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Page 3 of 8 DUAL SUCTION OUTLET SET ISDUALSWG REV D <br /> <br />xRECOMMENDED SYSTEM SPECIFICATIONS: <br />WGX1048E Suction Outlet Covers are rated for Floor Only at 125 GPM <br />WG1048EW Suction Outlet Covers are rated for Wall or Floor at 72 GPM <br />In the event of one suction outlet being blocked, the remaining suction outlets serving that system shall have a <br />flow rating capable of the full flow of the pump(s) for the specific suction system. <br />Example: In the System shown in Diagram 1, two (2) “Floor Only” suction outlet covers are selected and mounted. <br />These covers are individually rated for 125 GPM. For a desired flow rate through the pump of 100 GPM, a minimum <br />pipe size from the Chart 1 is selected at 3”. At the desired flow of 100 GPM one cover could be partially blocked <br />and the other suction outlet flow would be below the rated 125 GPM of the “Floor” mounted suction outlet cover. <br />Since there are two outlets flowing in normal operation, and the allowable velocity in the interconnecting piping is <br />only 3ft/sec, the same pipe size is required in the interconnecting piping. <br />Example: In the System shown in Diagram 2, one (1) “Floor Only” suction outlet cover, rated at 125 GPM, and one (1) <br />“Wall or Floor” suction outlet cover, rated at 72 GPM are selected and mounted. For a desired flow rate through the <br />pump of 50 GPM, a minimum pipe size from the Chart 1 is selected at 2”. At the desired flow of 50 GPM either <br />cover could be totally blocked and the other suction outlet flow would be below the rated 72 GPM of the wall <br />mounted suction outlet cover. Note: Flow may be limited by entrapping force in dual suction systems. <br />Diagram 1 <br />ACCEPTABLE PIPE SIZE FOR MAXIMUM <br />RECOMMENDED <br /> SYSTEM FLOW RATE PER APSP-7 <br /> (6 FT/SEC IN THE BRANCH LINE) <br />Pipe Size <br />[mm] <br />Flow rate <br />GPM <br />[Liter/Min] <br />Pipe Size <br />[mm] <br />Flow rate <br />GPM [Liter/Min] <br />1 ½” <br />[50] <br />40 <br />[150] <br />2 ½” <br />[75] <br />90 <br />[340] <br />2” <br />[63] <br />63 <br />[240] <br />3” <br />[90] <br />138 <br />[522] <br />Diagram 2 <br />Floor Outlets, <br />Total system rated <br />flow 125 GPM Wall <br />Floor <br />72 GPM rated <br />125 GPM Rated <br />Total System rated <br />flow 72 GPM <br />Chart 1 <br />System <br />Branch piping <br />FIG 1 <br />Interconnecting <br />piping <br />Interconnecting <br />piping <br />System branch piping <br />Note: 1” Hg = 1.13 Ft of Head