Siemens Building Technology 331-4314 Actuator

The Siemens 331-4314 is a pneumatic damper actuator engineered for precise proportional control in commercial HVAC systems. This HVAC damper actuator features a 3-7 psi nominal spring range, making it a critical component for maintaining accurate modulation within air handlers and multi-zone ventilation setups. Utilizing a rugged fixed mounting configuration, this No. 3 series actuator ensures proper mechanical alignment, which significantly reduces linkage wear and maintains a 2-3/8 inch stroke for consistent performance. Designed for integration into legacy pneumatic control systems, the 331-4314 provides a high-torque response to pressure fluctuations, ensuring airflow balance across the ductwork. Whether you are performing a retrofit or a direct replacement in field-proven Siemens automation environments, this air control actuator delivers the mechanical reliability required for high-cycle applications without the complexity of electronic components.

Key Benefits:

• 3-7 psi control signal range allows for accurate proportional modulation in standard pneumatic loops.
• Rolling diaphragm design provides a constant effective area throughout the stroke for linear force output.
• Fixed mounting ensures stable installation and eliminates alignment shift during high-load damper operation.
• All-metal housing construction provides durability in mechanical room environments.
• Optimized for HVAC retrofit projects involving Siemens Building Technologies or Powers controls.

Common Questions:

What is the maximum air pressure for the Siemens 331-4314?
This actuator typically handles a maximum supply pressure of 30 psi, though it operates within a 3-7 psi range for standard modulation.

Can this actuator be used for multi-section damper banks?
Yes, the Siemens 331-4314 is frequently utilized in tandem or master-slave configurations for larger damper assemblies requiring uniform airflow control.

Does this model include a positioning relay?
The No. 3 actuator is often used with a 331-147 or similar positioner if high-friction loads or long pneumatic runs require increased precision, but it functions effectively as a standalone unit in most balanced systems.

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.