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This ASCO 2-way gas valve is UL listed and FM approved
for proper operation and to ensure water does not collect in the seat area
it draws operational energy directly from the monitored line
standardized connection to the wiring system
Siemens Building Technology 331-2929 Actuator 322057-301 This ASCO 2-way gas valveThe 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
