Zurn Z712-HDG Frame and Grate System shall be 120[3048] long, 12 [305] wide reveal and have a
8.5 [216] clear opening. Shall mechanically lock into the concrete surround every 12 [305]. Shall be provided with the standard GDC
grate that locks down to the frame. Zurn 12 [305] wide reveal Galvanized Ductile Iron Slotted Grate. Ductile Iron conforms to ASTM
specification A536-84, Grade 80-55-06. Galvanized Ductile Iron grate is rated class C per the DIN EN1433 top load classifications.
Supplied in 24 [608] nominal lengths with 0.81[21] wide slots, and 1.5 [38] bearing depth. Grate has an open area of 57.50 sq. in per
ft.[121708 sq. mm per meter]. The 0.25 [6] thick Galvanized Carbon Steel Frame Assembly conforms to ASTM specification A36 and
Galvanizing conforms to ASTM specification A123 with 12 - 4 [102] long concrete anchors per 120 [3048]. Grate lockdown bars are
integral to the frame. All welds must be performed by a certified welder per ASTM standard AWS D1.1. Frames Shall be produced in
the USA.
Features:
- Heavy-duty frame
- 4-corner grate lock down for dynamic loading situations
- Co-plane straps to keep rails parallel
- Longer standard length sections
- USA configurable