Belimo B212+TR24-SR-T Valve Assembly

The Belimo B212+TR24-SR-T is a precision-engineered 2-way characterized control valve (CCV) assembly designed for modulated hydronic cooling and heating applications. This 1/2-inch NPT valve features a stainless steel ball and stem, providing superior durability and resistance to scaling compared to brass components. With a Cv of 3.0, the B212 utilizes a specialized glass-filled polymer disc to ensure a linear flow characteristic, preventing hunting in your control loop. Paired with the TR24-SR-T non-spring return actuator, the assembly operates on 24VAC/DC and responds to a 2-10 VDC modulating signal. Delivering 18 in-lb of torque, this motor ensures reliable positioning for terminal unit control. The TR series actuator features a screw terminal connection for simplified field wiring. This assembly is rated for a maximum fluid temperature of 250°F and is ideal for building automation system (BAS) integrations requiring precise HVAC flow control and high close-off pressure ratings.

• Stainless Steel Trim: Enhanced longevity in open or closed loops, reducing service calls related to valve seat leakage.
• Equal Percentage Flow: Integrated specialized disc ensures predictable heat transfer and stable temperature regulation.
• Sub-Compact Footprint: The TR series actuator allows for installation in tight mechanical closets and fan coil unit cabinets.
• Reliable Close-off: Rated for 200 psi close-off, ensuring tight shut-off and preventing ghost energy usage in the system.
• Easy Commissioning: Standardized 2-10 VDC feedback allows for remote position monitoring via the controller.

What is the difference between the B212 and B212+TR24-SR-T?
The B212 is the bare valve body, while the B212+TR24-SR-T is a complete actuated valve assembly including the 24V modulating motor.

Can this valve be used for steam applications?
No, this CCV assembly is specifically designed for chilled water or hot water systems; steam requires a different seat and packing material.

How do I wire the TR24-SR-T for proportional control?
Standard wiring involves 24V hot (Term 1), Common (Term 2), and the 2-10 VDC control signal (Term 3). Always verify the Belimo actuator wiring diagram for specific controller requirements.

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.