The Grundfos MAGNA3 model D circulator pumps are designed for circulating liquids in systems with variable flow requirements
where you want to optimize the setting of the pump duty point, thus reducing energy costs.
Applications Heating systems main pump mixing loops heating surfaces air-conditioning and cooling systems domestic hot-water systems ground source heat pump systems solar-heating systems.
The MAGNA3 circulator pump is perfect for both new systems as well as for replacement. The pump is ideal when operating in systems requiring an automated adjustment of pressure. This pump range is the best choice as it eliminates the need for an expensive bypass valves and similar components. Furthermore, the pump is appropriate for systems with hot-water priority as an external signal can immediately force the pump to operate according to the maximum curve, for example in solar-heating systems. When using the pumps in domestic hot-water systems, please observe local legislation regarding pump house material. Grundfos strongly recommend that you use stainless-steel pumps in domestic hot-water applications to avoid corrosion.
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