USF CAST IRON ADJUSTING RINGS Used when the adjustment height is 1" thicker than the cover seat. It is restricted to specific adjustment heights and is limited to certain standard size rings and covers. Please contact our Customer Service Dept. for a recommendation on your particular application. All bearing surfaces are machined to ensure proper fit and prevent covers from rattling.
USF 1345 RING AND GRATE SERIES
23 1/2
8 7/8
1
5682
1 1/4
2 3/4
6
21 7/8 26 5/16 24 1/2
COVER DIAMETER
COVER THICKNESS
HEIGHT ADJUSTMENT
ACTUAL RINGS
USF NO.
2334 2335 2337
23 1/2 23 1/2 23 1/4
1 1
1 1/2
1345 1345
2
646, 678 766, 1346
1 1/4
5685
1
1 1/2
8 7/8
USF 1346 RING AND 5685 GRATE
Grates: 5682 (FA=145in²), 5685 (FA=155in²)
23 1/4
8 7/8
1
AASHTO M306
Bolted
1 1/4
3
6
21 7/8 24 25 3/8
Grate: 5685 (FA=155in²)
AASHTO M306
Bolted
CATCH BASINS
4
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