Circulation pump GRUNDFOS Evosta 2 40-70/180, single-phase 1x230 V, Y25 connector

GRUNDFOS Evosta 2 40-70/180 is a compact circulation pump intended for heating and hot water systems in domestic and small commercial installations. The pump covers a hydraulic performance range of 40-70/180 and is designed for single-phase 1x230 V supply with a Y25 connector. Its construction supports continuous circulation of water or compatible heat-transfer fluids, helping to maintain stable flow and temperature distribution within closed-loop systems.

Advantages

The pump combines compact dimensions with adjustable hydraulic performance, enabling flexible installation in existing piping layouts. Low electrical consumption and a quiet motor design reduce operating costs and noise while providing reliable circulation. The integrated connector type and standardized voltage simplify electrical connection and replacement tasks, and the unit's design supports corrosion-resistant operation and long service life when used with appropriate fluids and system conditions.

Suitable for

• Domestic central heating systems
• Hot water circulation in residential buildings
• Small commercial heating installations
• Retrofit or replacement of compatible circulation pumps

Key specifications

• Hydraulic performance range: 40-70/180
• Supply voltage: single-phase 1x230 V
• Connector type: Y25 connector
• Application: circulation for heating and domestic hot water systems
• Design: compact in-line pump suitable for closed-loop systems

How to use

Install the pump in the return or flow line of the heating circuit according to system design and local electrical codes. Ensure that the pump orientation and gasket connections match the Y25 connector interface and that all electrical connections are made by a qualified electrician to the single-phase 1x230 V supply. Prime the system and purge air from the circuit before starting. Adjust pump settings or speed according to system requirements to achieve the desired flow and differential pressure within the 40-70/180 performance range.

Usage recommendations

Use corrosion-inhibited water or manufacturer-approved heat-transfer fluids, maintain regular system filtration and water quality, and perform periodic inspections of seals and electrical connections. For replacement, verify dimensional compatibility with existing Y25-connected piping and confirm that the pump's hydraulic range meets system head and flow requirements.