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the unit will remain in its last position upon loss of control signal
this two-groove pulley is designed for high-torque applications requiring exact RPM tuning
How do I identify the correct primary tap for a 480V system
For outdoor air or duct-mounted applications
Siemens Building Technology 331-3013 Actuator 320734-701 the unit will remain inThe Siemens Building Technology 331 3013 Actuator is a heavy duty #6 pneumatic damper actuator designed for contractors requiring high torque performance in demanding HVACR environments. This rugged metal fabricated power unit features a 3 13 psi nominal spring range and a 4 inch stroke, making it ideal for the gradual or positive actuation of large dampers, fire and smoke dampers, and centrifugal refrigeration inlet vanes. Built with a replaceable
