Cast Iron Manhole Covers

CAST IRON SPECIFICATION >>>

MATERIAL:	Casting materials conform to specification ASTM-A48 Class 30B, Gray Cast Iron, unless otherwise specified
APPEARANCE:	Castings are free from blowholes, shrinkage or other imperfections not true to pattern.
MANUFACTURING:	Castings are manufactured with critical dimensions conforming to those specified on respective data sheets and drawings. Critical dimensions are defined as those that effect the load bearing capacity, interchangeability and drainage opening where applicable. Noncritical dimensions may change slightly to facilitate proper molding and casting technique. We reserve the right to make modifications to these products as required without notification.
TOLERANCES:	Casting Tolerances, unless otherwise specified, are plus or minus 1/16 inch, and an additional plus or minus 1/16 inch per foot of dimension. Notwithstanding these tolerances, all frames, covers, grates and curb hoods of the same nominal size are interchangeable.
MACHINING:	Bearing surfaces of circular heavy and medium duty manhole rings, covers and grates are machined to insure proper fit and prevent rattling.
WEIGHTS:	Casting weights are approximate and shall be within plus or minus 5% of catalog published weight.
PAINT:	Castings are supplied unpainted as a standard (See U.S. Foundry's No Paint Policy). For special paint applications, contact our customer service department.

LOAD DESIGNATIONS FOR CAST IRON PRODUCTS >>>

CLASSIFICATION	LOAD APPLICATIONS	PROOF LOAD TEST
(H) HEAVY DUTY	Highway traffic loads or 16,000 lb. Wheel loads	25,000 lbs. * (Ref: Commercial Item Description A-A 60005)
(M) MEDIUM DUTY	Driveways, parking lots, ramps and other similar applications where wheel loads do not exceed 12,000 lbs.	18,000 lbs. *
(L) LIGHT DUTY	Areas such as sidewalks, terraces and other areas which do not receive vehicular traffic.	1,000 lbs. *

