DESMI - Model SA -Self-priming Centrifugal Pump
The DESMI SA self-priming centrifugal pump.The diffuser principle in the self-priming DESMI SA centrifugal pump means that the priming capacity is not dependent on valves or other mechanical elements since it is the liquid flow which carries the air.The SA pump used within different applications and markets.
For priming, the pump casing is filled with liquid prior to starting.Due to the rotation of the impeller the liquid is immediately pumped from suction chamber through impeller into air separating chamber.
Due to the negative pressure thus created in the impeller eye, liquid is drawn through the return passage into the impeller. Due to the negative pressure in the pump, the check valve opens so as to draw air from the suction line into the pump where liquid and air are mixed and proceed through the passage into air separating chamber.
- Capacity range : 0-650 m3/h
- Pressure range : 0-110 mLC
- Temperature range : With standard mech. shaft seal max. 80oC, with special mech. shaft seal max. 120oC.
- Draining building excavations
- Emptying ponds, drains and swimming pools
- Water extraction for irrigation and watering
- General service pumps
- Fuel handling
- Condensate extraction pumps