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Double
Wall Storage Tanks from ACO Assman |
 Assmann
Double-Wall Storage Tanks with built-in containment security
New Double-Wall
Storage Tank system provides primary and secondary containment
in one space-saving integral unit
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This
system consists of a primary inner tank and a secondary,
locked-on outer tank with a capacity of 120% of the
inner tank, exceeding EPA standards.
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Inner
tank dome overlaps outer tank sidewall to prevent rainwater,
snow, and debris from entering secondary containment, making
system ideal for outdoor storage of chemicals.
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Provides
individualized secondary containment that, when placed with
other tanks in large containment areas, prevents cross-contamination,
and eliminates possible dangers of commingling of reactive
chemicals.
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Small
footprint saves space, while portability assures convenient
system relocation.
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Standard
lifting lugs and specially designed indentations in the
lower sidewall minimize inner tank movement during transport
and installation.
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Wide
range of fittings and accessories to meet your specifications.
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Available
with heat tracing and insulation for use with temperature
sensitive chemicals.
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Double-Wall
Tanks are available in natural color, or blue, green, gray,
or black for no extra charge. Custom colors available upon
request.
| These
unique tanks are built to last! |
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Tired of domes that collapse? Assmann’s molding process
provides uniform sidewalls and domes that eliminate this
problem. Our Double-Wall Tanks are designed with wall
thicknesses equal to or greater than that required by
ASTM D-1998 standards. By calculating the wall thickness
at the bottom of each tank where hoop stress is greatest,
we then produce uniform thickness throughout the entire
wall. This allows for a more uniform cure with less stress,
resulting in greater strength in the top portion of the
tank, an area of vital importance when securing seismic
or wind-load restraint systems.
Assmann polyethylene tanks are air-cooled, not water-cooled.
We’ve chosen this slower process to ensure better cures
for more stable parts. All crosslinked Assmann tanks consistently
achieve gel tests in the high 70% to low 80% range throughout
the tank, significantly higher than the ASTM minimum of
60%. What does this mean to the end user? Assmann tanks
last longer for long-term storage of harsh chemicals.
Assmann is an ISO 9001 registered company. Testing and
inspection procedures are in place to insure our customers
are satisfied with every tank we manufacture.
Customize an Assmann Double-Wall Tank with these options
to fit your needs:
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Seismic
restraint
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Wind-load restraint
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Ultrasonic level device
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Reverse float level device
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Leak detection systems
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High-low level alarms
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Heat tracing and insulation
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Ladders
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Top
discharge with foot valve
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Optional
21" and 24" manways
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Bottom
outlets
Assmann
Corporation advises that using its Double-Wall Tank system
with a bottom sidewall fitting may not meet local codes
for secondary containment, as tank contents could escape
containment area in the event of fitting damage. Assmann
recommends that its Double-Wall Tanks be fitted with a
top suction line and foot valve to provide constant flow
to the pump.
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Top
discharge with foot valve is optional. |
Inner
tank’s unique dome interlocks with outer tank’s sidewall
to seal secondary containment area from unwanted materials.
Lifting lug assemblies, designed to hold up to twice the
empty tank’s weight, are standard. |
Heat
tracing and insulation are available for use with temperature
sensitive chemicals. |
Double Wall Tank Dimensions
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Model Number |
Capacity |
Dimensions (inches) |
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US Gallons |
Liters |
Diameter |
Height |
Standard
Access Opening |
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IMT 550 |
550
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2082 |
60
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73 |
16
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IMT 1050 |
1050 |
3975 |
72 |
87
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16 |
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IMT 1550 |
1550 |
5867 |
72 |
123 |
16 |
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IMT 2550 |
2550 |
9653 |
96 |
119 |
16 |
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IMT 3050 |
3050 |
11545 |
96 |
138 |
16 |
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IMT 4050 |
4050 |
15330 |
96 |
177 |
16 |
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IMT 5250 |
5250 |
19873 |
119 |
154 |
16 |
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IMT 6550 |
6550 |
24794 |
119 |
186 |
16 |
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Model
number availability and individual specifications subject
to change without notice. All specifications approximate.
All wall thicknesses conform to ASTM D-1998 standards.
Consult factory on specific uses for Assmann Double-Wall
Tanks.
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