4 EATONAerospace Group TF100-84D May 2013 Flow Characteristics The chart (right) depicts typical pressure drop versus flow characteristics of Eaton’s Carter Model 61524 Hydrant Pit Valves with a mating Model 60445 or 61445 Coupler. Technical Data Dimensions shown in inches (millimeters). Installation Data It is critical that the mating coupler be connected correctly and the pit lid be able to close completely. The hydrant valve’s installation depth depends upon the brand of pit used. The thickness of the pit lid should be checked to be sure that it will clear the hydrant valve before setting the pit. The dimensions noted herein were correct for pits made in the United States at the time of printing. Eaton cannot be responsible for changes in the pits. The dimensions shown are for reference only.
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