Siemens Building Technology 331-4310 Actuator R-407A self-operated unit engineered for precise

self-operated unit engineered for precise pressure control in residential and light commercial gas service

delivery for sensitive gas-fired equipment

While cleaning with an emery cloth can provide a temporary fix for carbon buildup

including i-see Sensor settings

Siemens Building Technology 331-4310 Actuator R-407A self-operated unit engineered for preciseThe 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