Overview
The Belimo B223+LF24-MFT-S US pairs a 1-inch 2-way characterized control ball valve with a flexible Multi-Function Technology (MFT) spring return actuator with an auxiliary switch. It provides customized fail-safe control for commercial HVAC hydronic applications.
Features
- Multi-Function Technology (MFT) enables field-reconfigurable control parameters
- Integrated auxiliary switch (-S) for end-stop signaling or equipment interlocking
- Mechanical spring return ensures reliable fail-safe operation during power loss
- Equal percentage flow profile prevents thermal control instability
- Maintenance-free construction with durable forged brass valve body
Specifications
- Valve Size: 1 inch NPT
- Valve Type: 2-Way Characterized Control Ball Valve
- Control Signal: Multi-Function Technology (2-10 V, 4-20 mA, On/Off, Floating)
- Auxiliary Switch: 1x SPDT
- Supply Voltage: AC/DC 24 V
Applications
- Hydronic heating and cooling coil modulation in commercial facilities
- Air handling units and central plant hydronic systems
- Advanced building management systems requiring auxiliary switch status feedback





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