Description
Overview
The Schneider Electric (Barber Colman) AV-401 is a precision-engineered pneumatic actuator linkage kit designed to mechanically couple MK-46XX series pneumatic actuators to compatible VB-series control valves. This linkage kit provides a reliable, secure mounting interface that ensures accurate valve stroke transmission and long-term operational integrity in commercial and industrial HVAC systems.
Compatibility
- Mounts MK-46XX series pneumatic actuators
- Compatible with VB-9XXX series valves in 1/2″ through 1-1/4″ pipe sizes
- Compatible with VB-7XXX series valves in 1/2″ through 2″ pipe sizes
Key Features
- Engineered linkage hardware for secure actuator-to-valve mounting
- Ensures precise mechanical stroke transmission from actuator to valve stem
- Designed for use in pneumatic control systems typical of commercial HVAC and building automation applications
- Manufactured to Schneider Electric (Barber Colman) quality standards for reliable, long-service performance
- Simplifies field installation and actuator replacement on compatible valve assemblies
Applications
The AV-401 linkage kit is ideal for use in commercial building HVAC systems where pneumatic control of heating and cooling coil valves is required. It is commonly used in air handling units, fan coil units, and hydronic piping systems that rely on pneumatic actuators for precise flow modulation.
Why Choose Schneider Electric (Barber Colman)?
Schneider Electric, formerly known for its Barber Colman product line, is a globally recognized leader in building automation and HVAC controls. The AV-401 reflects the brand’s commitment to quality, compatibility, and ease of installation — making it a trusted choice for HVAC contractors and building automation professionals.







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