- Water ring type which performs well even if liquid ismixed with air.
- Rotary type with no contacting parts except forbearings and shaft seal provides for efficient operationand maintenance, with less chance for malfunctions.
- Great flexibility permitted for layouts due to compact lightweight construction.
- Stable operation possible under high vacuum conditions.
- Type NVD combines pump and feed water tank in one unitso that water is automatically supplied to the vacuum pumpto reduce noise.
Also available, an exclusive feed water tank for Type NV.