Grundfos MAGNA1 D 50-80F (240) Variable Speed Twin Head Circulator 240V

The Grundfos MAGNA1 D 50-80F (240) is a 240V variable-speed twin-head circulator designed for circulating water in heating and domestic hot-water systems. It is A-rated and EuP ready, offers very low energy consumption, and supports external hot-water priority to force operation on the maximum curve for systems such as solar heating.

• Variable-speed control with nine light fields for pump-setting indication and three proportional, three constant-pressure, and three fixed-speed curves.
• Performance: up to 36 m3/h flow and 8 m head; pumped liquid temperature range −10 to 110 °C.
• Electrical and mechanical: 240 V 1Ph 50 Hz supply; motor power range 20.6–331 W; full-load current 0.22–1.48 A.
• Robust construction: cast-iron body, 50 mm flanged connections, 240 mm port-to-port dimension (D50-80), weight 42.0 kg.
• Low noise, maintenance-free design and a 2-year manufacturer warranty.

Use this MAGNA1 model where reliable, energy-efficient circulation is required in heating, mixing, or heating/air-conditioning loops. Its compact port spacing and flanged connections suit systems specifying a 240 mm pump centre and standard 50 mm flanges.