THB230 / THB24

Auto Balancing Actuator

THB230 / THB24 Auto Balancing Actuator
THB230 / THB24 Auto Balancing Actuator
THB clamps
Uniform heating

In a standard underfloor heating system, hydronic balancing is a very difficult and laborious process. The THB230 / THB24 has two temperature sensors that are connected between the Auto Balancing Actuator and the emitter flow & return pipes or the inlet and outlet of the manifold.

  • Normally Closed
  • Short response time - 30 seconds
  • High precision motor
  • Constant temperature - no more too hot or too cold rooms
  • Modulates the valves opening to maintain an optimal ΔT
  • 2-piece pipe sensors will measure flow and return temperatures
  • Low power consumption - less than 0,5 W
  • Available in 230 V and 24 V version
  • 5 year warranty

Tested and approved by 

Supply  THB230 - 230 V AC 50/60 Hz
 THB24 - 24 V AC / DC
Rating max  0.5 W
Valve open/close time  30 sec.
Temp. sensor resolution  0.1°C
Protection degree  IP54
Thread's size  M30 x 1.5
Dimension [mm]  W-93 H-x38 D-54


How does it work?
To correctly balance the flow of heated water through the UFH circuit the flow rate needs to be regulated: too much flow will lower the ∆T below 7°C and the circuit will ’’heat up too fast’’, too little flow will increase the ∆T above 7°C and the circuit will ‘’heat up too slowly’’.

The ABA is the answer for ‘’getting effective control of UFH circuit’’. ABA will constantly measure the ∆T via the two temperature sensors and adjust the valve position by closing or opening its slightly. All to maintain constant 7°C temperature differential (between the emitter flow and return pipes) and make your UFH circuit really effective - economy, convenient.