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- Used in flat roofs of any construction where a constant height of water is desired on the roof. It may also be used as an emergency overflow for conventional roofs, draining rain water when the depth of the water on the roof reaches the water dam height.
Overflow Drain, Water Dam, Series: 1080, 6 in Outlet, No-Hub Connection, Cast Iron Drain, 15-1/4 in Dia Dimensions
- RDP: roof deck plate
- Draining rain water when the depth of the water on the roof reaches the water dam height
- Flashing clamp and gravel stop with polyethylene dome and cast iron water dam
- 102.5 sq-in free area
- Duco cast iron body, flashing clamp and gravel stop with polyethylene dome, and cast iron water dam
- Note: stated flow rates for roof drains are based on particular test piping configurations and dimensions
- Installed roof drain flow rates cannot be stated unless the attached piping configuration is known and the effects of the drainage calculated
- 08(200) & 10(250) outlet sizes are regularly furnished with a 20(510) Dia flange see back sheet. for 16(405) Dia flange it must be specified as -16. Ex: 1010Y08-16
- Connection TypeNo-HubDrain MaterialCast IronDimensions15-1/4 in DiaManufacturerJay R. Smith Mfg. CoManufacturer #1080Y06 (-RDP)Outlet Size6 inSeries1080