Description
Siemens Building Technology 333-072 Replacement Diaphragm
The Siemens Building Technology 333-072 is a factory-specified replacement diaphragm designed for use with Siemens #4 pneumatic actuators. Sold in a convenient 5-pack, this part is an essential service component for maintaining the performance and reliability of pneumatic control systems in commercial building automation applications.
Product Overview
Pneumatic actuator diaphragms are critical wear components that create the pressure differential needed to drive valve and damper actuator stems. Over time, diaphragms can fatigue, crack, or lose flexibility — leading to actuator drift, loss of control authority, or complete failure. Replacing diaphragms with genuine Siemens OEM parts ensures proper fit, correct pressure response, and long service life.
Key Features
- OEM replacement diaphragm for Siemens #4 pneumatic actuators
- Packaged in a 5-piece set for efficient service and stock replenishment
- Designed to restore full actuator stroke and pressure response
- Manufactured to Siemens Building Technology quality standards
- Ideal for preventive maintenance programs in commercial HVAC and BAS applications
Applications
- Siemens #4 series pneumatic actuators
- Commercial building automation systems (BAS)
- Pneumatic valve and damper control applications
- Scheduled preventive maintenance and emergency service repairs
Ordering Information
- SKU: 333-072
- Brand: Siemens Building Technology
- Package Quantity: 5 diaphragms per package
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