Belimo B341+AFRB24-S Ball Valve with Actuator Spring Return - 1.5 3-Way 24V

The Belimo B341+AFRB24-S is a complete valve and actuator assembly designed for precise control of heating, cooling, and mixing applications in HVAC systems. This package combines a 1.5-inch three-way brass ball valve with a 24-volt on/off actuator featuring spring return functionality.

Key Specifications:

• Valve size: 1.5 inches (40mm) threaded connections
• Configuration: 3-way characterized control valve (CCV)
• Flow coefficient (Cv): 46
• Actuator torque: 180 inch-pounds
• Power supply: 24VAC/DC
• Control type: On/Off with spring return to normally open or closed position
• Manual override: Available via selector switch

Features:

• Spring return actuator ensures fail-safe operation during power loss
• Characterized ball valve provides linear flow characteristics for precise temperature control
• Compact design suitable for tight mechanical room installations
• Selector switch allows manual positioning for maintenance and troubleshooting
• Durable brass construction for long service life
• Factory assembled and tested for reliable performance

This valve assembly is ideal for mixing and diverting applications in chilled water, hot water, and glycol-based hydronic systems. The spring return feature provides automatic positioning during power failures, making it suitable for critical HVAC applications requiring fail-safe operation.