Two-stage models, with volume flow rates of 5 m /h
They are used in the industrial and research and development sectors to produce medium and high vacuum, and as backing pumps for vacuum pumps which do not compress to atmospheric pressure.
long-time operation at low vacuum levels is not allowed
Advantages to the user:
High water vapor tolerance
Built-in gas ballast valve
Retractable handle, combined with the choice of horizontal or vertical positionning of inlet and exhaust ports allow easy integration in space-limited areas.
Oil level check via sight glass
Anti-suckback valve – it prevents oil contamination when the pump is switched off.
Built-in high-vacuum safety shutoff valve. The pump is vented on the intake side when it is at standstill.
Low oil backflow
Low noise operation
1-phase or 3-phase motor
Typical applications:
A backing pump for small diffusion or turbo-molecular pumps.
For suction, lifting, emptying and filling
Evacuation of refrigerant circuits
vacuum coatings
Practical accessories, such as separators, filters and control units extend the range of applications for complicated jobs.
