Pump group Termojet with actuator-controller A-413 1" FT in EPP BLACK thermal insulation without pump PG-48EPPAL L

Pump group NG-48A L with actuator-controller A-413 — Termojet automated mixing unit 1″ female thread in proprietary EPP BLACK thermal insulation for circuits with controlled supply temperature. The "L" version means the supply line is on the left, and the actuator is already mounted on the mixer — the unit is ready for operation immediately after installation and power connection.

Operating principle: the actuator-controller A-413 (230V, 3-point ON/OFF control) rotates the three-way mixing valve and blends cooled return water into the supply — the circuit temperature is regulated automatically, without manual adjustment of the thermostatic head. Actuator torque — 6 Nm, rotation time 90° — 120 seconds, protection class IP42, CE and RoHS certified. Valves with thermometers 0–120 °C on supply and return show the actual operating mode and allow the circuit to be isolated for servicing.

Applications: underfloor heating, combined systems "floor + radiators", weather-compensated circuits, piping for solid-fuel and gas boilers. Precise automatic temperature control makes the group suitable for low-temperature systems with a heat pump — see Termojet heat pumps. In the boiler room the group is mounted on a distribution manifold K22V.125 (2+1, top outlets) with a standard centre distance of 125 mm.

Advantages of NG-48A L from Termojet:

• actuator-controller A-413 included — automatic temperature regulation with no additional settings;
• EPP BLACK thermal insulation with recesses for fittings — minimum heat losses;
• fully assembled and tested at the factory — installation in minutes;
• Ukrainian manufacture: competitive price, in-stock availability, official warranty.

Technical parameters: maximum power 20 kW at ΔT=10 °C and 40 kW at ΔT=20 °C, Kvs 6,3 m³/h, connection 1″ female thread, working pressure up to 6 bar. Circulation pump installation length — 180 mm; pump not included — the energy-saving Termojet APE 25-60 pump (180 mm) is suitable.

A simpler alternative without an electric actuator — pump group NG-46 with thermostatic valve; view the full range in the Termojet pump groups catalogue.

The group is supplied with the actuator-controller Termojet A-413 with an integrated temperature sensor — it automatically controls the three-way mixing valve according to the set programme, maintaining a stable supply temperature.

Frequently Asked Questions

Is the circulation pump included?
No, the pump is purchased separately. The installation length in this group is 180 mm; the Termojet APE 25-60 (180 mm) is the optimal choice.

What does the "L" version mean?
The supply line is positioned on the left — this allows convenient arrangement of groups on the manifold depending on the boiler room piping layout.