Charging valve unit ACG pump Grundfos UPM3 Auto L25-50 DN25, 55°C and 61°C

• Pre-assembled valve unit for solid fuel buffer storage heaters, designed to maintain a high boiler return temperature. An optimal boiler return temperature prevents condensation and boiler creosote buildup, resulting in reduced environmental impact and an extended boiler lifespan. The charging valve unit can also improve stratification in buffer storage systems.

Technical data:

• Operating voltage: 230 V / AC, 50 Hz
• Maximum flow rate: 2600 L/h
• Circulation pump: Grundfos UPM3 Auto L2550
• Maximum operating temperature: 110°C
• Maximum operating pressure: 10 bar
• Housing material: Brass
• Length: approx. 400 mm

• Thermal insert 55°C pre-assembled, 61°C included