Pump group Termojet with mixer 1" FT in thermal insulation without pump PG-48 (28)

Pump group with mixer NG-48 — a Termojet unit with a three-way valve and 220 V electric actuator for circuits where boiler room automation controls the heat carrier temperature. The actuator included in the supply set receives a signal from the controller and smoothly regulates return-line blending — more precisely and flexibly than a thermostatic valve. Maximum circuit output — 40 kW at ΔT=20 °C.

Operating principle: the three-way valve is moved by the electric actuator on command from the boiler room controller. Increasing the opening toward the return line lowers the supply temperature; closing it raises it. This enables weather-compensated control and precise adherence to the set temperature curve for underfloor heating or low-temperature radiators. Valves with 0–120 °C thermometers and a built-in check valve are included.

Applications: underfloor heating with boiler room automation (e.g., Termojet PROFI PLUS), low-temperature radiator heating, weather-compensated control circuits, heat pump systems requiring flexible supply temperature control. When selecting equipment for heat pumps, see Termojet heat pumps. For distributing multiple circuits, the manifold K32V.125 with 3+1 top outlets is suitable.

Advantages of NG-48 from Termojet:

• 220 V electric actuator included — ready for automation connection without additional components;
• fully assembled and tested unit: valves, thermometers, check valve, insulation;
• union nuts on supply and return — fast installation and servicing;
• Ukrainian manufacture, manufacturer's warranty and in-stock availability.

Technical parameters: maximum output 20 kW at ΔT=10 °C and 40 kW at ΔT=20 °C, Kvs 6.3 m³/h, connection to manifold and circuit — 1″ female thread, working pressure up to 6 bar, height 353 mm, width 261 mm, volume 0.34 l. Circulation pump installation length — 130 mm; pump not included, we recommend Circulation pump Termojet APE 25-60 (130 mm). Connects to a manifold with 1¼″ outlets via adapter KP125/150.

Model NG-48 L with the same function but in an EPP BLACK casing for a 180 mm pump, and the full product range — in the Termojet pump groups catalogue.

Frequently Asked Questions

How does NG-48 differ from NG-46 with a thermostatic valve?
NG-46 regulates temperature mechanically — a thermostatic valve with no electricity. NG-48 is controlled by an electric actuator from boiler room automation: more precise, more flexible, with weather-compensated control capability.

Is the actuator included in the set?
Yes, the 220 V electric actuator is included in the supply set.