the contactless operating principle of the Roots pistons. Another advantage is the use of air cooling, as operating costs are significantly lower than with water cooling.