Description
Circulators for heating and air conditioning circuits The GHN series pumps, with three speeds and threaded fittings, are designed for water recirculation in both closed and pressurised heating and cooling circuits. Thanks to their extremely quiet operation, these pumps are ideal for use in homes. The additives for the anti-freeze system (glycol) do not have any effect on the pump materials, although modifications to the electrical and hydraulic parameters must be taken into account due to the increase in density and viscosity.
- Pumped liquid: Clean, free of solid substances or mineral oils, non-viscous, chemically neutral, close to the characteristics of water, preheated (in accordance with VDI 2035, which determines the hardness and pH of water). The kinematic viscosity value can reach up to 10 cSt (mm2 /s)
- Liquid temperature: 10ºC. at +110 ºC.
- Maximum working pressure: 10 bars.
- Insulation class: F.
- Protection class: IP 44 (IEC 144).
- Performance curves with water temperature at 18ºC.
- Pump body made of grey cast iron.
- Polymer turbine.
- Stainless steel closing flange.
- Stainless steel rotor and stator sleeves.
- Engine shaft: 1.4104.
- Graphite bearings.
- Die-cast aluminium motor housing.
- Asynchronous motor with coated rotor.
- With the motor shaft in a horizontal position.
