Grundfos MAGNA1 D 32-40 (180) Variable Speed Twin Head Circulator 240V

The Grundfos MAGNA1 D 32-40 (180) is an 'A' rated, EuP-ready variable-speed twin-head circulator designed to circulate water in heating systems and domestic hot-water systems. It supports variable flows, offers immediate max-curve operation via external hot-water priority signal, and includes user-selectable pump settings indicated by nine light fields.

• Designed applications: heating systems, main pump, mixing loops, and heating & air-conditioning.
• Performance and connections: 240V 1Ph 50Hz electrical supply; max flow 11.5 m3/h; max head 4 m.
• Physical and operating details: cast-iron body; pumped liquid: water; liquid temperature range -10 to 110 °C; 180 mm port-to-port with 2" BSPM screwed connections (models D32-40, D32-60, D32-80, D32-100).
• Operational features: three proportional-pressure curves, three constant-pressure curves and three fixed-speed curves; low noise level; maintenance-free design.
• Key specifications: motor power 9–73 W; full load current 0.09–0.59 A; dimensions 180 mm (h) x 400 mm (w) x 196 mm (d); weight 13.4 kg.

Built to deliver controlled circulation with low life-cycle energy use and straightforward installation, the MAGNA1 D 32-40 combines selectable control curves, hot-water priority signaling and robust cast-iron construction for typical heating and DHW pump roles. Manufacturer-specified warranty: 2 years.