Siemens Building Technology 331-2988 Actuator 322838-754 depending on your torque and

depending on your torque and fail-safe requirements

Ensure proper flow direction as indicated on the valve body during installation to maintain diaphragm integrity and prevent premature wear

Its robust construction resists thermal overload

Field Interchangeability: The interchangeable orifice assembly allows for easy capacity adjustments without removing the valve body from the line

this unit stands up to demanding mechanical room environments and can be mounted horizontally without requiring precise leveling

Siemens Building Technology 331-2988 Actuator 322838-754 depending on your torque andThe Siemens 331 2988 No. 6 Pneumatic Damper Actuator is a heavy duty, rolling diaphragm drive engineered for gradual or positive control of large dampers, centrifugal refrigeration inlet vanes, and multi section air handling units. This high temperature pneumatic actuator features an 8 to 13 psi nominal spring range and a 4 inch stroke, providing the mechanical force necessary for large scale HVAC automation. Utilizing an ozone resistant silicone