U.S. FOUNDRY & MANUFACTURING CORPORATION
CAST IRON
CI-5
RECTANGULAR GRATES SUMMARY
LISTED IN ORDER OF SHORTEST BEARING BAR DIMENSION “A”, LENGTH “B” AND SEAT HEIGHT.
R = RESTRICTED GRATE OPENING.
*
SEE PAGE CI-1 FOR DESCRIPTION OF LOAD RATING.
(-)
DASH UNDER LOAD RATING INDICATES CASTING IS NOT TO BE USED FOR THAT CONFIGURATION.
6456 53-
R 20 24 1
1
1
X 4
w
138
H (-) H
6133 52 20
g
23
w
1
2
1
r
X 8
v
215
L L L
6151 51 21 28
w
2
1
1
X 17 220 H (-) H
6320 54-
R 21
2
19
d
2 2
e
X 2
w
75
H H H
6321 54-
R 21
2
23
d
2 2
e
X 3
1
100
H H H
6322 54-
R 21
2
27
1
2 2
e
X 4
e
120
H H H
6102 52 21
2
45
w
1
1
1
f
X 9
3
473
H (-) (-)
6113 52 21
1
24 2 1
1
X 8
c
235
H (-) (-)
6371 56-
R 21
1
47 3
1
1
e
X 4
v
382 (-)
H (-)
6152 51 21
w
33
w
2
w
1
1
X 19 370 H (-) H
6015 51 21
w
33
w
2
w
1
2
X 19 260 H (-) H
6352 56-
R 22 48 1
2
1
1
X 4
e
420
H (-) H
6457 53-
R 23 24 1
1
1
X 5
1
161
H (-) H
6002 53-
R 23
w
35
w
1
1
1
X 6
3
233
H (-) H
6429 53 23
w
35
w
1
1
1
2
X 6
d
395
H L H
6237 52 23
w
35
w
1
w
1
1
X 9
c
445
L L H
6238 52 23
w
35
w
1
w
1
1
X 9
c
445
L L H
6228 51 23
c
21
1
2
1
1
2
X 21
e
240 (-)
H H
6191 52 23
c
35
1
1
1
1
5
X 9
4
365 (-) (-) (-)
6265 52 24 12 1
w
1
X 10
1
125 (-)
L L
6153 54-
R 24 14 2
r
1
4
X 4
d
220
H H H
6240 52 24 35 1
w
2
X 9
w
390
H L H
6242 52 24 35 3 2
X 9
w
390
H H H
6190 52 24 36 1
1
1
r
X 9
1
285
H (-) H
6317 53 24 36 2 1
2
X 6
d
408
H (-) H
6218 54-
R 24 36 2 1
e
X 4
d
380
L (-) H
6326 54-
R 25
2
24 1
2
1
2
X 4
w
230
H (-) H
6353 56-
R 25
w
47
w
2
e
1
1
X 4
1
415
H (-) H
6296 52 26 12 1
1
1/2
X 11
2
90
H H H
6458 53-
R 26 24 1
1
1
X 6
1
192 (-)
H H
6165 55-
R 26 32
e
4 3
e
X 3
d
430
H H H
6195 53-
R 26 36 1
1
1
4
X 6
f
340
H (-) H
6311 56-
R 26 40 2
1
X 4
v
217
H (-) H
6137 51 26
2
23 1
1
2
2
X 21
w
290 (-)
L L
6250 52 27 24 2
3
1
v
X 10
c
220 (-)
H H
6270 52 27 24 5
1
1
1
X 10
1
250 (-)
H (-)
6275 52 27 33 4
1
1
1
X 10
1
345
H (-) (-)
6347 53 27
2
39
1
2 1
1
X 7
5
545
H (-) H
6213 52 27
w
35
w
2 1
f
X 11
t
425
M L H
6210 52 27
c
35
c
2 1
d
X 10
w
445
L (-) H
6209 53 27
c
35
c
2 1
d
X 7
f
455
H L H
6330 - 27
c
35
c
2
Varies 265
H (-) H
6208 52 27
c
36 1
1
1
5
X 10
w
435
L (-) H
6280 54-
R 27
c
51
1
1
1
1
d
X 5
r
595
L (-) H
6215 52 28 31 2
2
1
1
X 11 360 M (-) H
2-
SIDED
SHORT
SPAN
2-
SIDED
LONG
SPAN
4-
SIDED
BEARING
GRATE GRATE WIDTH LENGTH SEAT SLOT SIZE FLOW
NUMBER STYLE “A” “B” HEIGHT AREA
LOAD RATING*