Seawater Pump With Energy Recovery Type SWPE
The Danfoss SWPE is a high-efficiency energy recovery unit for reverse osmosis filtration of sea water. Energy recovery is achieved by feeding high-pressure brine from membranes into the recovery device (APM) that converts the energy in the pressurized brine into mechanical energy for reuse by the electric motor.
The SWPE energy recovery unit consists of an APP pump and an APM motor, both connected to a double-shafted electric motor.The permeate flow and recovery rate depend on the difference between the size of an APP and an APM, as they have a fixed volumetric displacement.
Energy recovery is obtained when high-pressure brine from the membranes is fed to the APM that converts the energy in the pressurized brine to mechanical energy to be re-used by the electric motor. As the APM has a fixed volumetric displacement, the recovery rate will be fixed.
SWPE are available in sizes from 4-30 m3/day with recovery rates between 29-32%. Other sizes are available upon request.
For the complete range of Danfoss SWPE Salt Water Pumps go to our dedicated website: High Pressure Water Equipment - SWPE Pumps
|APP pump / APM motor||APP1.0/APM0.8||APP1.5/APM1.2||APP1.8/APM1.2|
|Feed flow||m3/h (gpm)||0.50 (2.2)||0.80 (3.5)||0.85 (3.7)|
|Permeate (± 10%)||m3/h (gpm)||0.14 (0.6)||0.22 (1.0)||0.27 (1.2)|
|Electric motor (4 poles)||1.1 kW, IEC 90||1.5 kW, IEC 90||1.5 kW, IEC 90|
|Feed flow||m3/h (gpm)||1.05 (4.6)||1.55 (6.8)||1.65 (7.3)|
|Permeate (± 10%)||m3/h (gpm)||0.30 (1.3)||0.43 (1.9)||0.52 (2.3)|
|Electric motor (2 poles)||2.2 kW, IEC 90||3 kW, IEC 100||3 kW, IEC 100|
|APP pump / APM motor||APP2.5/APM2.0||APP2.5/APM1.8|
|Feed flow||m3/h (gpm)||1.25 (5.5)||1.25 (5.5)|
|Permeate (± 10%)||m3/h (gpm)||0.36 (1.6)||0.40 (1.8)|
|Electric motor (4 poles)||2.2 kW, IEC 100||2.2 kW, IEC 100|
|Feed flow||m3/h (gpm)||2.55 (11.2)||2.55 (11.2)|
|Permeate (± 10%)||m3/h (gpm)||0.74 (3.3)||0.82 (3.6)|
|Electric motor (2 poles)||*||*|
|If other flow or recovery rate is required, please contact M & M Controls.
* For this combination, please contact M & M Controls.