Danfoss RA-DV Dynamic Valve 1/2" Angle Radiator Valve with Pre-setting

The Danfoss RA-DV Dynamic Valve is a high-performance 1/2-inch angle radiator valve engineered for precise flow control in two-pipe heating systems. By integrating a pressure-independent flow controller directly into the valve body, this component ensures that each radiator receives the exact amount of water required, regardless of pressure variations across the heating network. This advanced design eliminates the need for complex external balancing, contributing to a more stable and efficient indoor climate.

Advantages

The primary benefit of the Danfoss RA-DV is its ability to provide automatic hydraulic balancing, which significantly enhances the energy efficiency of the entire heating system. By maintaining a constant flow rate, the valve prevents overheating in rooms closer to the pump and ensures sufficient heat distribution in more distant areas. Its robust construction and integrated pre-setting mechanism allow for quick and accurate installation, reducing commissioning time while improving overall system performance and occupant comfort.

Suitable for

• Two-pipe central heating systems
• Residential and commercial building renovations
• Hydronic heating installations requiring automatic balancing
• Systems where energy efficiency and temperature stability are priorities

This valve may not be suitable for one-pipe heating systems, as its dynamic flow control mechanism is specifically designed for the pressure dynamics of two-pipe configurations. Additionally, it is not intended for use in steam heating systems or applications where the fluid medium is not compatible with standard hydronic heating components.

Key specifications

• Connection size: 1/2 inch
• Valve type: Angle
• Integrated pressure-independent flow controller
• Adjustable pre-setting mechanism
• Designed for two-pipe heating systems

To use the Danfoss RA-DV, install the valve onto the radiator inlet using standard plumbing practices. Once installed, use the integrated pre-setting scale to adjust the maximum flow rate according to the specific heat requirements of the room. The valve will then automatically regulate the flow based on the system pressure, ensuring consistent performance without further manual intervention.

What to consider before purchase

• Verify that your heating system is a two-pipe configuration
• Ensure the 1/2-inch connection size matches your existing radiator piping
• Check if your system requires specific flow rate settings for optimal balancing

For optimal results, ensure the system is properly flushed and free of debris before installation to prevent interference with the internal flow controller. It is recommended to perform a professional system calculation to determine the correct pre-setting values for each radiator.