Johnson Controls D-3244-618 Boot Kit

The Johnson Controls D-3244-618 is a professional-grade Rubber Boot Kit engineered specifically for D-3244 and D-3246 pneumatic piston actuators. Designed to maintain the operational integrity of high-torque damper actuators, this kit provides a robust environmental shield for the actuator bearing shaft. It is essential for installations in "dirty" or mildly corrosive atmospheres where dust, moisture, and airborne particulates can lead to premature scoring or binding of the piston rod. By preventing the ingress of contaminants, this field-installed accessory ensures smooth pneumatic actuator travel and consistent torque output across the full modulation range.

The internal components of the D-3244-618 include a precision-molded rubber boot, a dedicated boot holder, and the necessary washers for a secure fit on the piston damper actuator housing. This kit is a critical preventative maintenance item for HVAC pneumatic controls located in mechanical rooms or industrial environments with fluctuating temperatures. Technicians should verify the distance between the connection head and the actuator face during installation to ensure proper pleat compression and expansion without mechanical interference. Utilizing this OEM Johnson Controls replacement part helps sustain factory performance specifications and minimizes friction-related actuator failure in demanding commercial HVACR applications.

Key Benefits:

• Compatible with Johnson Controls D-3244 and D-3246 Series pneumatic actuators.
• Protects critical bearing shafts from dust, grit, and mildly corrosive industrial environments.
• Maintains smooth piston rod movement for precise damper modulation and positioning.
• Includes a high-durability elastomeric boot and integrated boot holder for a secure, airtight seal.
• Reduces mechanical wear on internal gaskets and seals by filtering out abrasive particulates.

Common Questions:

Does this kit include the mounting hardware for the D-3246 series?
Yes, the kit includes the boot holder and necessary washers required to secure the rubber boot to the actuator face for both D-3244 and D-3246 models.

Can this boot be used in high-temperature steam applications?
While the rubber boot is designed for standard HVAC environments, it is rated for mildly corrosive atmospheres. For extreme temperature or chemical exposure, consult the technical data sheet for specific elastomer compatibility.

How does this affect the stroke length of the pneumatic piston?
When installed according to Johnson Controls specifications, the pleats are designed to compress and expand fully, allowing the piston actuator to maintain its full rated stroke without adding significant resistance.

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.