Pump group Termojet (with mixer) PG-38A

Pump group with mixer NG-38-A — Termojet BOX unit with 1″ FT connection and electric actuator-controller AQUA 413 for automatic maintenance of the set coolant temperature in the circuit. The solution for systems requiring precise regulation without a separate boiler room thermostat.

Operating principle: the mixing unit with AQUA 413 actuator controls the three-way valve, blending cooled return water with hot coolant from the boiler. The controller automatically maintains the supply temperature at the set level — suitable for underfloor heating sensitive to overheating and circuits with a fixed design temperature. The XPE thermal insulation jacket minimises heat losses from the unit in the boiler room. Maximum pressure — 10 bar, maximum temperature — 110 °C. The AQUA 413 controller manual is available in the "Documents" tab.

Applications: underfloor heating, low-temperature radiator heating, circuits with fixed temperature in systems with gas and solid-fuel boilers. For homes with a heat pump, the NG-38-A with mixer allows precise maintenance of the low-temperature circuit temperature — see Termojet heat pumps. For connection to the distribution unit of this series, consider the BOX3 module with thermal insulation for 3 circuits. For a direct pump group without mixer for unregulated circuits in the same series, see: NG-37 direct.

Advantages of the NG-38-A from Termojet:

• AQUA 413 electric actuator-controller included — automatic regulation without additional automation costs;
• XPE thermal insulation jacket — minimum heat losses and a tidy boiler room appearance;
• valves with thermometers on supply and return lines — visual monitoring of the circuit operating mode;
• Ukrainian manufacture: competitive price, availability, and manufacturer's warranty.

Technical specifications: connection 1″ FT, XPE insulation, working pressure up to 10 bar, maximum temperature 110 °C, AQUA 413 electric actuator. Circulation pump not included.

Other temperature-regulated models and direct groups in the BOX series — in the Termojet BOX catalogue.

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

Frequently Asked Questions

Is separate automation required to control the NG-38-A?
No, the AQUA 413 electric actuator-controller is already included and controls the mixing valve independently. See the manual in the "Documents" tab.

Is the circulation pump included?
No, the pump is purchased separately. Check the installation length in the technical data of your selected pump.