Belimo B312B Valve

When you need a reliable 3-way ball valve for precise hydronic control, the Belimo B312B valve is a robust choice. This 1/2" NPT valve, featuring a 3.0 Cv, is engineered for demanding HVAC applications. Its nickel-plated forged brass body, chrome-plated brass ball, and nickel-plated brass stem ensure durability and chemical resistance, making it suitable for chilled or hot water systems up to 250°F (120°C), including those with up to 60% glycol solution. The A-port provides an equal percentage flow characteristic, while the B-port is modified for constant common port flow, ensuring stable regulation. With a 600 psi body pressure rating and a 200 psi close-off pressure, this characterized control valve (CCV) is designed for longevity and consistent performance in critical systems like air handling units, fan coil units, Unit Ventilators, VAV box re-heat coils, and bypass loops. It's a maintenance-free component, built to integrate seamlessly into variable or constant flow hydronic systems.

Key Benefits

• Precise Flow Control: A-port equal percentage flow characteristic and B-port modified for constant common port flow ensure accurate modulation.
• Durable Construction: Nickel-plated forged brass body, chrome-plated brass ball, and nickel-plated brass stem provide excellent resistance to corrosion and wear.
• Wide Application Range: Ideal for chilled or hot water systems up to 250°F and compatible with up to 60% glycol solutions.
• Enhanced System Stability: Designed to prevent control loop "hunting," extending the lifespan of connected components and optimizing energy use.
• High Pressure Ratings: Features a 600 psi body pressure rating and 200 psi close-off pressure for reliable operation in demanding environments.

Common Questions

• What are the primary applications for the Belimo B312B? This valve is typically used in air handling units, fan coil units, Unit Ventilators, VAV box re-heat coils, and bypass loops within hydronic systems.
• Can this valve be used with glycol solutions? Yes, it is compatible with water solutions containing up to 60% glycol.
• What is the maximum operating temperature? The valve is rated for fluid temperatures up to 250°F (120°C).
• Is the Belimo B312B suitable as a change-over valve? No, this valve is not designed for use as a change-over valve.

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.