Belimo B340+ARB24-SR Valve Assembly

The Belimo B340+ARB24-SR is a professional-grade 1-1/2 inch 3-way characterized control valve (CCV) engineered for precision flow control in hydronic systems. This assembly features a stainless steel ball and stem to resist scaling and corrosion, paired with a Cv of 31 for high-demand applications. The ARB24-SR non-spring return actuator delivers 180 in-lb of torque, ensuring reliable positioning under full differential pressure. Operating on a 24V AC/DC power supply, it utilizes a 2-10 VDC proportional control signal for seamless integration with BMS controllers. The NPT female end connections simplify field installation, while the blow-out proof stem design enhances safety. This HVAC mixing valve is ideal for air handling units and heat exchangers where accurate modulating control is critical. With its A-port characterized disc, the assembly provides an equal percentage flow characteristic, preventing hunting and improving overall system stability in chilled or hot water loops.

Key Benefits

• Stainless Steel Trim: Enhanced durability for long-term service in various water chemistries.
• High Torque Actuation: The 180 in-lb motor ensures positive shut-off and consistent modulation.
• Universal Compatibility: Works with standard 2-10 VDC or 4-20 mA signals used in building automation systems.
• Zero Leakage: Rated for A-port bubble-tight shut-off, reducing energy waste in bypass configurations.
• Field Adjustable: Simple manual override allows for easy commissioning and troubleshooting.

Common Questions

What is the maximum fluid temperature for the B340 valve?
The standard B340 series is typically rated for media temperatures ranging from 0°F to 250°F (-18°C to 120°C).

Can the ARB24-SR actuator be used for 4-20 mA control?
Yes, by installing a 500-ohm resistor, the 2-10 VDC input can be converted to accept a 4-20 mA signal.

Is this a fail-safe assembly?
No, this is a non-spring return assembly. It will maintain its last position upon loss of power.

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.