U.S. FOUNDRY & MANUFACTURING CORPORATION
CAST IRON
CI-3
USF SQUARE GRATES SUMMARY
R = RESTRICTED GRATE OPENING.
*
SEE PAGE CI-1 FOR DESCRIPTION OF LOAD RATING.
**
= GRATE SET
LISTED IN ORDER OF SHORTEST BEARING BAR DIMENSION “A”, LENGTH “B” AND SEAT HEIGHT.
6110 51 11
w
11
w
w
v
X 10 45 L L
6125 53-
R 13 13
1
1
X 3 55 L L
6279 55-
R 13
1
13
1
1
1
1
1
X 1
1
55
H H
6232 52 14
e
14
e
1
b
X 6
4
90
L L
6121 55-
R 15 15 1
2
1
1
X 1
1
55
H H
6205 52 17
w
17
w
1
1
1
X 7
e
120
H H
6271 54-
R 22 22 1
1
1
2
X 4 180 H H
6148 52 22 22 1
w
1
2
X 8
c
175
H H
6259 53 23
w
23
w
1
1
1
f
X 6
w
290
H H
6196 52 23
w
23
w
1
w
2
3
X 10
4
300
L M
6001 53-
R 23
w
23
w
1
1
1
X 6
3
153
H H
6155 55-
R 24 24 1
1
1
v
X 3
v
220
L M
6230 52 24 24 1
1
1
2
X 9
b
245
M H
6235 54-
R 24 24 1
1
1
2
X 4
1
225
H H
6249 54-
R 24 24 2 1
1
X 4
1
240
L H
6160 53-
R 24 24 2 1
w
X 6 220 L M
6336 52 25
1
25
1
1 1
1
X 10
2
240
H H
6337 53 25
w
25
w
2 1
1
X 7
2
317
H H
6179 54-
R 26 26 1
1
X 5
2
220
L L
6217 54-
R 27
c
27
c
1
1
1
2
X 5
2
260
L M
6314 53 28 28 2
1
X 8 224 H H
6198 53 28 28 2 1
d
X 7 240 H H
6278 53 28 28 2
2
1
3
X 7 295 H H
6248 52 29
w
29
w
1
1
1
3
X 12
c
345
H H
6245 52 29
w
29
w
1
1
1
r
X 12
c
375
L H
6246 54-
R 29
w
29
w
1
1
1
3
X 6 320 L H
6355 56-
R 29
w
29
w
1
1
3
d
X 3
d
465
H H
6203 54-
R 30 30 2 1 X 6 335 H H
6349 54 31
w
31
w
1
1
1
f
X 6
5
390
H H
6323 56-
R 35 35 2 2
d
X 2
d
250
L H
6247 54-
R 35
d
35
d
1
1
1
d
X 6
1
545
L M
6354 56-
R 35
d
35
d
2 3
2
X 3
2
500
H
H
6319** 54 36 36 2
1
X 7 297 (-) H
6175** 56-
R 36
1
36
1
4
1
3
2
X 3
2
675
H H
6241 54 37
w
37
w
1
1
1
e
X 8
3
715
H H
6335 54 38
e
38
e
2 1
2
X 8
3
654
H H
2-
SIDED
BEARING
4-
SIDED
BEARING
LOAD RATING*
GRATE GRATE WIDTH LENGTH SEAT SLOT SIZE FLOW
NUMBER STYLE “A” “B” HEIGHT AREA