Thermostatic angled valve DN20 with presetting DANFOSS

The DANFOSS thermostatic angled valve DN20 with factory presetting is designed to control coolant flow to radiators and heating circuits in residential and commercial installations. The angled body and DN20 connection size provide a compact solution for wall-mounted radiators and heating manifolds, while the integrated presetting enables accurate balancing of flow rates prior to thermostat attachment. The valve is suitable for closed hot-water heating systems and supports stable temperature regulation when paired with thermostatic heads.

Advantages

This thermostatic angled valve offers factory presetting for consistent flow control and simplified commissioning, reducing the need for on-site adjustments. The angled design enables neat installation close to the radiator outlet, saving space and improving accessibility. Manufactured by a recognized heating component brand, the valve is built for compatibility with standard thermostatic heads and for long-term, maintenance-friendly operation in typical heating system conditions.

Suitable for

• Wall-mounted radiators requiring DN20 inlet/outlet connections
• Residential and commercial hot-water heating circuits
• Systems where presetting and hydraulic balancing are needed before thermostat installation
• Retrofit and new-build radiator installations with angled valve orientation

Key specifications

• Connection size: DN20 angled connection suitable for radiator valves
• Factory presetting: integrated flow limitation for commissioning and balancing
• Application: closed hot-water heating systems for radiators and heating circuits
• Compatibility: designed for use with standard thermostatic actuator heads
• Installation orientation: angled body optimized for radiator connection close to the wall

How to use

Prior to installation, verify system compatibility with a DN20 angled valve and ensure the heating system is depressurized. Fit the valve to the radiator inlet according to manufacturer torque recommendations and secure the connection with appropriate fittings. Set the factory presetting to the required flow rate or leave at the manufacturer default for later balancing. After mounting a thermostatic head, check for leaks and operate the heating system to confirm stable temperature control and balanced flow across the system.

Usage recommendations

For best results, perform hydraulic balancing of the heating system after installation and head mounting; use the presetting to limit maximum flow during balancing, then fine-tune with the thermostatic head. Regularly inspect connections and moving parts during scheduled maintenance to ensure reliable operation.