Overview
The Belimo B239+AFRX24-MFT is a 1-1/2-inch 2-way characterized control ball valve assembly with a spring return MFT actuator, designed for precise, fail-safe water flow regulation in commercial HVAC systems.
Features
- Multi-Function Technology allows custom field programming of control signals
- Spring return mechanism automatically drives valve to safe position on power loss
- Stainless steel ball and stem provide excellent wear and corrosion resistance
- Equal percentage flow characteristic for stable heat exchanger control
- Low operating torque for energy-efficient actuator performance
Specifications
- Valve Size: 1-1/2 inch NPT
- Valve Type: 2-Way Characterized Control Ball Valve
- Flow Coefficient: Cv 29
- Control Signal: Multi-Function Technology (2-10 V, 4-20 mA, On/Off, Floating)
- Supply Voltage: AC/DC 24 V
- Fail-Safe Mode: Spring Return
Applications
- Modulating chilled and hot water coil control in air handlers
- Hydronic system isolation and flow regulation in commercial buildings
- Building management loops requiring reconfigurable control profiles





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