The device VD21A01KNX is a motorised valve drive for heating or cooling valves; Screw onto valve head. The valve drive is matched to standard valve base types using an M30×1.5 connection. In the basic setting, the valve drive fits the valve bases of make Heimeier. Adapters must be used for valve bases of other manufacturers. No function guarantee can be accepted for this.

Product characteristics

– Integrated temperature sensor
– Room temperature control
– Mechanical display of the valve stroke
– Automatic detection of the valve stroke
– An input, which can be used as a binary input
– Use in heating circuit distributor possible
– Integrated bus coupling unit
– Valve protection function

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