Petroleum and Chemical Storage Tanks - page 67

Length
Model
Number of Doors
Maximum
Overall Length
Skirt Thickness
R-GLM-48
1
48
.25"
R-GLM-60
2
60
.25"
R-GLM-90
3
90
.25"
R-GLM-120
4
120
.25"
R-GLM-150
5
150
.25"
Round
Grade Level Manways (GLM) are
designed to AASHTO H20
requirements. Round GLMs are
available in sizes ranging from 12" to
48" diameter. Rectangular GLMs are
available in lengths from 48" to 150"
and widths from 48" to 72".
Each manway is constructed using A36
steel plate from 10 gauge to .25" thick.
Standard manways are fabricated with
a 12" skirt depth and fitted with 1.5"
x 2" x 3" steel concrete anchors seal
welded to the manway skirt to ensure
a secure installation. Standard manway
lids are constructed of .375” reinforced
checkered steel plate. Optional .375”
checkered plate reinforced aluminum
lids are available. Steel components
receive a brush blast and are coated
with black enamel paint. Optional
polyurethane or epoxy coatings
are available.
Rectangular manways are custom-
fabricated to site-specific requirements.
Custom diameters and depths
are available upon request.
Model
Number
Manway Skirt
I.D. Inches
Manway Lid
Collar I.D. Inches
Manway Lid
O.D. Inches
Skirt
Thickness
GLM-12
12"
14.5"
14"
10ga
GLM-18
18"
20.5"
20"
7ga
GLM-24
24"
26.5"
26"
7ga
GLM-30
30"
32.5"
32"
7ga
GLM-32
32"
34.5"
34"
7ga
GLM-36
36"
38.5"
38"
7ga
GLM-42
42"
44.5"
44"
.25"
GLM-48
48"
50.5"
50"
.25"
• 67
Grade Level Manways
Concrete Anchors
1.5" x 2" x 3"
Manway Skirt
.375" Checkered Plate
Recessed “D” Ring
for Lifting as
Needed
Manway Lid
Lid Collar
Manway Skirt
Diameter
Aluminum Lid
Steel Lid
.50" x 3"
48"-72"
Round
Rectangular
.50" x 1.5"
Rectangular
Nominal Manway Diameters
1...,57,58,59,60,61,62,63,64,65,66 68,69,70,71,72
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