Belimo B208B+TR24-SR/300 1/2" NPT 2-Way Control Valve 0.46 Cv with 24V Proportional Actuator

The Belimo B208B+TR24-SR/300 is a compact 2-way control valve assembly designed for precise modulating control in HVAC and building automation systems. This factory-assembled unit combines a 1/2" NPT brass valve body with a 24V non-spring return proportional actuator, providing reliable flow control for hydronic heating and cooling applications.

Key Specifications:

• Valve size: 1/2" NPT threaded connections
• Flow coefficient (Cv): 0.46
• Valve configuration: 2-way globe style
• Control signal: 2-10 VDC proportional
• Power supply: 24 VAC/DC
• Actuator type: Non-spring return (NSR) for fail-in-place operation
• Close-off pressure: 300 PSI

Features and Benefits:

• Pre-assembled and factory tested for quick installation and commissioning
• Proportional control provides smooth, precise modulation for optimal comfort and efficiency
• Non-spring return design maintains valve position during power failure
• Compact footprint ideal for space-constrained mechanical rooms
• Durable brass construction ensures long service life in commercial applications
• Compatible with standard building automation systems using 0-10V control signals

This valve assembly is ideal for small-bore hydronic applications including zone control, fan coil units, unit heaters, and radiant heating/cooling systems. The Belimo quality construction and proven actuator technology deliver reliable performance in commercial and institutional buildings.