Schneider Electric (Barber Colman) AV-394 Linkage

The Schneider Electric AV-394 Linkage Kit is a high-performance field-assembly solution specifically engineered for Barber Colman gear train actuators. This complete linkage kit is used to interface TAC gear train actuators with VB-9xxx series valve bodies, particularly sizing between 1-1/2" and 2". Built for heavy-duty commercial HVAC applications, the unit provides a robust 300 lb stem force, ensuring positive close-off and precise modulation in demanding steam or hydronic systems. The die-cast aluminum mounting bracket provides rigid support, while the integrated valve position indication allows for immediate visual verification of seat position during operation.

For technicians working with obsolete VB-9xxx series components, the AV-394 is the critical mechanical bridge required to maintain system uptime without replacing entire valve assemblies. It features a 100 in-lb minimum required torque for the actuator and utilizes a spring-return mechanism to provide reliable fail-safe positioning. This Schneider Electric valve linkage simplifies field installation through a standardized cam and plunger design, ensuring the actuator connectivity meets original equipment specifications for stroke and compression.

Key Benefits

• 300 Lb Stem Force: High force output ensures reliable valve seating and high close-off pressure ratings.
• Rugged Die-Cast Construction: The aluminum bracket is designed to withstand vibration and professional-grade industrial environments.
• VB-9XXX Series Compatibility: Specifically tailored for 1-1/2" to 2" valve bodies, making it a staple for retrofitting and repairs.
• Position Verification: Includes standard marking for valve position indication to assist in troubleshooting and monitoring.
• Integrated Kit: Comes as a complete linkage kit including the cam, plunger, and stem extension components.

Common Questions

Which actuators are compatible with the AV-394?
This linkage is designed for use with TAC and Barber Colman gear train actuators requiring at least 100 in-lb of torque to operate valves in the VB-9xxx series.

Can I use this for smaller VB-7000 series valves?
No, the AV-394 is specifically dimensioned for the 1-1/2" to 2" VB-9xxx series. Smaller 1/2" to 1-1/4" valves or the VB-7xxx series typically require the AV-391 or AV-393 linkages.

Is the position indicator cover metal or plastic?
The position indicator cover and the main mounting bracket are made of die-cast aluminum for maximum durability.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.