Siemens Building Technology 332-3011 Actuator

The Siemens Building Technology 332-3011 Actuator is a heavy-duty, rolling diaphragm pneumatic damper actuator engineered for precise control of large dampers and centrifugal refrigeration inlet vanes. This No. 6 actuator is the industry-standard direct replacement for D-3244-3 models, featuring a rugged metal-fabricated body designed for high-demand HVACR environments. It operates on a nominal 8-13 psi spring range and includes an integral powers positioning relay to ensure accurate stem positioning regardless of load variations. For versatile installations, this kit is supplied with all necessary crankarm, clevis, and pivot hardware for extended shaft mounting. The ozone-resistant silicone rubber diaphragm is fully replaceable, facilitating long-term field maintenance in critical applications like fire and smoke damper control. Its 4-inch stroke provides the mechanical advantage required for multi-section dampers, making it a reliable choice for professional contractors managing large-scale mechanical systems.

• Direct Replacement: Seamlessly replaces legacy D-3244-3 and Powers Controls No. 6 units without additional drilling.
• High-Force Performance: Engineered with a large effective diaphragm area suitable for heavy-duty multi-section dampers.
• Complete Mounting Kit: Includes 332-3011 clevis, crankarm, and pivot post for universal extended shaft mounting.
• Precise Control: Integrated positioning relay provides high-resolution feedback for modulating HVAC applications.
• Industrial Durability: Features an ozone-resistant rolling diaphragm and all-metal construction for maximum lifespan.

Common Questions

Is the 332-3011 compatible with existing Johnson Controls setups?
Yes, this unit serves as a direct 332-3011 replacement for D-3244-3, fitting the same footprint for pneumatic damper actuator retrofits.

What is the effective stroke length for this actuator?
The No. 6 model provides a standard 4-inch (102 mm) stroke, providing ample travel for 90-degree damper rotation on large shafts.

Can the internal diaphragm be serviced?
The diaphragm is fully replaceable, allowing for easy field repairs without replacing the entire Siemens 332-3011 assembly.

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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.