Overview
The Belimo B277+AFRX24-MFT is a 3-inch 2-way Characterized Control Valve (CCV) combined with an MFT spring return actuator engineered for fail-safe water flow modulation.
Features
- 2-way CCV with corrosion-resistant stainless steel ball and stem
- Multi-Function Technology (MFT) for customizable control parameters
- Spring return fail-safe operation provides immediate safety close-off upon power failure
- High flow capacity engineered for demanding commercial installations
Specifications
- Valve Size: 3 inches
- Flow Coefficient: Cv 70
- Valve Type: 2-way Characterized Control Valve (CCV)
- Trim Material: Stainless Steel
- Control Type: MFT / Programmable
- Actuator Type: Spring Return
Applications
- Water flow modulation in commercial hydronic heating and cooling circuits
- Temperature control for air handlers, chillers, and heating coils




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