Josam 28600 Flo-set 15" Dome Large Sump

Specification
28600 Series coated cast iron FLO-SET Roof Drain with large secured dome, adjusted calibrated Vandal-Proof vane collar, WEJLOC non-puncturing clamp ring with stationary vanes and integral gravel stop, large sump with wide roof flange and bottom outlet.

Application
Used on roofs of any size, for any type of construction where a predetermined rate of flow has been specified to limit pipe sizing or flooding of undersized pre-existing storm drainage systems. Adjustable calibrated vanes can be factory set to prescribed G.P.M. flow rates as required. Large slotted dome provides maximum free area for quick drainage of rainwater and protects the drain sump and connected piping from debris. WEJLOC@ compression flashing clamp holds the membrane or flashing securely to the drain body. -AE LEVELEZE adjustable extension accommodates insulation of variable thickness.