Siemens Building Technology 331-4310 Actuator R-407A allowing the belt to run

allowing the belt to run cooler and maintain higher horsepower capacity than standard wrapped belts

delivery for sensitive gas-fired equipment

For commercial contractors and service fleets

Common Questions Is this a direct replacement for my existing blower motor

Siemens Building Technology 331-4310 Actuator R-407A allowing the belt to runThe Siemens 331 4310 is a heavy duty pneumatic damper actuator engineered for precise proportional control in commercial HVAC systems. This No. 4 actuator features a 3 7 psi spring range and a 2 3 8 inch stroke, making it a critical component for modulating dampers and air valves in both legacy and modern building automation systems. Designed with a rugged metal housing, it handles the mechanical demands of air handling units where consistent torque