Belimo B229+LF24-MFT Valve Assembly

The Belimo B229+LF24-MFT Valve Assembly is a high-performance Characterized Control Valve (CCV) designed for precise flow regulation in hydronic systems. This 1 1/4 inch NPT assembly features a stainless steel trim and a Cv of 10, providing excellent corrosion resistance and long-term reliability in closed-loop chilled or hot water applications. Driven by the LF24-MFT spring return actuator, this unit delivers 35 in-lb of torque and offers versatile control options, including 4-20mA (via 500 Ohm resistor), PWM (via 1500 Ohm resistor), floating point, and on/off functionality at 24Vac/dc. The integrated Multi-Function Technology (MFT) allows for field customization of input signals and feedback, ensuring seamless integration with existing Building Automation Systems (BAS). Built for tight shut-off, this 2-way valve assembly eliminates leakage and maintains system efficiency under varying pressure drops.

Key Benefits

• Stainless steel ball and stem prevent premature wear and resist scale buildup in demanding hydronic loops.
• Multi-Function Technology (MFT) enables precise field adjustments for control signals and running times.
• True spring return safety ensures the valve returns to its fail-safe position during power loss.
• Characterized disc design provides an equal percentage flow characteristic for stable temperature control.
• High close-off pressure rating prevents ghost flows and improves energy efficiency across the HVAC network.

Common Questions

How do I wire the B229+LF24-MFT for a 4-20mA control signal?
To utilize a 4-20mA signal, wire the actuator for a proportional signal and use an external 500 Ohm resistor to convert the current to the 2-10Vdc range required by the internal logic.

Can this CCV assembly be used in steam applications?
No, the Belimo B229+LF24-MFT is specifically engineered for chilled or hot water systems; it is not rated for steam service.

What is the maximum fluid temperature rating for this valve?
The standard B-series CCV bodies with stainless steel trim are generally rated for a fluid temperature range of 0°F to 250°F (-18°C to 120°C).

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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.