Grundfos - Magna1 D40-120F Twin Variable Speed Circulator - 250mm - 230V - Cast Iron

With its high energy efficiency, the product complies with the EuP 2015 regulations, ensuring substantial savings on electricity. With its intuitive, user-friendly interface and maintenance-free design, MAGNA1 D is the well-suited circulator pump for basic performance needs in applications where basic system control and monitoring are desired.

With this range of circulator pumps, everything from setup to basic control and monitoring are made straightforward. The pump is maintenance-free due to the canned-rotor type design. MAGNA1 D offers peace of mind due to the security of supply obtained by having a redundant pump, resulting in improved uptime. The flow, and thereby constant comfort, is secured because of its ability to automatically switch between pump heads if one breaks down. The two pumps communicate wirelessly. MAGNA1 D offers the possibility of monitoring the pump via the fault relay output. The digital start and stop input remotely controls the pump. The pump communicates wirelessly with the Grundfos GO Remote app and can also communicate via radio. MAGNA1 D can work as the main pump in both heating and cooling applications, including:

MAGNA1 D is a single-phase pump characterised by the controller and operating panel being integrated in the control box. The pump housing is available in both cast-iron and stainless-steel versions. The composite rotor can is carbon-fibre reinforced, the bearing plate and rotor cladding are made of Stainless Steel and the stator housing is made of aluminium. The power electronics are air-cooled.

The pump incorporates a 4-pole synchronous, permanent-magnet motor (PM motor). This motor type is characterised by higher efficiency than a conventional asynchronous squirrel-cage motor. The pump speed is controlled by an integrated frequency converter.

Suitable for: Commercial heating, Commercial air conditioning, District heating, District cooling, Domestic heating, Industrial heating

Real-world product applications

• Boosting water pressure to multiple outlets in a building
• Maintaining stable pressure where demand varies
• Supplying water from storage tanks to distribution pipework
• Supporting general water supply and transfer systems
• Assisting with pressure control in utility installations

Key Product Features

• Net weight: 31.6 kg
• Mains frequency: 50 / 60 Hz
• Approvals: CE,VDE,EAC,MOROCCO,UKCA,TSE,RCM,UkrSEPRO
• Max Head: 120 dm
• Product Voltage: 1 x 230 V
• Temperature Liquid Range: -10 .. 110 °C
• Pumped Liquid: Water
• Port to Port Length: 250 mm
• Connection Size: DN 40
• Type of connection: DIN
• Maximum Operating Pressure: 10 bar
• Impeller Material: Composite
• Pump Housing Material: Cast Iron

This is a Grundfos Circulator pump which can be used within closed loop cooling, heating and hot water systems.

Grundfos (est. 1945) is a Danish pump manufacturer known for high-efficiency circulators, multistage boosters, borehole and wastewater pumps, plus packaged pressure systems. The range covers HVAC circulation, domestic hot water recirculation, pressure boosting, industrial water transfer and public water management, with strong focus on energy efficiency and intelligent controls.