Belimo B307B+LRB24-3-S 1/2" Characterized Control Valve with Actuator

The Belimo B307B+LRB24-3-S is a compact characterized control valve assembly designed for precise fluid control in HVAC and hydronic heating/cooling systems. This factory-assembled package combines a B307B brass ball valve body with an LRB24-3-S spring return electric actuator for reliable, maintenance-free operation.

Key Specifications:

• Valve size: 1/2 inch NPT threaded connections
• Flow coefficient (Cv): 0.3 - ideal for small zone control applications
• Actuator voltage: 24V AC/DC
• Control type: Non-spring return (NSR) with 2-position or floating control
• Actuator timing: 3-second stroke time (90° rotation)
• Characterized ball design provides linear flow characteristics
• Compact brass valve body with stainless steel ball and stem
• Direct mount actuator eliminates field assembly

Features & Benefits:

• Factory-assembled and tested for immediate installation
• Spring return actuator ensures failsafe positioning during power loss
• Low power consumption for energy-efficient operation
• Wide operating pressure range suitable for most hydronic systems
• Suitable for chilled water, hot water, and glycol solutions
• Manual override feature for service and testing

This control valve assembly is ideal for small zone control, radiant heating/cooling circuits, fan coil units, and other applications requiring precise flow modulation in compact spaces. The characterized ball design ensures consistent control performance across the full operating range.