Siemens Building Technology 333-572 Diaphragm

Maintain peak performance in high-ambient environments with the Siemens Building Technology 333-572 Diaphragm, a critical service part for pneumatic damper actuators. This 5-pack of heavy-duty replacement diaphragms is specifically engineered for Siemens #6 actuators and select #4 actuator models. Built from silicone-based, high-temperature resistant elastomers, these rolling diaphragms are designed to withstand the thermal stresses of steam coils and industrial air handling units where standard EPDM components might fail. Replacing a ruptured or aged pneumatic actuator diaphragm is essential for restoring the full stroke and torque required to modulate heavy dampers accurately. As a veteran-grade HVAC repair kit, the 333-572 ensuring airtight integrity across the 3-13 psi or 8-13 psi spring ranges. By performing proactive pneumatic control maintenance with these OEM-spec components, technicians can prevent hunting, air loss, and inadequate heat transfer in critical building automation systems.

• High-Temperature Durability: Specifically formulated for elevated temperature applications, preventing premature hardening and cracking in hot deck sections.
• Precise Modulation: Restores factory-spec sensitivity to the Siemens No. 6 pneumatic actuator, ensuring smooth damper travel.
• Bulk Value Pack: This 5-pack ensures immediate availability for large-scale facility retrofits or emergency service calls.
• OEM Compatibility: Exact replacement for Powers and Siemens 333-series pneumatic components, maintaining system UL listings.

How do I know if my #6 actuator diaphragm needs replacement?
If you hear a persistent hissing sound during the control cycle or notice the actuator failing to reach full stroke at 15-20 psi, the diaphragm most likely has a hairline tear or pinhole leak.

Are these diaphragms compatible with older Powers Controls actuators?
Yes, the 333-572 is the direct replacement for the legacy 333-206 diaphragms commonly found in older Powers Building Technology damper drives.

Can these be used in standard temperature applications?
While designed for high-heat environments, these "Hi-Temp" diaphragms provide superior longevity in standard applications and are a recommended upgrade for any Siemens 331 series #6 actuator.

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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.