mixing valves and actuators
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Actuator - for IVAR MIX and KZ mixing valves - 24V (continuous 0-10V); 5Nm; 70s
A three-way mixing valve blends the supply (hotter) and return (cooler) branch of the heating water so that water with a regulated temperature enters the circuit – typically when feeding a low-temperature circuit (for example underfloor heating) from a shared high-temperature source. Valves in the MIX and KS series are supplied in a 3/4" connection with a flow coefficient Kv of 4, 6 or 8.
Actuators with a 24 V or 230 V supply and a torque of 5 or 10 Nm are available for the valves, including a version with a 0-10 V input for continuous control. The range also includes an end-of-travel switch to signal the extreme position of the actuator, useful for example when controlling a circulation pump.
Frequently asked questions
- What is a three-way mixing valve used for? It blends hot and return water from the heating circuit so that the outlet water has the required, usually lower, temperature, for example for underfloor heating fed from a shared boiler.
- What is the difference between a 24 V and a 230 V actuator? It is the supply voltage of the actuator – the choice depends on what voltage is fed to the control system; a 24 V actuator is usually combined with low-voltage control, while 230 V is connected directly to the mains.
- What is an end-of-travel switch and when is it needed? The end-of-travel switch signals that the actuator has reached the extreme position of the valve, which is used for example to automatically switch on the circulation pump only when the valve is open.