Belimo B320 Valve

The Belimo B320 is a high-performance 3-way characterized control valve designed for precise flow regulation in demanding HVAC systems. Featuring a 3/4 inch NPT connection and a 14 Cv rating, this valve utilizes a nickel-plated forged brass body combined with a stainless steel ball and stem to ensure long-term reliability in both chilled and hot water applications. The A-port is engineered with an equal percentage flow characteristic via a specialized Tefzel flow characterizing disc, while the B-port is modified to maintain a constant common port flow, making it an ideal solution for hydronic bypass and mixing configurations. Rated for temperatures up to 250°F and compatible with up to 60% glycol solutions, the B320 provides the durability required for closed-loop systems. Contractors benefit from the blow-out proof stem design and high close-off pressure ratings, ensuring stable modulating control and preventative protection against leakage in high-velocity piping networks.

• Optimized Flow Control: The equal percentage curve on the A-port prevents hunting and stabilizes room temperatures.
• Corrosion Resistance: Stainless steel trim prevents scale buildup and premature failure in aggressive fluid environments.
• Zero Leakage: Rated for zero percent leakage at 200 psi, reducing energy loss and improving system efficiency.
• Actuator Compatibility: Designed for seamless integration with Belimo LR, AR, and NR series actuators.

What is the maximum pressure drop for the Belimo B320?
This high-flow ball valve is rated for a maximum differential pressure of 50 psi for quiet operation, though it can handle significantly higher close-off pressures depending on the paired actuator.

Is this valve suitable for steam applications?
No, the Belimo B320 is specifically designed for water and glycol-based hydronic systems. It should not be used in steam or open-loop domestic water systems.

Can the flow characterizing disc be removed?
The disc is factory-installed to provide the equal percentage flow characteristic; removing it would result in a high-gain linear flow that may cause control instability.

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.