Belimo B308+TR24-SR-T Control Valve with Proportional Actuator - 1/2 3-Way 24V

The Belimo B308+TR24-SR-T is a compact 1/2" threaded 3-way control valve assembly designed for precise modulating control in HVAC hydronic systems. This factory-assembled unit combines a brass valve body with a non-spring return proportional actuator for reliable flow control in heating and cooling applications.

Key Specifications:

• Valve size: 1/2" NPT threaded connections
• Flow coefficient (Cv): 0.46
• Valve configuration: 3-way mixing/diverting
• Actuator type: Non-spring return (NSR) proportional control
• Control signal: 2-10 VDC modulating input
• Power supply: 24 VAC/VDC
• Terminal connection for easy field wiring

Features and Benefits:

• Factory-assembled valve and actuator combination ensures proper sizing and compatibility
• Non-spring return design maintains position on power loss for fail-in-place operation
• Proportional 2-10 VDC control signal provides precise modulating control for optimal comfort
• Compact design ideal for space-constrained mechanical rooms and terminal units
• Brass construction offers durability and corrosion resistance
• Terminal connection simplifies installation and field wiring

This valve assembly is suitable for hydronic heating and cooling systems, fan coil units, radiant systems, and other applications requiring accurate flow modulation. The 3-way configuration allows for mixing or diverting service depending on piping arrangement.