Thermostatic Radiator Valve and Head DANFOSS RA‑N DN15 (for 15 mm connections)

Thermostatic Radiator Valve and Head DANFOSS RA‑N DN15 (for 15 mm connections) is a compact assembly combining a thermostatic control head and a DN15 valve body designed for direct mounting on radiators with 15 mm pipe connections. The unit automatically modulates water flow to the radiator according to the temperature setpoint, enabling stable room temperature control and contributing to efficient heating system operation in residential and light commercial installations.

Advantages

The DANFOSS RA‑N DN15 integrates the sensor and valve into a single factory-matched set, providing reliable proportional control of flow without additional adjustment. Its compatibility with 15 mm connections simplifies installation on common radiator tails, while the compact design minimizes visual impact. Built for continuous operation, the assembly supports energy-efficient regulation by reducing overheating and maintaining steady comfort levels.

Suitable for

• Domestic radiator installations with 15 mm pipe connections
• Small commercial or office radiators where individual room control is required
• Retrofit projects replacing manual valves with thermostatic control

Key specifications

• Connection size: 15 mm
• Valve type: Thermostatic radiator valve with integrated head
• Control principle: Automatic temperature-dependent flow regulation
• Mounting: Direct on radiator tail with 15 mm compression or push-fit connection
• Application: Hot water central heating systems
• Materials: Corrosion-resistant valve body and thermal sensing element (manufacturer standard materials)

How to use

Fit the valve body to the radiator inlet compatible with a 15 mm connection, ensuring sealing and alignment according to the radiator and pipe system requirements. Attach the thermostatic control head to the valve body until it clicks or seats firmly, following the manufacturer’s mounting orientation. Set the desired room temperature by rotating the control head to the chosen position; the valve will then modulate flow automatically to maintain the setpoint. Periodic visual checks and occasional removal of the head for cleaning or inspection are recommended to ensure continued operation.

Usage recommendations

Install on radiators with 15 mm connections and pair with correctly balanced heating circuits for optimal temperature control and energy efficiency. Avoid covering the control head with curtains or furniture that could obstruct air circulation around the sensor. For systems with radiators in high or low flow conditions, verify system balancing and, if necessary, adjust thermostatic settings to achieve uniform comfort across rooms.