Belimo B325 Valve

The Belimo B325 is a high-performance 1-inch NPT 3-way ball valve engineered for precision control in hydronic systems. Featuring a 30 Cv rating, this valve utilizes an equal percentage flow characteristic in the A-port to ensure linear heat transfer, while the B-port is modified to maintain constant common port flow in bypass configurations. Constructed with a nickel-plated forged brass body and a 340 stainless steel ball and stem, the B325 is designed to operate in temperatures ranging from 0°F to 250°F, making it suitable for chilled or hot water applications. It supports up to 60% glycol solutions, providing versatility for diverse HVAC environments. The TEFZEL valve seats and EPDM O-rings ensure a tight seal and high close-off pressure, reducing maintenance overhead in the field. This characterised control valve (CCV) is compatible with various Belimo rotary actuators, allowing for seamless integration into existing BAS (Building Automation Systems).

• Corrosion Resistance: The 304 stainless steel ball and stem prevent scaling and premature wear in harsh hydronic environments.
• Precise Modulation: Specialized disc design within the ball ensures equal percentage flow for stable temperature control.
• High Temperature Rating: Capable of handling hot water systems up to 250°F without compromising internal seal integrity.
• Field Versatility: Standard 1-inch NPT connections and a high 30 Cv flow coefficient accommodate a wide range of terminal unit requirements.

Common Questions

Can the Belimo B325 be used in steam applications?
No, this specific model is rated for chilled or hot water and glycol solutions only. For steam requirements, a stainless steel globe valve or a high-temperature rated VRP ball valve series should be selected.

What is the maximum close-off pressure for this valve?
The Belimo B325 provides a 200 psi close-off rating, ensuring the valve remains leak-proof against high differential pressures common in large-scale commercial piping loops.

Is this valve field-serviceable?
While the actuator can be replaced or serviced easily, the internal ball and seats of the B325 are factory-sealed to maintain the integrity of the characterised flow disc.

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.