Siemens Building Technology 331-4811 Actuator 322838-752 Engineered with a 1/4" barb

Engineered with a 1/4" barb connection

Direct Fitment: Standard mounting footprint allows for rapid swap-outs in tight furnace vestibules

the unit supports standard duplex wall box mounting

reducing operational costs and electrical stress

Siemens Building Technology 331-4811 Actuator 322838-752 Engineered with a 1/4" barbFor veteran technicians managing air handler units and mixing boxes, the Siemens 331 4811 represents the industry standard for pneumatic reliability. This No. 3 Pneumatic Damper Actuator is engineered with a rugged, all metal body designed to withstand the harsh environments of mechanical rooms. Operating on a nominal 8 to 13 psi spring range, this unit provides precise, gradual, or positive actuation of HVAC dampers and air valves. The 331 4811