The UPS range from Grundfos are a perfect pump for dommestic hot water circulation as well as commercial heating. The Grundfos UPS 15-50N boasts a stainless steel pump housing as well as a corrosion-resistant impeller. The UPS 15-50N is also low energy, low noise and maintenance free. To increase efficiancy and limit pump operation to periods when hot water is required, the UPS 15-50N can be connected to a time switch.
The Grundfos UPS 15-50 N 130 is a canned rotor type pump. This means there is no shaft seal, instead the pump and motor form an integral unit resulting in only 2 gaskets for sealing. The pumped liquid also works to lubricate the bearings. The Grundfos UPS 15-50 N 130 is complete with a 3 step speed selector. Other characteristics include:
Ceramic shaft and radial bearings.
Carbon axial bearing.
Stainless steel rotor can and bearing plate.
Corrosion-resistant impeller, Composite, PES/PP.
Stainless steel pump housing.
The motor is a 1-phase motor. No additional motor protection is required