Johnson Controls D-3244-4 Damper Actuator

The Johnson Controls D-3244-4 Damper Actuator is a heavy-duty pneumatic piston actuator engineered for high-torque applications in commercial HVAC systems. This swivel-mounted pneumatic actuator utilizes a robust 23.4 sq. in. diaphragm to provide proportional control for medium to large-sized dampers and fan vanes. With a standard 8-13 psi spring range and a generous 4-inch stroke, the D-3244-4 delivers consistent positioning accuracy under varying load conditions. The die-cast aluminum body ensures structural integrity in demanding environments, while the included swivel bracket, clevis, and crankarm simplify field installation. Designed for low-maintenance operation, it features a maximum air consumption of just 2 SCIM and is compatible with control pressures up to 25 psi. This proportional damper control unit is an essential component for contractors managing building automation systems requiring reliable mechanical stroke and high force output.

• Rugged Durability: Die-cast aluminum housing protects internal components in industrial mechanical rooms.
• Precise Modulation: The 8-13 psi spring range allows for fine-tuned air flow control and valve positioning.
• Complete Mounting Kit: Ships with swivel bracket, clevis, and crankarm for versatile installation configurations.
• High Torque Output: Large 23.4 sq. in. diaphragm provides the high thrust necessary for heavy damper linkages.
• Efficient Performance: Minimal 2 SCIM air consumption reduces the load on the facility’s pneumatic supply system.

What is the maximum control pressure for the D-3244-4?
This actuator is rated for a maximum control air pressure of 25 psi, though its standard operating spring range is 8 to 13 psi.

Does this unit come with required mounting hardware?
Yes, the unit includes a swivel mount bracket, clevis, and crankarm, making it ready for immediate integration with existing damper linkages.

Can the diaphragm be serviced on this model?
The Johnson Controls D-3244-4 is designed for longevity, and while the die-cast body is permanent, standard pneumatic maintenance kits are available for the internal diaphragm and seals.

This item is not eligible for free shipping.

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.