Siemens Building Technology 331-2929 Actuator 322057-301 Smith BTR unit

Smith BTR unit

This ASCO 2-way gas valve is UL listed and FM approved

Rated for an impressive 2

providing the electrical boost necessary to overcome load inertia during the initial startup phase

Siemens Building Technology 331-2929 Actuator 322057-301 Smith BTR unitThe Siemens 331 2929 Actuator is a heavy duty No. 4 pneumatic damper actuator designed for professional HVACR installations requiring high torque performance. Featuring a 3 7 psi spring range and a standard 4 inch stroke, this unit is engineered for the gradual or positive actuation of large dampers, mixing boxes, and terminal unit air valves. Built with a rugged, all metal body and a replaceable EPDM rolling diaphragm, this pneumatic damper actuator