Belimo B307B+TR24-SR/300 3-Way Zone Valve 1/2" NPT 0.3 Cv Bronze 24V Proportional

The Belimo B307B+TR24-SR/300 is a compact control valve assembly designed for precise modulating control in HVAC hydronic systems. This unit combines a bronze 3-way zone valve body with an integrated proportional actuator for accurate temperature and flow control in heating and cooling applications.

Valve Specifications:

• 3-way mixing/diverting valve configuration
• 1/2" NPT threaded connections
• 0.3 Cv flow coefficient for small zone applications
• Bronze body construction for durability and corrosion resistance
• Non-spring return actuator design

Actuator Features:

• 24V AC/DC power supply
• 2-10V DC proportional control signal
• Electronic modulating control for precise positioning
• Compact design for space-constrained installations
• Factory-mounted and tested for reliable operation

This valve assembly is ideal for small zone control applications, fan coil units, unit heaters, and other HVAC equipment requiring precise proportional control. The non-spring return actuator maintains its position during power failure, making it suitable for applications where fail-safe positioning is not required.