Belimo B217+TR24-3 Valve Assembly

The Belimo B217+TR24-3 is a high-performance 2-way characterized control valve (CCV) assembly engineered for precise fluid regulation in HVAC systems. Utilizing a 3/4 inch NPT forged brass body with a stainless steel ball and stem, this assembly is designed to handle chilled or hot water and up to 60% glycol solutions. The integrated TR24-3 non-spring return actuator provides 18 in-lb of torque with dependable on/off or floating point control, operating on a standard 24VAC/DC power supply. Featuring a 4.7 Cv rating and a patented equal percentage flow characteristic, the B217 valve eliminates control loop hunting and ensures stable performance in variable flow hydronic applications like air handling units and fan coil coils. This maintenance-free motorized ball valve is rated for 600 psi body pressure and remains a staple for contractors prioritizing long-term reliability and zero leakage.

• Precise Flow Control: The built-in characterizing disc ensures an equal percentage flow characteristic, providing linear heat output and preventing system instability.
• Durable Construction: Features stainless steel trim and a nickel-plated brass body to resist corrosion and wear in demanding hydronic environments.
• Versatile Actuation: The TR24-3 actuator offers a 90-second run time and can be powered by either 24VAC or 24Vdc for flexible field wiring.
• High Close-off Pressure: Rated for up to 200 psi close-off, ensuring tight shut-off and zero leakage in high-pressure loops.
• Application Flexibility: Ideal for VAV box reheat coils, unit ventilators, and bypass loops where floating point control is required.

What is the maximum fluid temperature for this assembly?
The assembly is rated for water temperatures ranging from 0°F to 250°F (-18°C to 120°C).

Can the TR24-3 actuator be used with a 4-20mA signal?
No, this specific model is a floating point actuator. For proportional 2-10V or 4-20mA control, a different actuator series (like the LRB24-SR) would be required.

Does this valve require regular maintenance or repacking?
The B217 ball valve design is maintenance-free and does not require repacking, even after extended service life.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.