Belimo B309B+TR24-SR 1/2" NPT 3-Way Bronze Control Valve with Proportional Actuator

The Belimo B309B+TR24-SR is a compact 3-way characterized control valve assembly designed for precise hydronic system control in commercial HVAC applications. This valve features a 1/2" NPT threaded connection with a bronze body construction for durability and corrosion resistance.

Key Specifications:

• Valve size: 1/2" NPT female threaded connections
• Configuration: 3-way mixing/diverting valve
• Flow coefficient (Cv): 0.8
• Body material: Bronze
• Actuator: TR24-SR with non-spring return operation
• Power supply: 24V AC/DC
• Control signal: 2-10V DC proportional control
• Running time: Approximately 150 seconds

Features and Benefits:

• Characterized control valve (CCV) provides linear flow characteristics for accurate temperature control
• Non-spring return actuator maintains position on power loss
• Proportional 2-10V control input for modulating applications
• Compact integrated design simplifies installation
• Factory assembled and tested for reliable performance
• Suitable for heating and cooling applications in fan coil units, unit ventilators, and small air handlers

This valve assembly is ideal for applications requiring precise flow control in hydronic systems, including hot water heating, chilled water cooling, and heat pump systems. The bronze construction ensures long service life in potable water and glycol-based systems.