for radiator valves, small valves and Combi valves
Electrothermal actuators, stem extended in a deenergized state (NC) for 2-position and quasi-proportional control of heating systems, chilled ceilings and terminal units. With position indication.
Suited for valves:
Additional info
For fitting to valve: Cap nut M30 x 1.5
SIEMENS
Siemens AV64, S55174-A166 Adapter for Pettinaroli M28 x 1.5 For fitting actuators to radiator valves of other manufacture.
SIEMENS
Siemens STA121.40L10, S55174-A219 for radiator valves and floor heatingElectrothermal actuators, stem extended in a deenergized state (NC) for 2-position and quasi-proportional control of heating...
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Siemens STA326.40L10, S55174-A224 for radiator valves and floor heatingElectrothermal actuators, stem extended in a deenergized state (NC) for 2-position and quasi-proportional control of heating...
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Siemens STP121.40L10, S55174-A221 for radiator valves and floor heatingElectrothermal actuators, stem extended in a deenergized state (NC) for 2-position and quasi-proportional control of heating...
SIEMENS
Siemens STP321.40L10, S55174-A220 for radiator valves and floor heatingElectrothermal actuators, stem extended in a deenergized state (NC) for 2-position and quasi-proportional control of heating...
SIEMENS
Siemens STP161.40L10, S55174-A223 for radiator valves and floor heatingElectrothermal actuators, stem retracted in a deenergized state (NO) for 2-position and quasi-proportional control of heating...
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Siemens AL431, S55174-A168 Theft protection Tamper-proof fitting to prevent dismantling of the actuator HS Code: 8
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Siemens STA121.65L20, S55174-A205 Thermal Actuator AC/DC24V NC 6.5mm 2m on/off for radiator valves, small valves and Combi valvesElectrothe
SIEMENS
Siemens STA161.40L10, S55174-A222 for radiator valves and floor heatingElectrothermal actuators, stem extended in a deenergized state (NC) for 2-position and quasi-proportional control of heating...
GBP 
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