Description
Belimo AV8-25 Shaft Extension Overview
The Belimo AV8-25 is a precision-engineered shaft extension designed to connect Belimo actuators to valve or damper shafts ranging from 5/16″ to 1″ in diameter. This accessory simplifies installation and ensures a secure, vibration-resistant coupling between the actuator and the shaft, maintaining accurate and repeatable control in commercial and industrial HVAC applications.
Key Features
- Compatible shaft diameter range: 5/16″ to 1″
- Designed for use with Belimo actuators requiring shaft extension or adaptation
- Provides a secure mechanical connection to reduce slippage and backlash
- Durable construction suited for long-term HVAC service environments
- Simplifies actuator mounting on non-standard or extended shaft configurations
- Genuine Belimo OEM accessory for assured compatibility and performance
Applications
- Damper actuator installations requiring shaft length extension
- Valve actuator setups with varying shaft diameters
- Commercial HVAC, building automation, and air handling unit (AHU) applications
- Retrofit and replacement projects where shaft geometry requires adaptation
Why Choose Belimo?
Belimo is a globally recognized leader in actuator, valve, and sensor solutions for HVAC systems. The AV8-25 shaft extension reflects Belimo’s commitment to precision engineering and ease of installation, helping HVAC professionals complete jobs efficiently and with confidence in long-term performance.







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