Belimo B313B+TFRB24 3-Way Brass Ball Valve with On/Off Actuator, 1/2", 4.7 Cv, 24V

The Belimo B313B+TFRB24 is a complete valve and actuator assembly designed for reliable control in HVAC applications. This unit combines a compact 1/2-inch 3-way brass ball valve (B313B) with a TFRB24 spring return electric actuator, providing precise on/off control for heating, cooling, and mixing applications.

Key Features:

• 1/2-inch threaded connection for easy installation
• 3-way brass ball valve configuration for diverting or mixing service
• 4.7 Cv flow coefficient for efficient flow control
• 24V AC/DC on/off spring return actuator with 22 in-lb torque
• Spring return mechanism provides fail-safe positioning during power loss
• Compact design saves space in mechanical rooms and equipment
• Durable brass construction for long service life
• Direct-mount actuator configuration for simple installation

This Belimo valve assembly is ideal for zone control, fan coil units, unit heaters, and other commercial HVAC applications requiring reliable on/off control. The spring return actuator ensures the valve returns to its default position during power failure, providing critical fail-safe operation. Belimo's reputation for quality and reliability makes this an excellent choice for both new construction and retrofit projects.