Belimo B318+LRB24-SR Modulating Ball Valve with Actuator CV - 3/4 3-Way 7.4 24V

The Belimo B318+LRB24-SR is a high-performance 3/4-inch 3-way brass ball valve assembly featuring an integrated LRB24-SR electronic modulating actuator. This versatile valve system is engineered for precise control of heating, cooling, and mixing applications in commercial HVAC systems.

Key Specifications:

• Valve size: 3/4 inch (DN20) threaded connections
• Flow coefficient (Cv): 7.4 for optimal flow capacity
• Valve type: 3-way brass ball valve for diverting or mixing service
• Actuator voltage: 24V AC/DC
• Control signal: 0-10 VDC modulating input for proportional control
• Spring return: Non-spring return (NSR) for fail-in-place safety
• Running time: 150 seconds for 90-degree rotation
• Torque rating: 35 lb-in (4 Nm) for reliable operation

Features:

• Electronic modulating control provides precise positioning throughout the full valve travel
• Non-spring return design maintains valve position during power loss
• Compact, direct-mount design simplifies installation and reduces space requirements
• Manual override for emergency operation and commissioning
• Auxiliary switches available for system status feedback
• Durable brass valve body with reinforced fiberglass actuator housing
• Wide operating temperature range from -22°F to 131°F (-30°C to +55°C)

Ideal for hydronic heating and cooling systems, fan coil units, radiant floor heating, and chilled water distribution where accurate temperature control and energy efficiency are critical. The 0-10 VDC control interface ensures seamless integration with building automation systems and DDC controllers.