Grundfos MAGNA1 D 40-150F (250) Variable Speed Twin Head Circulator 240V

The Grundfos MAGNA1 D 40-150F (250) is an A‑rated, EuP‑ready variable‑speed twin‑head circulator designed to circulate water in heating and domestic hot‑water systems. It supports variable flows, mixing loops, main‑pump applications and systems with hot‑water priority where an external signal can force the pump to run at the maximum curve.

• Variable speed control: Three proportional‑pressure, three constant‑pressure and three fixed‑speed curves for adaptable system matching and efficient operation.
• Low energy and low noise: A‑rated EuP‑ready design and low noise level help reduce running cost and disturbance.
• Robust construction and performance: Cast‑iron body, 240V single‑phase motor, max flow up to 35 m3/h and max head up to 15 m.
• Installation and service: Twin‑head layout with 40 mm flanged connections; port‑to‑port dimensions noted for sizing (250 mm for D40‑120 to D40‑180 models).

Finished with simple selection indicators and maintenance‑free operation, the MAGNA1 D 40‑150F (250) provides a compact, energy‑efficient circulator option for heating, mixing and hot‑water priority applications where reliable variable speed control is required.