Belimo B211+TR24-SR Stainless Steel Control Valve with Actuator Cv - 1/2 2-Way 1.9 24V

The Belimo B211+TR24-SR is a complete valve assembly combining a compact 1/2-inch two-way stainless steel ball valve with an integrated TR24-SR non-spring return actuator. This precision control valve features a flow coefficient (Cv) of 1.9, making it ideal for small zone control applications in HVAC systems where accurate modulating control of water flow is required.

Key Features:

• 1/2-inch NPT threaded connections for easy installation in small-bore piping systems
• Two-way characterized control valve (CCV) design for precise flow modulation
• Stainless steel valve body and ball provide excellent corrosion resistance and durability
• 1.9 Cv flow coefficient suitable for zone control and small equipment applications
• Non-spring return (non-fail-safe) actuator for precise positioning without battery backup requirements
• 24V AC/DC universal voltage operation for flexible installation
• 2-10 VDC modulating control signal for proportional flow control
• Compact direct-coupled design eliminates mounting brackets and reduces installation time

This valve assembly is commonly used in hydronic heating and cooling systems for zone control, fan coil units, unit heaters, and small air handling units. The TR24-SR actuator provides smooth, quiet modulating control with a non-spring return function that holds the valve position during power loss. The characterized ball design ensures linear flow characteristics throughout the control range, improving system stability and comfort.