Thermostatic regulating units with pump

This category includes pre-assembled thermoregulating units with integrated circulation pumps and non-return valves. Designed for use in heating systems and boiler applications, these units maintain a constant output temperature while protecting against low-temperature corrosion and tarring in solid-fuel boilers. Available in DN 25 and DN 32 sizes, they are suitable for hydronic systems requiring precise temperature regulation and hydraulic separation.

Each unit includes a Grundfos UPM3 AUTO L-50 circulation pump, thermal insulation, and a replaceable thermoregulating insert. They operate at 230 V, 50/60 Hz and support supply temperatures up to 110°C. The maximum power output is 35 kW for DN 25 and 65 kW for DN 32. Units are constructed from DZR brass and include three ball caps, three thermometers, and a non-return valve for system protection.

How to choose

• Select the correct DN size (25 or 32) based on the required flow rate and system capacity.
• Match the operating temperature range (e.g., 55°C, 61°C, 72°C, or 80°C) to the boiler or system requirements.
• Verify compatibility with the boiler type (solid fuel) and the need for low-temperature protection.
• Ensure the electrical supply (230 V, 50/60 Hz) matches the site conditions.
• Confirm the connection type (threaded or flanged) aligns with the system piping.

Frequently asked questions

What is the maximum power output for DN 25 and DN 32 units?
DN 25 units provide up to 35 kW, while DN 32 units support up to 65 kW.

Can the thermoregulating insert be replaced?
Yes, the thermoregulating insert is replaceable, allowing for adjustments to temperature settings or maintenance without replacing the entire unit.

What components are included with the unit?
Each unit includes a Grundfos UPM3 AUTO L-50 pump, three ball caps, three thermometers, a non-return valve, thermal insulation, and a replaceable thermoregulating insert.