Nor East Controls 30067438-890 Diaphragm

For field technicians maintaining pneumatic systems, the Nor East Controls 30067438-890 Diaphragm is the direct OEM replacement engineered for D/A Actuator 05 configurations. This flexible membrane is the heart of your pneumatic actuation, responsible for converting modulated air pressure into precise mechanical motion to manage HVAC dampers and control valves. Built from high-fatigue resistant elastomers, this direct-acting diaphragm is designed to handle consistent cycling in commercial and industrial air handling units without stretching or losing its response profile.

Installers should verify that the actuator model 05 specifications match this part to ensure optimal pressure stability. This component is critical for maintaining the intended linear stroke of the pneumatic actuator, especially in systems where tight airflow regulation and terminal unit efficiency are prioritized. Replacing a worn diaphragm with this genuine Nor East Controls 30067438-890 part restores the system's sensitivity to pressure signals, preventing hysteresis and ensuring reliable fail-safe positioning.

• Specifically engineered for Nor East Controls 30067438-890 and D/A Actuator 05 compatibility.
• Provides superior pneumatic actuation performance via advanced elastic membrane technology.
• Reduces HVAC control valve maintenance intervals by resisting industrial fluid contaminants.
• Ensures accurate climate regulation and airflow control in high-demand AHU applications.
• Lightweight 0.36lb construction allows for rapid field installation and reduced downtime.

Is this diaphragm compatible with reverse-acting (R/A) actuators?
This specific part number is designed for direct-acting (D/A) Actuator 05 models. Always check your nameplate data before installation to ensure the action type matches your system requirements.

What are the signs that a diaphragm needs replacement in a pneumatic system?
If you notice the actuator is slow to respond to pressure changes, fails to reach full stroke, or shows audible air leaks near the actuator housing, the replacement diaphragm should be inspected for tears or hardening.

Does this part work with different pressure ranges?
While the diaphragm itself is versatile, the stroke and force of the actuator 05 are determined by the spring range and signal pressure (e.g., 3-15 psi). This part is designed to hold those pressures effectively across standard operating ranges.

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.