DANFOSS RA-FN 15 A + RLV-S + REDIA click (S) three-piece angled 1/2" valve set

The DANFOSS RA-FN 15 A + RLV-S + REDIA click (S) three-piece angled 1/2" valve set is a compact solution for radiator and heating system connections. The set combines a thermostatic RA-FN 15 A valve, an RLV-S lockshield/regulating valve and a REDIA click (S) quick coupling, providing temperature control, flow balancing and a simple connection point for commissioning and maintenance. It is designed for installations with angled pipework and for both new-build and retrofit projects where a small footprint and reliable component compatibility are required.

Advantages

The combination of a thermostatic control valve, a regulating lockshield and a quick coupling enables accurate room temperature control and easy commissioning without separate adapter fittings. The angled configuration reduces installation space and simplifies connection to radiators with compact inlet positions. Components are designed to work together to facilitate balancing, maintenance and servicing while minimising the risk of leaks during coupling and decoupling.

Suitable for

• Residential radiator installations with angled connections
• Retrofit projects replacing or upgrading radiator valves
• New heating system installations where compact valve sets are needed
• Commissioning and servicing tasks requiring quick coupling

Key specifications

• Valve type: angled three-piece set for radiator connections
• Connection size: 1/2" (half-inch) threaded connections
• Included components: thermostatic radiator valve, lockshield/regulating valve, quick coupling
• Functionality: thermostatic temperature control, manual flow regulation, quick coupling for service
• Installation orientation: angled configuration for compact inlet positions

How to use

Install the valve set in the return or supply line to the radiator according to the radiator manufacturer’s piping recommendations and local regulations. Fit the RA-FN 15 A thermostatic head or compatible actuator to provide automatic temperature regulation. Use the RLV-S lockshield valve to set and lock the desired flow rate to balance the system. Attach the REDIA click (S) coupling when commissioning or servicing to allow safe and rapid connection to test or drain equipment. Ensure connections are tightened to appropriate torque values and the system is flushed and filled following normal heating system procedures.

Usage recommendations

Use the thermostatic valve with compatible thermostat heads and replaceable sensor elements recommended by the manufacturer. During commissioning, set the lockshield to achieve correct radiator flow and verify using differential temperature or flow measurement. For routine servicing, use the quick coupling to isolate the radiator with minimal fluid loss and follow standard safety practices for pressure and temperature.