Belimo B308+LF120-S 1/2" 3-Way Ball Valve with LF120-S Actuator 120V Spring Return

The Belimo B308+LF120-S is a compact 3-way ball valve assembly designed for precise on/off control in HVAC applications. This factory-assembled unit combines a 1/2" brass ball valve with an LF120-S spring return actuator for reliable performance in heating, cooling, and ventilation systems.

Key Specifications:

• Valve size: 1/2" NPT threaded connections
• Flow coefficient (Cv): 0.46
• 3-way ball valve configuration for diverting or mixing service
• Spring return actuator with 120V AC power supply
• On/Off control (2-position operation)
• Fail-safe spring return to normal position on power loss
• Quick mounting and commissioning with factory assembly
• Auxiliary switch for position feedback

Features & Benefits:

• Factory-assembled valve and actuator combination ensures proper pairing and reduces installation time
• Compact design ideal for space-constrained applications
• Spring return mechanism provides fail-safe operation for critical systems
• Durable brass construction resists corrosion in water and glycol applications
• Suitable for heating and cooling coil control, mixing applications, and changeover systems

The Belimo B308+LF120-S is ideal for commercial HVAC systems requiring reliable on/off control with fail-safe spring return functionality. The small valve size and compact actuator make it perfect for zone control, fan coil units, and other applications where space is limited.