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Figure Number: 1830
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1830Roof and Overflow Drain with Deck-Top Mounting Plate

Figure 1830 Series is engineered to save installation costs, the roof and overflow drains of this unit are attached to a single deck plate. This permits both 8-1/2” drains to be secured to the roof deck from above the roof, eliminates the need for an underdeck clamp, and requires only one roof penetration. The roof drain has a combined flashing clamp and gravel stop. The overflow drain is fitted with a combined flashing clamp and 2” water dam. Both are constructed of Duco coated cast iron and are protected by polyethylene dome strainers.

Figure 1831 offers high profile cast iron domes the assembly is mounted on compact 19" x 10-1/2" mounting plate.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov - Learn More about this warning
Shows specifications for standard configuration. Configuration options may change specifications.
  • Optional Materials
    Aluminum Dome -AD, Cast Iron Dome -CID, Galvanized Cast Iron Dome -CIDG, Rough Bronze Dome -RBD, Galvanized Cast Iron -G - Body & Collar, Stainless Steel Mesh Over Dome -SSM
  • Product Type
    Roof Drain
  • Variations
    4" (102) Tall S.S. Perforated Gravel Guard -GG04, Vandal Proof - Dome - U, Extension -E - (Specify Height), Secondary Flashing Clamp -C2, LXH Speedi-Set® Extra Heavy, L Speedi-Set® Service Weight, Expansion Joint (Specify Fig. 1710), (2) 3/8” (10) Tappings -TAP
SubmittalSubmittal 1830 Roof Drain (pdf)
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Technical Drawings
1830 Roof Drain (dwg)Roof and Overflow Drain with a 32" x 16" Deck-Top Mounting Plate 4-1/2" Polyethylene Domes [1830C | Caulk Outlet, 1830Y | No-Hub Outlet]DWG176 KB
1830 Roof Drain (rfa)Roof and Overflow Drain with a 32" x 16" Deck-Top Mounting Plate 4-1/2" Polyethylene Domes [1830C | Caulk Outlet, 1830Y | No-Hub Outlet]RFA920 KB
Literature / Videos
Submittal 1831 Roof Drain (pdf)Roof and Overflow Drain with 19" x 10-1/2" Deck-Top Mounting Plate - High Profile Cast Iron Domes [1831Y | No-Hub Outlet]PDF489 KB
MGI Corporate Brochure (pdf)Who we are, Our History, Morris Group International TodayPDF8 MB
MGI Brands Flyer (pdf)MGI Brands Flyer (pdf)PDF712 KB
Technical Data for Roof DrainsTechnical Data for Roof DrainsPDF2 MB
Order Guidelines for Roof DrainsOrder Guidelines for Roof DrainsPDF120 KB
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Roof and Overflow Drains
with a 32" x 16" Deck-Top Mounting Plate, 4-1/2" Polyethylene Domes
1830C | Caulk Outlet
1830T | Threaded Outlet
1830Y | No-Hub Outlet

Roof and Overflow Drains
with 19" x 10-1/2" Deck-Top Mounting Plate, High Profile Cast Iron Domes
1831Y | No-Hub Outlet]

  • 1830C Caulk Outlet
  • 1830Y No-Hub Outlet
  • 1831Y High Profile Cast Iron Dome,  No-Hub