There are currently 135 items in the list

Cover Diameter	Load Rating	Options	Series

USF Type	Diameter	Seat Height	Load Rating	Weight
A	22-3/4	2	Heavy Duty	165
AA	32-1/8	1-1/2	Heavy Duty	285
AC	34-1/8	1-1/2	Heavy Duty	260
AD	37	1-3/8	Heavy Duty	425
AE	37	1-3/8	Heavy Duty	440
AJ	23-3/4	½	Light Duty	55
AK	23-3/4	½	Medium Duty	180
AM	23-3/4	5/8	Medium Duty	80
AO	23-5/16	1-3/8	Heavy Duty	160
AQ	31-7/16	1-7/16	Heavy Duty	315
AS	25-3/4	2	Heavy Duty	190
AT	23-5/16	1-3/8	Heavy Duty	140
AU	23-3/4	1-3/16	Heavy Duty	170
AV	27	1	Medium Duty	100
AW	31-7/16	2	Heavy Duty	315
AX	34	1-3/8	Heavy Duty	330
AY	26-3/4	2-1/2	Heavy Duty	225
AZ	38	1-1/2	Heavy Duty	475
B	22-3/4	2	Heavy Duty	130
BA	22-3/4	1-1/2	Heavy Duty	125
BB	25-1/2	¾	Light Duty	80
BD	23-3/4	¾	Light Duty	65
BG	29	1-1/4	Heavy Duty	250
BH	25-1/8	1-1/4	Heavy Duty	145
BI	25-3/4	1-1/4	Heavy Duty	150
BJ	23-3/4	1-1/4	Heavy Duty	200
BL	25-1/2	1-1/2	Heavy Duty	120
BM	31-1/2	1-1/2	Heavy Duty	265
BN	26-3/4	1-1/4	Heavy Duty	185
BP	23-3/4	¾	Light Duty	55
BR	25-3/4	2	Heavy Duty	190
BT	25-1/2	1-5/8	Light Duty	100
BV	25-3/4	1	Heavy Duty	140
BW	25-3/4	1	Heavy Duty	140
BX	23-1/2	1	Heavy Duty	205
BY	23-1/4	1	Heavy Duty	145
C	22-3/4	2	Heavy Duty	160
CE	23-3/4	1-1/4	Heavy Duty	145
CF	34-1/8	1-1/2	Heavy Duty	260
CH	23-1/4	1-1/2	Heavy Duty	125
CJ	23-1/4	1	Heavy Duty	120
CK	23-1/4	1-1/2	Heavy Duty	120
CL	34-3/4	1	Heavy Duty	245
CM	23-3/4	1-1/4	Heavy Duty	130
CM-AK	23-3/4	½	Medium Duty	180
CN	26-3/4	1-5/16	Heavy Duty	140
CO	31-15/16	1-3/8	Heavy Duty	295
CQ	23-1/4	1-1/2	Heavy Duty	120
CR	35-3/4"	1-1/4"	Heavy Duty	220
CT	23-3/4	1-3/8	Heavy Duty	190
CU	25-3/8	1-1/2	Heavy Duty	145
CV	35-3/8	1-1/4	Heavy Duty	360
CY	23-1/4	1-1/2	Heavy Duty	120
CZ	23-3/4	1-1/4	Heavy Duty	180
D	22-3/4	2	Heavy Duty	125
DA	23-1/4	1-1/4	Heavy Duty	145
DB	23-1/4	1-1/4	Heavy Duty	145
DC	26	1-1/8	Heavy Duty	175
DE	21-3/4	1	Heavy Duty	85
DG	22	1-1/2	Heavy Duty	80
DH	23-3/4	1	Heavy Duty	135
DI	23-3/4	1-1/4	Heavy Duty	130
DI-AS	25-3/4	2	Heavy Duty	210
DJ	26-3/4	1-1/4	Heavy Duty	185
DK	23-3/4	1-1/4	Heavy Duty	200
DL	23-3/4	1-3/16	Heavy Duty	170
DM	34-1/8	1-1/2	Heavy Duty	245
DN	25-3/4	2	Heavy Duty	200
DO	32-1/8	1-1/2	Heavy Duty	290
DP	26	1-3/8	Heavy Duty	160
DQ	23-1/2	2	Heavy Duty	115
DS	23-1/2	1-1/2	Heavy Duty	125
DT	21-3/4	1-1/2	Heavy Duty	115
DV	19-1/2	1-5/8	Heavy Duty	70
DW	22-3/4	2	Heavy Duty	185
DX	22-3/4	2	Heavy Duty	165
DY	23-3/4	1-1/4	Heavy Duty	150
DZ	23-3/4	1-1/4	Heavy Duty	145
E	23-3/4	1-1/4	Heavy Duty	130
EB	30-3/4	1-1/2	Heavy Duty	215
EF	22-1/4	1-1/2	Heavy Duty	105
EG	22-3/4	2	Heavy Duty	130
EH	34-1/8	1-1/2	Heavy Duty	235
EI	23-3/4	1-1/4	Heavy Duty	125
EJ	32-1/8	1-1/2	Heavy Duty	280
EK	23-3/4	1-1/4	Heavy Duty	130
EL	22-3/4	2	Heavy Duty	155
EN	22-1/4	1-1/2	Heavy Duty	105
EP	22-3/4	2	Heavy Duty	150
EQ	23-1/2	1-3/8	Heavy Duty	105
ES	23-1/2	1-3/8	Heavy Duty	125
EW	23-3/4	5/8	Light Duty	80
EX	22-3/4	2	Heavy Duty	165
EY	22-3/4	2	Heavy Duty	160
F	23-3/4	1-1/4	Heavy Duty	145
G	22-3/4	2	Heavy Duty	130
GB	22-1/4	1-1/2	Heavy Duty	110
GB-C	22-3/4	2	Heavy Duty	160
GD	20	1-3/8	Light Duty	50
GJ	34-1/8	1-1/2	Heavy Duty	230
GL	22-3/4	2	Heavy Duty	165
GO	23-1/2	1	Heavy Duty	125
H	23-3/4	1-1/4	Heavy Duty	150
J	23-3/4	1-1/4	Heavy Duty	150
JT	22-3/4	2	Heavy Duty	160
K	23-3/4	1-1/4	Light Duty	70
KD	22-3/4	2	Heavy Duty	165
KF	27-7/8	1-1/2	Heavy Duty	135
KK	23-1/2	1	Heavy Duty	135
KL	23-1/2	1	Heavy Duty	125
KM	23-1/2	1	Heavy Duty	130
KP	23-1/2	1	Heavy Duty	125
KS	25-1/2	1-1/2	Heavy Duty	125
KU	23-1/2	1	Heavy Duty	125
KV	31-3/4	1-3/8	Heavy Duty	190
LT	23-1/2	1	Heavy Duty	120
M	22-1/4	1-1/2	Heavy Duty	105
MB	22-1/4	1-1/2	Heavy Duty	105
N	22-1/4	1-1/2	Heavy Duty	125
P	22-1/4	1-1/2	Light Duty	90
PA	22-1/2	¾	Light Duty	70
R	24-3/4	1-1/2	Heavy Duty	145
RA-SS	25-3/8	1-1/2	Heavy Duty	155
S	22-3/4	2	Heavy Duty	125
T	34-1/8	1-1/2	Heavy Duty	260
U	34-1/8	1-1/2	Heavy Duty	260
V	34-1/8	1-1/2	Heavy Duty	280
W	23-3/4	1-1/4	Heavy Duty	165
X	23-3/4	1-1/4	Heavy Duty	200
XB	23-3/4	1-3/8	Heavy Duty	190
XC-B	22-3/4	2	Heavy Duty	130
Y	31-9/16	1-7/16	Heavy Duty	315
Z	31-7/16	1-7/16	Heavy Duty	340
ZA	31-7/16	1-7/16	Heavy Duty	340
ZB	31-9/16	1-7/16	Heavy Duty	340

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Cast Iron Manhole Covers

CAST IRON SPECIFICATION >>>

LOAD DESIGNATIONS FOR CAST IRON PRODUCTS >>>

<All>
Series AC
Series A
Series AA
Series AD
Series AJ
Series AM
Series AO
Series AQ
Series AS
Series AU
Series BD
Series BL
Series BN
Series BV
Series CH
Series DA
Series DH
Series E
Series EF
Series Y