DANFOSS 2-piece angled set with RAE-K head and VKO connection module for radiators (mpn 013G5131)

The DANFOSS two-piece angled valve set combines an RAE-K control head with a VKO connection module to provide thermostatic control and an angled connection for panel radiators. Designed for compatibility with many common radiator brands, this set suits both retrofit projects and new installations where a compact angled connection and standardized control interface are required. The components are intended to integrate with radiator bodies that accept VKO-type valve connections and RAE-K control heads.

Advantages

This two-piece angled set offers accurate thermostatic regulation through the RAE-K control head while keeping piping connections compact and space-efficient thanks to the angled VKO module. The modular design simplifies replacement of either the valve body or the control head without needing to alter the radiator connection. Materials and machining are intended to meet typical durability and sealing requirements for central heating systems.

Suitable for

• Panel radiators from compatible manufacturers that accept VKO connections
• Retrofit projects where an angled valve layout is necessary to save space
• New radiator installations requiring thermostatic control with a compact connection
• Systems where the ability to replace control heads independently is preferred

When it may not be suitable

This set is not suitable for radiators that use a different connection standard than VKO or for systems that require integrated valve bodies with non-modular designs. It may also be inappropriate where electronic or remote-controlled thermostatic actuators are required instead of a manual or mechanical control head.

Key specifications

• Configuration: two-piece angled valve set with separate control head and connection module
• Control head type: RAE-K thermostatic interface suitable for mechanical thermostatic operation
• Connection module: angled VKO-type connection for panel radiators
• Application: central heating radiator valve set for hot water systems
• Installation orientation: angled (preferred for side wall proximity or low-clearance installations)

How to use

Mount the VKO connection module to the radiator’s valve inlet following the radiator manufacturer’s instructions and standard plumbing practice. Attach the RAE-K control head to the valve spindle after the hydraulic connections are secured and the system is filled and bled. Adjust the control head to the desired room temperature setting; the thermostatic mechanism will modulate flow through the valve based on temperature changes. For servicing, isolate and drain the section of the system if removal of the valve body is needed, and replace the control head independently if required.

What to consider before purchase

• Verify that your radiator accepts VKO-type connections and is compatible with the RAE-K control head interface
• Confirm valve orientation (left/right) and available clearance for an angled connection
• Check required working pressure and temperature ranges for your heating system to ensure compatibility
• Decide whether a mechanical thermostatic head meets your control needs or if an electronic actuator is preferred

Usage recommendations

Install by a qualified heating engineer and follow local plumbing and heating codes. When replacing existing valves, compare connection dimensions and service clearances. Periodic checks during the heating season help ensure correct operation and may extend service life.