Schneider Electric (Barber Colman) AV-601 Linkage Extension Kit

Description

The Schneider Electric (Barber Colman) AV-601 Linkage Extension Kit is a precision-engineered accessory designed to provide reliable thermal insulation between a valve body and its actuator. By creating a thermal break at the connection point, the AV-601 helps protect the actuator from excessive heat conducted through the valve — extending actuator service life and maintaining consistent control performance in demanding HVAC and building automation applications.

Key Features

• Provides thermal insulation between the valve body and actuator to prevent heat transfer
• Helps protect actuator electronics and components from valve-conducted heat
• Extends actuator service life in high-temperature valve applications
• Designed for use with compatible Schneider Electric (Barber Colman) valve and actuator assemblies
• Simplifies field installation with a purpose-built linkage design
• Supports reliable, long-term building automation and HVAC control system performance

Applications

• Commercial HVAC hydronic valve and actuator assemblies
• Building automation systems requiring thermal protection at valve-actuator interfaces
• Hot water and steam valve applications where actuator heat exposure is a concern
• Retrofit and replacement installations on compatible Schneider Electric / Barber Colman valve assemblies

Why Use a Linkage Extension Kit?

In hydronic and steam HVAC systems, valve bodies can reach elevated temperatures that, over time, degrade actuator performance or cause premature failure. The AV-601 Linkage Extension Kit addresses this challenge by physically separating and thermally isolating the actuator from the valve body. This simple but effective solution reduces maintenance costs, minimizes unplanned downtime, and ensures your control valves continue to operate accurately throughout their service life.