Johnson Controls D-4073-3 Damper Actuator

The Johnson Controls D-4073-3 is a robust pneumatic piston damper actuator designed for the precise positioning of dampers in VAV boxes, terminal units, and unit ventilators. Built with a 5-10 PSI spring range and a full 3-inch stroke, this multipurpose device provides reliable proportional or two-position control. It features a glass-reinforced polymer housing and a 2-way swivel connection to ensure non-binding movement during operation. The D-4073-3 is a direct replacement for D-3073 series actuators and a functional upgrade for legacy D-251 models. With a universal mounting bracket included, it facilitates flexible installation both inside and outside of ductwork. The unit is equipped with a 1/8 inch NPT straight barbed fitting, making it compatible with 5/32 or 1/4 inch OD polytubing. For high-torque demands or sequential operation, it can be integrated with a D-9502 pilot positioner to manage up to four subordinate actuators effectively.

• Universal Compatibility: Includes a versatile mounting bracket and telescoping piston rod for easy linkage to various damper attachment points.
• High Performance: Optimized for dampers up to 6.75 sq. ft. for proportional control and 11.7 sq. ft. for two-position applications.
• Precision Connection: Features a swivel ball joint and slotted crankarm connector for non-binding, smooth mechanical operation.
• Rugged Design: The glass-reinforced polymer housing is rated for ambient temperatures ranging from -20 to 150?F.

Common Questions

What is the maximum air pressure for this actuator?
The D-4073-3 is designed for standard HVAC control air pressure of 0-20 psig, with a maximum pressure rating of 25 psig.

Can this replace a D-3073 or D-251 actuator?
Yes, this model serves as a direct replacement for the D-3073 series and a functional replacement for the older D-251 pneumatic actuators.

Is this suitable for outdoor installation?
The D-4073-3 is recommended primarily for interior locations. For harsh environments, ensure the specific application matches the housing's temperature and material ratings.

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.