Schneider Electric (Barber Colman) AV-352 Linkage

The Schneider Electric (Barber Colman) AV-352 Linkage is a heavy-duty gear train actuator valve linkage engineered for field-installing MP-9000 Series actuators onto large-bore VB-9xxx series globe valves. Designed for industrial and commercial hydronic control, this robust HVAC valve linkage kit is compatible with 2-1/2" to 6" flanged valve bodies, providing the mechanical interface necessary to translate actuator torque into precise stem travel. For technicians managing Schneider Electric valve replacement or retrofitting, the AV-352 is critical for achieving rated close-off pressure on 5" and 6" valves while significantly increasing close-off performance for 2-1/2" to 4" applications. The die-cast aluminum frame ensures long-term structural integrity in high-demand environments, facilitating accurate flow control for chilled water, hot water, and low-pressure steam systems. This linkage requires an actuator capable of a 180-degree stroke with a minimum torque rating of 220 lb-in to ensure reliable operation across the entire valve stroke.

Key Benefits

• Optimized Performance: Engineered to provide increased close-off pressure on 2-1/2" to 4" valves and meet rated specifications for 5" and 6" models.
• Broad Compatibility: Seamlessly integrates Schneider Electric gear train actuators with VB-9xxx series flanged valves.
• Durable Construction: Features a high-strength die-cast aluminum mounting bracket suitable for rigorous mechanical environments.
• Precise Positioning: Includes integrated valve position indication as standard for simplified field verification of valve state.
• Flexible Installation: Supports upright mounting configurations above the valve centerline, accommodating various mechanical room spatial constraints.

Common Questions

Which actuators are compatible with the AV-352 linkage?
This linkage is specifically designed for use with MP-9000 Series gear train actuators that provide a 180° stroke and at least 220 lb-in of torque.

Can I use this for both 2-way and 3-way valve bodies?
Yes, the AV-352 is compatible with both 2-way and 3-way VB-9xxx series flanged valves ranging from 2-1/2" to 6" in size.

Is this linkage suitable for steam applications?
Yes, it is rated for HVAC systems including hot water, chilled water, and steam, provided the actuator is mounted at a 45° angle from vertical for high-temperature steam lines.

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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.