Smith 1020 Roof Drain Specs & Options

Dimensional data is subject to manufacturing tolerances and change without notice.

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Outlet Size (A) 2 in. 3 in. 4 in. 5 in. 6 in.
B 6-7/8 6-3/8 5-7/8 5 4-1/2
C 8-5/8 8-3/4 8-3/4 8-1/2 8-1/2
G 4-3/4 4-3/4 4-3/4 6-1/4 6-1/4
H 6 6 6 6-7/8 6-7/8
J 7-3/4 7-3/4 7-3/4 7-3/4 7-3/4
Free Area
(sq. in.)		 102.5 102.5 102.5 102.5 102.5

 

Specifications: The Smith 1020 roof drain is used in flat roof construction. Its large profile dome provides sufficient free area for quick rain water drainage while protecting the drain sump and connecting piping from debris. A wide clamping surface holds flashing and roofing materials without puncturing. This drain comes regularly furnished with a Duco cast iron body combined with a flashing clamp and gravel stop, and a polyethylene dome. 

Recommended Deck Openings

Outlet Size (in.) With Sump
Receiver (.in)		 Without Sump
Receiver (.in)
2 - 6 in. 17 dia. 14 dia.

 

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Outlet Types

  • Caulk Outlet
  • No-Hub Adaptor (Specify fig. 2646Y)
  • Threaded Outlet

Variations

  • Extension (specify height) (-E)
  • "L" Shaped Underdeck Clamp (-CL)
  • Secondary Flashing Clamp (-C2)
  • Sump Receiver (-R)
  • Underdeck Clamp (-C)
  • Vandal Proof Dome (-U)

Optional Materials

  • All Aluminum (-AA)
  • Aluminum Dome (-AD)*
  • Cast Iron Dome (-CID)*
  • Galvanized Cast Iron Dome (-CIDG)*
  • Galvanized Cast Iron Body & Collar (-G)
  • Rough Bronze Dome (-RBD)*
  • Stainless Steel (specify fig. 9780)

*Optional Domes' Free Area

Dome Material 2 - 6 Outlets
Aluminum Dome  98
Cast Iron Dome  80
Bronze Dome 95