Frank Pattern 85N Roof Drain Specifications

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

Frank Pattern 850 Series Specifications

Part Number Description Drain Connection Drain Pipe Size Dimensions (inches)
A B C D E
852N 2" Bottom Outlet No Hub 2-in. 2-5/16 8-1/2 - - -
852SN 2" Side Outlet No Hub 2-in. 2-5/16 8-3/4 4-13/16 4-3/8 9-1/8
853N 3" Bottom Outlet No Hub 3-in. 3-5/16 8-1/2 - - -
853SN 3" Side Outlet No Hub 3-in. 3-5/16 8-3/4 4-13/16 3-13/16 9-1/8
854N 4" Bottom Outlet No Hub 4-in. 4-3/8 8-3/4 - - -
854SN 4" Side Outlet No Hub 4-in. 4-3/8 8-3/4 4-13/16 3-5/16 9-1/8

 

Specifications: This Frank Pattern 85N no-hub, bottom-outlet (and side outlet) roof drains are suitable for built-up hot mop and single-ply roof systems. Specifically, on roofs where water can collect. The drain's cast iron main dome body and top flange are coated for corrosion resistance. 

The drain consists of:

  • A cast iron main body.
  • Flashing ring leaf guard.
  • Top flange.
  • Removable twist-off strainer dome..
  • Stainless steel fasteners. 

Compliance

  • ASME A112.6.4 standards listed in IAPMO File: 4192
  • Uniform Plumbing Code (UPC)
  • International Plumbing Code (IPC)

Replacement Parts List

Part Number
 Description QTY
850-003 Strainer Dome Grate 1
850-006 Flashing Ring 1
850-043 Studs, 5/16-18 x 3 3
850-004 Nuts, 5/16-18 3