Overview
The Belimo SY3-24MFT is a high-torque, non-spring return rotary valve actuator engineered for robust control of large hydronic butterfly valves in HVAC applications.
Features
- Multi-Function Technology (MFT) supports customizable control input and position feedback options
- High-torque motor designed to drive large butterfly valves reliably
- Manual override capability for setup and emergency operation
- Industrial-grade construction for long service life
Specifications
- Torque: 1335 in-lb [150 Nm]
- Nominal Voltage: AC/DC 24 V
- Control Type: MFT / Programmable
- Actuator Type: Non-Spring Return Rotary
- Running Time: 22 seconds
Applications
- Control of large butterfly valves in commercial and industrial HVAC plants
- High-capacity chilled and hot water system flow regulation





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