Johnson Controls D-3246-1 Damper Actuator

The Johnson Controls D-3246-1 Damper Actuator is a high-performance pneumatic piston actuator designed for the precise positioning of large dampers and VF series butterfly valves in commercial HVACR systems. Built for durability, this unit features a die cast aluminum body and a 23.4 sq. in. synthetic elastomer diaphragm, providing the high force output required for demanding air handling applications. The D-3246-1 is swivel-mounted and includes a factory-supplied bracket, clevis, and crankarm, simplifying field installation and ensuring a secure mechanical linkage to your control surfaces.

Operating with a nominal spring range of 8-13 psi, this 6-inch stroke actuator delivers gradual or positive actuation in response to pneumatic signals. It supports a maximum control air pressure of 25 psi and includes a 1/8" NPT barbed fitting compatible with 1/4" O.D. polytubing. With a maximum air consumption of only 2 SCIM, the Johnson Controls D-3246-1 is an efficient choice for contractors seeking reliable damper control hardware that maintains system integrity under varying load conditions. Its robust construction and versatile mounting options make it a standard for complex building automation and industrial ventilation projects.

• High Torque Output: Uses a 23.4 sq. in. diaphragm to provide significant positioning power for large-scale dampers.
• Resilient Construction: The die cast aluminum body ensures long-term performance in temperature ranges from -20° to 150°F.
• Complete Linkage Kit: Includes the essential clevis and crankarm for immediate HVAC damper actuator connection.
• Air Efficiency: Low 2 SCIM air consumption minimizes the load on the pneumatic supply system.
• Versatile Application: Ideal for Johnson Controls VF series butterfly valves and heavy-duty air dampers.

What is the maximum pressure for the D-3246-1?
The maximum control air pressure is 25 psi (172 kPa). Exceeding this limit may damage the internal diaphragm.

Can I add a positioner to this model later?
Yes, while this specific model does not include one, the D-9502 pneumatic positioner can be field-mounted if your application requires increased positioning accuracy.

What size tubing is required for the air connection?
The unit features a 1/8" NPT barbed fitting designed for use with standard 5/32" or 1/4" O.D. plastic tubing.

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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.