Overview
The Belimo GRX24-MFT is a high-torque, non-fail-safe valve actuator designed for precise modulating control in demanding commercial and industrial HVAC applications. Powered by Belimo’s Multi-Function Technology (MFT) and operating on a 24V AC/DC supply, this actuator provides flexible, field-configurable control parameters for dependable performance in complex hydronic and air systems.
Features
- Multi-Function Technology (MFT) allows field-configurable control signals and positioning feedback
- Non-fail-safe (non-spring return) operation ensures smooth and energy-efficient valve regulation
- High torque output engineered to drive large-capacity control valves
- Broad supply voltage compatibility with standard 24 VAC/VDC building automation controllers
- Integrated manual override facilitates convenient setup, testing, and commissioning
Specifications
- Actuator Type: Non Fail-Safe (Non-Spring Return)
- Supply Voltage: AC/DC 24 V (50/60 Hz)
- Control Type: MFT / Programmable (2-10 VDC, 0-10 VDC, 4-20 mA)
- Power Consumption (Running): 8 W
- Power Consumption (Holding): 2.5 W
- Transformer Sizing: 11 VA
- Enclosure Rating: NEMA 2 / IP54
Applications
- Modulating flow control for commercial butterfly valves and ball valves
- Hydronic temperature regulation in air handling units (AHUs) and central plants
- Chilled water, hot water, and glycol loop control systems
- Seamless integration with central building automation and energy management systems


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