Circulation pumps with a mounting length of 220 mm are used for pumping heat transfer fluid in heating, underfloor heating and hot water supply systems. The heat transfer medium can be either pure fresh water or a liquid with 50% glycol impurities. Pumps of this type significantly improve efficiency of heating systems. The pumps are characterized by low noise level, simple and reliable design. They are a good solution in apartments, private houses, cottages, agriculture, warehouses.
Pumping part
– Casing: aluminum and cast iron, treated with cataphoresis anti-corrosion treatment and water resistant painting.
– Impeller: stainless steel
– Motor shaft: stainless steel
Conditions of use
– Heating medium: Fresh water. Liquid containing up to 50% glycol with significant impairment of pump performance.
– Degree of contamination: not permissible
– Ambient humidity: < 60%
– Ambient air temperature: + 5 ℃ … + 40 ℃
– Pumped liquid temperature: -5 ℃ … + 110 ℃
– Max working pressure: 1.0 MPa (10 bar)
– Mounting length: 220mm
– The diameter of nominal passage: 32mm.
– Connection: 2″.
– Number of operating modes: 3.
Motor:
– Motor type: asynchronous, closed type, with winding thermal protection
– Stator insulation: austenitic stainless steel AISI 304
– Stator winding: 100% copper
– Insulation class: F – motor temperature resistance up to 155 ℃
– Bearings: stainless steel
– Voltage: 220-240V
– Frequency: 50 Hz
– Protection class: IP 44
– Cable length: 1.3m.
– Mode of operation: continuous
Accessories:
Pump, steel nuts, cable 1.3 m, instruction manual.
| Model | Power | Q max (l/min) |
H max (m) |
Gross weight, kg | Package sizes, L × W × H, mm |
|
| kW | hp. | |||||
| GRS 32/12 | 370 | 0,5 | 140 | 12 | 8,7 | 245×175×275 |