Honeywell 14004238-001 Duct Head

The Honeywell 14004238-001 Duct Head (also identified as 14004238-001/U) is a critical component for technicians managing pneumatic airflow control systems. Specifically engineered for integration with the Honeywell PP904 series differential pressure regulators, this static pressure duct head provides the precise sensing required to maintain system stability. It features a universal design compatible with standard 1/4 inch (6 mm) diameter plastic tubing, ensuring a secure, leak-free connection in high-demand commercial environments. By delivering accurate duct static pressure readings to the controller, this probe allows for effective modulation of dampers and fans, which is essential for optimizing HVAC energy efficiency and preventing equipment strain.

Constructed for durability and consistent performance, the 14004238-001 is a direct OEM replacement part that eliminates compatibility guesswork during field service. The sensing head is designed to be mounted within the airstream to capture external static pressure (ESP) without interference from velocity pressure, providing the clean signal necessary for VAV system calibration. Whether you are troubleshooting air side restrictions or performing a new installation, this sensing head ensures your pneumatic controls receive the reliable data needed to manage HVAC system health.

• Universal Compatibility: Optimized for use with Honeywell PP904 series regulators and standard 1/4" pneumatic tubing.
• Precision Sensing: Designed specifically to isolate static pressure, reducing signal noise for more accurate HVAC airflow measurement.
• OEM Reliability: Direct replacement for 14004238-001/U, ensuring exact fit and function in existing pneumatic loops.
• Enhanced System Life: Facilitates proper fan speed modulation, reducing wear on blower motors and improving total system performance.

• Is the 14004238-001 different from the 14004238-001/U? No, these part numbers refer to the same technical component; the "/U" suffix typically denotes Honeywell's universal packaging for individual resale.
• What tubing size works best with this duct head? This unit is built for 1/4 inch (6 mm) O.D. plastic tubing, which is the industry standard for most pneumatic control applications.
• Where should I mount this probe for the best accuracy? For the most reliable static pressure sensor readings, install the duct head in a straight run of ductwork, ideally ten duct diameters downstream and several diameters upstream from any elbows or transitions.

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.