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Series GRFS Differential Pressure Gas Flow Sensing Switches

Series GRFS switches are for use with natural, manufactured, or LP gas as the measured media in applications such as furnaces, package burners, and other fuel-burning equipment. They have field-adjustable or factory calibrated set points between 0.18″ wc and 5″ wc. Numerous standard configurations are available, including mounting choices, sample line connector styles , terminal styles , and open or enclosed terminals. Many options are available also, including manual reset, set point indication, alarm pilot light, time delayed actuation, electronic dual set points, and NEMA-rated enclosures.