Siemens 331-4810 Pneumatic Damper Actuator 2-3/8" Stroke 8-13 PSI

The Siemens 331-4810 is a pneumatic damper actuator designed for HVAC air control applications in commercial building automation systems. This front-mounting actuator provides reliable modulating control of dampers in heating, ventilation, and air conditioning systems.

Key Specifications:

• Stroke length: 2-3/8 inches for precise damper positioning
• Operating pressure range: 8 to 13 PSI pneumatic signal
• Front mounting configuration for easy installation and maintenance
• Size #3 actuator for medium-duty damper applications
• Spring return design for fail-safe operation

This actuator is compatible with standard pneumatic control systems and provides proportional control based on air pressure input from thermostats or building automation controllers. The compact design allows for installation in tight spaces while maintaining full stroke capability for effective damper control.