Grundfos UP B circulator pumps have a bronze pump housing for drinking water applications while Grundfos UP N have a stainless-steel pump housing. Both variants are recommended for underfloor heating systems as the pumped liquid may often become aerated, causing corrosion in cast iron pump housings. The pump is of the canned rotor type, i.e. pump and motor form an integral unit without shaft seal and with only two gaskets for sealing. The bearings are lubricated by the pumped liquid.
Grundfos Circulator Pump, 115 V, 0.75 A, 60 Hz, 87 W Power, 1-1/4 in Connection, Connection Type: NPSM, F Insulation Class, Number of Poles: 2, 10 bar, 3 m Maximum Head, Carbon Axial, Radial Bearing, Composite/PES Impeller, Stainless Steel Body, 2 to 110 deg C, 5-8/16 in L x 5-14/16 in H
| Amperage Rating | : | 0.75 A |
| Bearing Type | : | Carbon Axial, Radial |
| Body Material | : | Stainless Steel |
| Connection Size | : | 1-1/4 in |
| Connection Type | : | NPSM |
| Dimensions | : | 5-8/16 in L x 5-14/16 in H |
| Frequency Rating | : | 60 Hz |
| Impeller Material | : | Composite/PES |
| Insulation Class | : | F |
| Maximum Head | : | 3 m |
| Number of Poles | : | 2 |
| Power Rating | : | 87 W |
| Pressure Rating | : | 10 bar |
| Temperature Rating | : | 2 to 110 deg C |
| Voltage Rating | : | 115 V |
- Ceramic shaft and radial bearings
- Carbon axial bearing
- Stainless steel rotor can and bearing plate
Line Drawing