Belimo B309+LRB24-MFT 3-Way Characterized Control Valve 1/2" 0.8 Cv 24V MFT Actuator

The Belimo B309+LRB24-MFT is a complete characterized control valve assembly designed for precise modulating control of hot or chilled water in HVAC applications. This assembly combines the B309 3-way ball valve body with the LRB24-MFT non-spring return programmable actuator for superior control performance.

Valve Specifications:

• 3-way configuration for mixing or diverting applications
• 1/2 inch female NPT connections
• Cv rating of 0.8 (1.6 GPM at 4 psi differential)
• Forged brass body with nickel plating
• Stainless steel ball and stem for corrosion resistance
• PTFE Teflon seals and Tefzel characterizing disc
• Linear flow characteristic for 3-way operation
• Maximum closeoff pressure: 200 psi

Actuator Features:

• Non-spring return (non fail-safe) operation
• 24 VAC/DC power supply, 50/60 Hz
• 2-10 VDC modulating control signal (also accepts 4-20 mA)
• MFT (Multi-Function Technology) programmable functionality
• 45 in-lb torque output
• 90 second nominal run time
• 2-10 VDC position feedback signal
• External push button manual override
• Mechanically pluggable position indication
• 2.5 watt power consumption, 1.2 watt at rest
• IP54/NEMA 2 environmental rating

Applications:

• Air handling units and fan coil units
• Unit ventilators and VAV box reheat coils
• Heating and cooling coil control
• Bypass loops in hydronic systems
• Building automation systems requiring programmable control

The characterizing disc provides equal percentage flow characteristics that prevent control loop hunting, enhance stability, and optimize energy consumption. The MFT programmable technology allows configuration for specific application requirements. Backed by Belimo's 5-year warranty, this assembly delivers reliable, long-term performance in commercial HVAC systems.