Self-Priming Pumps
CombiPrime - Self-priming with Built-in Vacuum Pump
When pumps are located above the water level as in pumping from a river, there is a negative NPSH. To overcome this problem engineers install a foot valve to prevent the water column from draining away from the pump inlet. However sometimes the foot valve leaks and pumps cannot start. Arasains Indonesia supplies the Johnson Combiprime for negative suction heads, a truly self priming pump. This pump has its own built in vacuum pump to remove air when starting the pump. This vacuum pump has a large air displacement capacity shortening start up time. This pump is suitable for low viscosity clean fluids, especially when self priming is required. Self priming is up to 8 m and max water temperature is 80°C. A sea water resistant version is available. Maximum capacity is 800m3/hr at 100m head.
Self-priming centrifugal pump to EN 733 (DIN 24255), Vertical or Horizontal
- Standardized and modular design
- Self-priming
- Built-in vacuum pump with external adjustment
- Large air displacement capacity, shortening suction times
- Flanges according to ISO 7005 PN 16
- Outstanding hydraulic performance
- High efficiency impeller
- Closed impeller with back vanes providing axial balancing of impeller loads
- Mechanical seals to EN 12756 (DIN 24960)
- 2-Angular contact thrust bearings and cylindrical roller bearing
- Robust shaft design
- Extended life time
- Atex certification
- Easy maintenance through the Back-Pull-Out principle
- Sea water resistant version available
- Available in horizontal and vertical execution
Suitable for :
Low viscoty, clean liquids when self-priming is required.
