Belimo B218B+LF24-SR 3/4" Proportional Ball Valve with LF24-SR Actuator

The Belimo B218B+LF24-SR is a complete valve assembly combining a 3/4-inch two-way brass ball valve with an LF24-SR spring return actuator. This proportional control valve features a 7.4 Cv rating and operates on 24V power, making it ideal for hydronic HVAC applications requiring modulating control with fail-safe positioning.

Key Features:

• 3/4-inch NPT threaded connections for easy piping integration
• 7.4 Cv flow coefficient for medium flow capacity applications
• Spring return actuator provides fail-safe positioning on power loss
• 0-10 VDC or 2-10 VDC proportional control signal input
• 24V AC/DC power supply operation
• Characterized ball design for precise modulating control
• Brass valve body construction for durability and corrosion resistance
• Factory assembled and tested for reliable operation

This valve assembly is designed for use in chilled water, hot water, and glycol solution systems up to 250°F. The proportional actuator allows precise flow modulation based on control signals from building automation systems, thermostats, or other control devices. The spring return feature automatically drives the valve to its fail-safe position during power interruption, making it suitable for safety-critical applications.