Model 1031
Roof Drain with 4.00" Gravel Stop and Adjustable Extension
This 15-1/4“ (390) diam. drain is engineered for roofs with the Insulated Roof Membrane Assembly (IRMA). It adjusts to roof thickness on-site by spinning its combination flange clamp and gravel stop assembly around the drain's threaded extension and accommodates roofs between 1-1/4" and 4" thick with up to 2-3/4" of insulation. A 4" perforated stainless steel gravel guard protects drain lines from crushed gravel usually installed with IRMA systems along with a polyethylene dome strainer. Drain body and flange assembly are made of Duco coated cast iron.
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Specifications
| Variations | Expansion Joint (Specify Fig. 1710), Higher Gravel Stop -HGS (Specify Height), L-Shaped Underdeck Clamp -CL, L Speedi-Set® Service Weight - 02(50), 03(75), 04"(100) Sizes Only, LXH Speedi-Set® Extra Heavy., Sump Receiver -R, Underdeck Clamp -C, Vandal Proof - Dome - U, T Threaded Outlet, (2) 3/8” (10) Tappings -TAP |
| Optional Materials | Aluminum Dome -AD, Cast Iron Dome -CID, Galvanized Cast Iron -G, Rough Bronze Dome -RBD |
| Product Type | Roof Drain |


