Belimo B350+AFRB24-SR 2-Inch 3-Way Characterized Control Valve with Actuator

The Belimo B350+AFRB24-SR is a complete characterized control valve assembly combining a 2-inch three-way brass valve body with an AFRB24-SR spring return actuator. This assembly delivers precise flow control for HVAC hydronic systems with a flow coefficient (Cv) of 57, making it ideal for medium to large commercial applications.

Key Specifications:

• Valve Size: 2 inches with threaded NPT connections
• Configuration: 3-way mixing/diverting service
• Flow Coefficient: 57 Cv for high-capacity applications
• Actuator Torque: 180 in-lb for reliable operation
• Power Supply: 24V AC/DC
• Control Signal: 2-10 VDC modulating control
• Fail-Safe Operation: Spring return to default position on power loss

Features and Benefits:

• Characterized valve design provides linear flow control for precise temperature regulation
• Spring return actuator ensures fail-safe operation during power outages
• Direct-coupled actuator assembly eliminates linkage alignment issues
• Corrosion-resistant brass construction for long service life
• Compatible with standard building automation systems via 2-10 VDC control signal
• Factory assembled and tested for immediate installation

This valve assembly is commonly used in chilled water, hot water, and heating/cooling changeover applications where reliable modulating control and fail-safe operation are required. The spring return feature makes it particularly suitable for critical applications requiring a known valve position during power failure.