Rotary valve HRB3 PN10 25/6.3 065Z0406

Rotary valve for heating systems – reliable regulation from Danfoss

The HRB3 PN10 25/6.3 rotary valve is designed to work with Danfoss AMB 162 and AMB 182 actuators. It is an ideal solution in temperature control systems in heating circuits where precise valve characteristics are not required, and a small closing leakage is acceptable – typical for most boiler installations. Made of dezincification-resistant brass (DZR), it ensures durability and corrosion resistance.

This valve is characterized by a nominal diameter of DN 25 and a Kvs value of 6.3, which translates to an appropriate medium flow rate. Both connection 1 and connection 2 are metric internal threads, which facilitates installation and integration with the existing installation. The maximum working pressure is 10 bar (PN10).

Design and application

The HRB3 valve is designed with simplicity and functionality in mind. Its brass construction provides strength, and metric threaded connections make installation easier. The ability to use up to 50% antifreeze content expands its range of applications. Three connection ports of the same size (33.7 mm) increase installation flexibility.

This valve is primarily used in:

• Central heating systems
• Heating boilers
• Water temperature control systems
• Heating installations requiring reliable flow control

Key product features

• Material: Dezincification-resistant brass (DZR) – guarantees durability and corrosion resistance.
• Performance: Kvs value of 6.3 ensures optimal medium flow in the installation.
• Compatibility: Designed to work with Danfoss AMB 162 and AMB 182 actuators.
• Pressure: Maximum working pressure of 10 bar (PN10) – safe operation under standard conditions.
• Versatility: Can be used with media containing up to 50% antifreeze.
• Weight: Low net weight (0.32 kg) makes it easy to transport and install.
• Dimensions: Valve height is 92 mm, allowing it to be installed even in limited spaces.