Circulation Pump LFP Leszno ePCO 25/40-70Z – central heating circulating pump

The LFP Leszno ePCO 25/40-70Z circulation pump is designed for closed central heating systems where consistent water circulation is required. Intended for domestic and light commercial installations, this pump moves the heating medium through radiators, boilers and associated piping to maintain even heat distribution. The design focuses on reliable hydraulic performance suitable for routine replacement or new installations in hot-water heating loops.

Advantages

The pump provides stable flow and head characteristics for typical residential heating circuits, supporting efficient heat transfer and system balance. Its construction is compatible with standard heating system ports and mounting configurations, enabling straightforward replacement of common circulators. The unit is engineered to operate continuously in closed-loop systems with minimal maintenance and to integrate with existing boiler and radiator setups.

Suitable for

• Domestic central heating systems in single-family homes
• Small commercial or office heating circuits
• Replacement of existing circulators with similar performance and size
• Closed hot-water heating loops with radiators or convectors

Key specifications

• Type: In-line centrifugal circulation pump for hot-water heating systems
• Nominal connection size: compatible with standard residential pipe fittings
• Hydraulic performance: designed to deliver medium flow rates and sufficient head for multi-radiator circuits
• Application temperature range: suitable for closed hot-water heating applications
• Installation orientation: in-line mountable with standard flange/union connections

How to use

Install the pump in the return or supply line of a closed central heating loop following the system designer or boiler manufacturer's instructions. Ensure shut-off valves, unions or flanges are tightened and that the system is filled and vented prior to start-up. Verify electrical connections match local regulations and the pump's required supply characteristics. After installation, bleed air from the system, check for leaks, and monitor flow and temperature to confirm correct operation.

Usage recommendations

For reliable operation, perform periodic checks for leakage, bearing noise and motor overheating. When replacing an older circulator, confirm dimensional compatibility and hydraulic curve to maintain system balance. Use appropriate isolation valves and strainers during installation to facilitate future maintenance.