STANDARD SIZES (custom sizes available)
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FRAME OPENING Width x Hinge Side
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24” x 24” [610mm x 610mm]
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30” x 36” [762mm x 914mm]
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24” x 36” [610mm x 914mm]
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30” x 48” [762mm x 1219mm]
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30” x 30” [762mm x 762mm]
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36” x 36” [914mm x 914mm]
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OPTIONS
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Enclosed stainless steel horizontal springs for easy opening
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Recessed staple and other locking devices
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Frame skirts for easy casting into a concrete top slab
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Odor reduction gasket riveted to frame
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Fiberglass insulation with metal liner
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Nut rails with stainless steel sliding nuts for attaching cable holders, brackets and other hardware
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Custom lettering
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Stainless steel safety chains with aluminum support posts
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Fall Trough Prevention Systems
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Side drain threaded coupling (instead of standard bottom drain)
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Slip resistant surface bonded to cover plate
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Mill finish (no shop primer)
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Hot dipped galvanized finish
- All 304 stainless steel material
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All 316 stainless steel material
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STANDARD SPECIFICATIONS
The trough frame floor access door shall be Model THS as manufactured by U.S.F. Fabrication, Inc. with the size being specified on the plans.
Cover: 1/4-inch (6.4mm) steel diamond plate cover reinforced for occasional, off-street AASHTO H20-44 wheel loading. Equipped with steel flush lifting handle and 316 stainless steel hold-open arm with red vinyl grip that automatically keeps the cover in its open/upright position. (Upon request, manufacturer shall provide structural calculations showing that the door design meets the loading requirements of AASHTO H20-44.)
Lift Assist: Open stainless steel horizontal springs for easy opening
Frame: Trough section made from 1/4-inch (6.4mm) steel with continuous anchor on all four sides and 1 1/2-inch (38mm) threaded drain coupling.
Hardware: 316 stainless steel hinges and tamper resistant bolts/lock nuts.
Security: A 316 stainless steel slamlock with thread plug, removable outside key and fixed inside handle. The slamlock latches onto a 316 stainless steel striker plate that is bolted to the frame.
Finish: Cover and frame have one coat of shop primer.
Installation: Installation shall be in accordance with the manufacturer’s instructions. The entire frame, including the seat on which the reinforcing rests, shall be supported by concrete or other material designed to support the specified loading.
Warranty: Manufacturer shall guarantee against defects in materials and workmanship for a period of five years.
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