Belimo B310B Valve

The Belimo B310B is a professional-grade 1/2 inch NPT 3-way characterized control valve engineered for precision in hydronic systems. This nickel-plated forged brass valve features a 1.2 Cv rating and utilizes a specialized A-port equal percentage flow characteristic to ensure linear heat output from coils, while the modified B-port maintains constant common port flow. Built to handle chilled or hot water systems with up to 60% glycol solution, the assembly includes a chrome-plated brass ball and a nickel-plated brass stem designed to withstand temperatures up to 250°F. This mixing or diverting valve is a reliable choice for HVAC control valve applications requiring tight shut-off and stable modulation. By integrating a specialized Tefzel characterizing disc, the Belimo B310B eliminates the hunting common in standard ball valves, providing a stable pressure independent feel for precise hydronic flow control in demanding commercial environments.

• Optimized Flow Control: The A-port equal percentage characteristic ensures predictable system performance and stable temperature regulation.
• Durable Construction: High-quality nickel-plated forged brass body and EPDM O-rings provide long-term reliability in high-temperature applications.
• Glycol Compatible: Rated for use with up to 60% glycol, making it versatile for both heating and cooling loops.
• High Close-off Pressure: Designed to maintain 100% bubble-tight shut-off, preventing leakage and energy waste in the bypass or coil.
• Reduced Maintenance: Blowout-proof stem design and stainless steel/brass internals resist mineral buildup and mechanical wear.

What is the maximum operating temperature for the Belimo B310B?
This valve is rated for media temperatures up to 250°F (120°C), making it suitable for high-temperature hot water systems and standard chilled water setups.

Can this 3-way valve be used for both mixing and diverting?
Yes, the Belimo B310B is designed for versatility in piping configurations, acting effectively as a mixing valve or a diverting valve depending on the actuator orientation and piping layout.

Which actuators are compatible with the B310B?
It is designed to work seamlessly with Belimo LR, AR, and NR series actuators. Always verify torque requirements and linkage compatibility before field installation.

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.