U.S. FOUNDRY & MANUFACTURING CORPORATION
CAST IRON
CI-8
1.
Restricted grate opening.
2.
Designed to fit over 15" CMP pipe.
1.
Designed to fit over 30" CMP pipe.
USF 5671 ROUND GRATE
USF 5670 ROUND GRATE
32 3/8
3/8
3
1
30"
CMP
13 5/8
LOAD FLOW
RATING AREA
LIGHT DUTY 50
LOAD FLOW
RATING AREA
LIGHT DUTY 52
LOAD FLOW
RATING AREA
LIGHT DUTY 195
18
7/8
2
5 7/8
1/2
15
C.M.P.
USF GRATES 5680 THROUGH 5685
USF 5690 ROUND GRATE
GRATE GRATE A B C D FLOW LOAD
NUMBER STYLE AREA RATING*
5680 3 16
2
1
1
1
3
6
w
90
H
5681 5 37 1
e
1
1
7 465
H
5682 3 23
1
1 1
2
8
d
155
H
5685 3 23
2
1 1
2
8
c
155
H
1.
Not suitable for traffic or pedestrian applications.
BEEHIVE GRATE
1 1/2
2 1/2
14 3/4
12
PIPE SIZE