Belimo B212B+TR24-SR/300 2-Way Control Valve 1/2" NPT 3 Cv with 24V Proportional Actuator

The Belimo B212B+TR24-SR/300 is a complete control valve assembly featuring a 1/2" NPT brass ball valve paired with a 24V proportional control actuator. This 2-way valve configuration provides precise flow control with a 3 Cv flow coefficient, making it ideal for HVAC hydronic systems requiring accurate modulating control.

Key Specifications:

• Valve body: 1/2" NPT threaded connections, brass construction
• Flow coefficient: 3 Cv for optimal flow capacity
• Actuator: TR24-SR model with non-spring return operation
• Control signal: 2-10 VDC proportional control
• Power supply: 24 VAC/VDC
• Configuration: 2-way characterized ball valve for modulating service

The non-spring return actuator provides reliable positioning control throughout the full stroke range. The 2-10 VDC control input allows for seamless integration with modern building automation systems and DDC controllers. The brass valve body ensures durability and corrosion resistance in chilled and hot water applications up to 250°F.

This assembly is commonly used in fan coil units, unit heaters, small air handling units, and other terminal equipment requiring precise flow modulation for temperature control.