EATONAerospace Group TF100-86F May 2013 3 Curve 1 61654BD (BE or BU), 20-mesh screen and 61525 coupler, fueling direction Curve 2 61654BJ, 20-mesh screen and 61525, defueling direction Curve 3 61654BJ, 20-mesh screen and 61525, fueling direction Curve 4 61654AD (AE or AU), 10-mesh screen and 61525, fueling direction The chart, right, depicts typical pressure drop versus flow characteristics of Model 61654 hydrant pit valves. (Option X does not alter the pressure drop characteristics of the 61654 valve). Flow Characteristics Model 60554ST1 Hydrant Outlet Wear Gauge This gauge is now available to check for wear on the interface of Eaton’s hydrant pit valves made in accordance with API Bulletin 1584, 3 rd Edition. Refer to the appropriate maintenance manual (SM60554 or SM61654) for instructions. CURVE 2
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