Specification 23740 Series coated cast iron Roof Drain, square heavy-duty ductile iron undergrate with Nikaloy top grate set in square secured frame, non-puncturing flashing collar with weepholes, for 2" roof fill, small sump with roof flange and bottom outlet.
Application Used on smaller sized promenade decks and roofs where foot traffic or vehicles may be present. Heavy-duty ductile iron undergrate with nikaloy top accommodates pesdestrain and large vehicle traffic. Square holes provide ample free area for proper drainage and to intercept debris. Flashing clamp holds membrane or flashing securely to the drain body.