Belimo B318+TR24-SR-T 3/4" 3-Way Proportional Valve Actuator Assembly 24V 7.5Cv

The Belimo B318+TR24-SR-T is a complete valve and actuator assembly designed for modulating control in HVAC hydronic systems. This unit combines a 3/4-inch threaded 3-way brass valve body with a 24VAC/DC proportional control actuator, providing precise flow control for heating and cooling applications.

Key Specifications:

• Valve Size: 3/4 inch NPT threaded connections
• Valve Configuration: 3-way mixing/diverting design
• Flow Coefficient (Cv): 7.5
• Actuator Type: Proportional (modulating) control
• Power Supply: 24V AC/DC
• Control Signal: 0-10V DC or 2-10V DC
• Spring Return: Non-spring return (NSR) - requires power to hold position
• Run Time: Approximately 150 seconds
• Torque: Suitable for B318 valve body requirements

Features and Benefits:

• Pre-assembled and factory tested for quick installation
• Proportional control provides precise temperature management
• Non-spring return design maintains position during power failure
• Compact actuator design for tight mechanical room installations
• Compatible with standard building automation systems
• Brass valve body provides corrosion resistance and durability
• Position indication for visual verification of valve status

This valve actuator assembly is ideal for chilled water, hot water, and hydronic heating/cooling systems requiring accurate proportional control. The 7.5 Cv rating makes it suitable for moderate flow applications in commercial HVAC systems.