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it utilizes NBR seals to maintain a bubble-tight shut-off across a pressure range of 0-125 PSI
and UDAS75 model series unit heaters
Featuring a 24-inch diameter and a specific 27-degree pitch
Drop-In Compatibility: Standard 3/8" suction and 1/4" discharge stub connections facilitate rapid field replacement for existing RST64C1E models
ensuring the system operates within safe parameters
Siemens Building Technology GRD221.1U Actuator 322838-753 it utilizes NBR seals toThe Siemens Building Technology GRD221. 1U Actuator is a specialized 120V fire and smoke damper actuator designed for critical life safety HVACR applications. As a veteran grade two position spring return actuator, it delivers 30 lb in of torque, ensuring reliable open close operation for smoke control and combination fire smoke dampers. Built to exceed the rigors of UL555 and UL555S standards, this unit provides a nominal 30 second drive time and a
US$ 175.00
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