Belimo B250 Valve

The Belimo B250 is a 2-way characterized control valve designed for high-performance hydronic systems. Featuring a 2-inch NPT connection and a 57 Cv rating, this valve utilizes an integrated Tefzel characterising disc to maintain an equal percentage flow characteristic. This design ensures stable control loop response by linearizing heat exchanger output. The nickel-plated forged brass body is complemented by a 304 stainless steel ball and stem, providing superior durability against corrosion and scale buildup compared to standard brass internals. Engineered for use in chilled or hot water systems, the assembly supports media temperatures up to 212°F and concentration levels of up to 60% glycol solution. The blowout-proof stem and EPDM O-rings ensure long-term reliability in demanding HVAC applications.

• Precision Flow Control: The equal percentage flow curve prevents hunting in the control loop, extending actuator life and improving system efficiency.
• Superior Metallurgy: Stainless steel ball and stem prevent pitting and provide high chemical resistance in glycol-based systems.
• High Close-off Pressure: Designed to handle high differential pressures without leakage, maintaining system integrity.
• Maintenance-Free Design: No packing nuts to tighten or seats to replace, minimizing field service requirements.
• Universal Actuation: Compatible with various Belimo valve actuators, allowing for flexible field installations.

What is the maximum differential pressure for the Belimo B250?
The Belimo B250 typically supports a close-off pressure of 200 psi, though the specific differential pressure (?P) capacity depends on the torque rating of the attached LR or AR series actuator.

Can this valve be used for steam applications?
No, the B250 is specifically engineered for chilled or hot water and glycol solutions. Use a steam-rated globe or ball valve for vapor phase applications.

Is the flow direction reversible on this 2-way valve?
While technically possible, it is critical to install the valve with the arrow pointing in the direction of flow to utilize the characterising disc correctly for proper 57 Cv performance.

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.