Grundfos Circulator Pump, Series: UP Series, 0 to 3 gpm, 5-1/4 ft Maximum Head, 25 W, 115 VAC, 0.23 A, 60 Hz, 1 ph, 145 psi Maximum, 35.6 to 203 deg F Liquid, IP42, 4-1/3 in H

The pump is equipped with a spherical motor. In contradistinction to the conventional canned rotor motors, the spherical motor does not have a rotating bearing shaft. The stator transfers the magnetic field to the rotor in the water conducting part of the pump. The pump is only suitable for pressurized hot water systems. The water conducting part of the pump is hermetically separated from the stator with a stainless steel spherical separator. The built-in timer enables the pump to start and stop automatically at set intervals of minimum 20 min. The built-in thermostat can be set to stop the pump at a preset liquid temperature.