Thermostatic sensor DANFOSS RA 015G4680 — temperature control valve sensor

Thermostatic sensor DANFOSS RA 015G4680 — temperature control valve sensor is a compact sensing element for thermostatic radiator valves and heating systems. The sensor detects ambient or medium temperature and conveys changes to a compatible valve actuator so the valve can regulate flow and maintain the set temperature. It is designed for use in residential and light commercial heating installations and for maintenance or replacement of compatible DANFOSS components.

Advantages

The sensor provides direct, continuous temperature feedback to thermostatic valve actuators, supporting stable room temperature control. Its compact design allows installation in confined spaces and retrofit into existing valve assemblies. The unit is manufactured to fit standard valve interfaces used by the brand, enabling straightforward replacement without modification of pipework. Accuracy and responsiveness reduce cycling of the heating system and contribute to efficient energy use when integrated with properly configured thermostatic valves.

Suitable for

• Thermostatic radiator valves in residential heating systems
• Replacement of compatible DANFOSS valve sensors during service
• Light commercial heating installations with standard valve interfaces
• Applications where compact temperature sensing is required

Key specifications

• Function: temperature sensing for thermostatic valve control
• Compatibility: designed for use with DANFOSS thermostatic valve actuators and compatible valve bodies
• Installation: intended for direct mounting on valve stem or sensor pocket per valve design
• Ambient/media sensing range: suitable for typical heating system temperatures (room and hot-water influenced environments)
• Form factor: compact sensor body for retrofit and confined-space installation

How to use

Install the sensor on the thermostatic valve according to the valve manufacturer’s instructions, ensuring secure mechanical connection and correct orientation so the sensor element is exposed to the conditioned air or medium. After mounting, connect or attach the compatible actuator or valve head; verify that the actuator receives the sensor input and that the valve moves freely. Adjust the thermostat setpoint at the valve head or room controller and observe system response to confirm correct operation. Replace failed or worn sensors during routine maintenance to retain accurate temperature regulation.

Usage recommendations

Use the sensor with valves and actuators designed for the same family of components to ensure mechanical fit and correct control behaviour. Avoid installing the sensor in locations with direct drafts, radiant heat sources, or other local influences that could distort ambient temperature readings. For longevity, perform periodic inspections and replace the sensor when sensing accuracy or actuator response degrades.