Belimo B311B+LF24-SR-S Bronze Control Valve with Actuator - 1/2 3-Way

The Belimo B311B+LF24-SR-S is a complete valve and actuator assembly featuring a 1/2" three-way bronze valve body paired with an LF24-SR-S electronic actuator. This control valve assembly is designed for hydronic HVAC systems requiring precise fluid flow control and mixing applications.

Key Specifications:

• Valve Size: 1/2" NPT threaded connections
• Valve Type: 3-way diverting/mixing configuration
• Flow Coefficient (Cv): 1.9
• Valve Body Material: Bronze construction for durability and corrosion resistance
• Actuator Voltage: 24V AC/DC
• Control Signal: 2-10 VDC modulating control
• Spring Return: Equipped with spring return mechanism for fail-safe operation
• Auxiliary Switch: Integrated auxiliary switch for status feedback

Features:

• Compact close-coupled valve (CCV) design saves installation space
• Electronic actuator provides precise modulating control for optimal system performance
• Spring return functionality ensures valve returns to default position upon power loss
• Bronze valve body suitable for both heating and cooling applications
• Low power consumption design for energy efficiency

This valve assembly is ideal for chilled water systems, hot water heating systems, fan coil units, and other commercial HVAC applications requiring reliable zone control and temperature regulation.