Belimo B311+LF24-SR Stainless Steel Control Valve with Actuator - 1/2 3-Way

The Belimo B311+LF24-SR is a compact 1/2-inch three-way characterized control valve (CCV) assembly designed for precision hydronic control in HVAC systems. This unit combines a stainless steel valve body with an integrated LF24-SR spring return actuator for reliable mixing or diverting applications.

Key Specifications:

• Valve size: 1/2 inch (DN 15) with threaded NPT connections
• Flow coefficient (Cv): 1.9 for precise flow control
• Three-way configuration for mixing or diverting service
• Stainless steel valve body for corrosion resistance and durability
• 24V AC/DC power supply for flexible installation
• Spring return actuator for fail-safe operation
• 2-10 VDC modulating control signal for proportional control
• Close-off pressure rating ensures tight shutoff

Features and Benefits:

• Compact design saves space in mechanical rooms and tight installations
• Spring return mechanism provides automatic positioning during power failure
• Proportional control with 2-10V signal enables precise temperature regulation
• Stainless steel construction ensures long service life in demanding applications
• Direct-mount actuator eliminates coupling and reduces installation time
• Suitable for hot water, chilled water, and glycol solutions

Ideal for use in fan coil units, VAV terminal units, radiant heating systems, and other hydronic applications requiring reliable three-way valve control. The Belimo B311+LF24-SR provides the precision and dependability expected from Belimo's industry-leading valve and actuator technology.