Belimo B308+TR24-SR/300 3-Way Control Valve with Actuator 1/2" NPT 24V

The Belimo B308+TR24-SR/300 is a compact 3-way characterized control valve (CCV) assembly designed for precise control in HVAC hydronic systems. This factory-assembled unit combines a 1/2" NPT stainless steel valve body with an integrated TR24-SR actuator for reliable performance in mixing and diverting applications.

Key Specifications:

• Valve Size: 1/2" NPT threaded connections
• Cv Rating: 0.46 (flow coefficient)
• Configuration: 3-way valve for mixing or diverting service
• Valve Body Material: Stainless steel construction
• Actuator: TR24-SR with non-spring return operation
• Voltage: 24V AC/DC
• Control Signal: 2-10 VDC proportional modulating control
• Running Time: 300 seconds (5 minutes)

Features:

• Non-spring return (NSR) actuator eliminates need for spring mechanism
• Proportional 2-10 VDC control for precise modulation
• Stainless steel valve body resists corrosion and scaling
• Characterized valve design ensures linear control throughout operating range
• Compact footprint ideal for tight mechanical spaces
• Factory-assembled and tested for plug-and-play installation

This valve assembly is ideal for chilled water, hot water, and heating/cooling coil applications where precise proportional control is required. The non-spring return actuator maintains last position on power failure, making it suitable for both normally open and normally closed applications depending on system requirements.