Large Secondary Containment Double Wall Tanks from Assmann Provide Capacities from 150 to 8850 Gallons

Fiber Reinforced Ladder Assemblies for Polyethylene and Plastic Storage Tanks

This polyethylene storage tank 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.

  • The inner tank dome of our plastic storage tank overlaps outer tank sidewall to prevent rainwater, snow, and debris from entering secondary containment, making system ideal for outdoor storage of chemicals.
  • Our Double Wall Storage Tanks provides individualized secondary containment that, when placed with other industrial storage tanks in large containment areas, prevents cross-contamination, and eliminates possible dangers of commingling of reactive chemicals.
  • Small footprint saves space, while portability assures convenient system relocation.
  • Standard lifting lugs and specially designed indentations in the lower sidewall minimize inner tank movement during transport and installation.
  • Wide range of fittings and accessories to meet your specifications for all of our poly tanks.
  • Available with heat tracing and insulation for use with temperature sensitive chemicals.
  • Double Wall Tanks are available in natural color, or blue, green, gray, or black for no extra charge. Custom colors available upon request.

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 also recommends that its Double Wall Tanks be fitted with a top suction line and foot valve to provide constant flow to the pump.

Tank accessories for Assmann industrial storage tanks.

Large double wall secondary containment tanks.

Inner tank dome of double industrial storage tank overlaps outer tank sidewall.

Large double wall tanks, industrial storage tanks.
Model
Number
Capacity
(US
Gals)
Dims
(in)
Weight (lbs)
Linear Polyethylene
Access
Opening
(in)
Pri Sp. Gravity Sec Sp. Gravity
Dia Hgt 1.5 1.9 2.2 1.5 1.9 2.2
IMT 150 150 47 44 N/A 65 82 N/A 65 82 7/16
IMT 250 250 47 61 N/A 95 110 N/A 95 110 7/16
IMT 550 550 60 73 N/A 130 151 N/A 130 159 16
IMT 625 625 47 113 117 152 176 127 162 191 16
IMT 1050 1050 72 87 185 205 233 191 244 283 16
IMT 1550 1550 72 123 283 359 416 309 392 454 16
IMT 2050 2050 72 159 551 691 809 596 748 875 16
IMT 2550 2550 96 119 457 579 671 499 632 732 16
IMT 3050 3050 96 138 636 806 933 694 879 1018 16
IMT 4050 4050 96 177 1178 1492 1728 1178 1492 1728 16
IMT 5250 5250 119 154 1230 1558 1804 1342 1699 1968 16
IMT 6550 6550 119 186 2028 2569 2974 2028 2569 2974 16
IMT 8850 Click here to see dimensions for IMT 8850


Model
Number
Capacity
(US
Gals)
Dims
(in)
Weight (lbs)
Crosslink Polyethylene
Access
Opening
(in)
Pri Sp. Gravity Sec Sp. Gravity
Dia Hgt 1.5 1.9 2.2 1.5 1.9 2.2
IMT 150 150 47 44 N/A 65 82 N/A 65 82 7/16
IMT 250 250 47 61 N/A 95 110 N/A 95 110 7/16
IMT 550 550 60 73 N/A 130 159 N/A 130 159 16
IMT 625 625 47 113 117 152 176 127 162 191 16
IMT 1050 1050 72 87 185 205 226 176 221 256 16
IMT 1550 1550 72 123 279 380 440 283 359 416 16
IMT 2050 2050 72 159 505 633 738 545 697 799 16
IMT 2550 2550 96 119 600 748 866 457 579 671 16
IMT 3050 3050 96 138 739 944 1093 636 806 933 16
IMT 4050 4050 96 177 1158 1476 1700 1178 1492 1728 16
IMT 5250 5250 119 154 1372 1753 2025 1230 1558 1804 16
IMT 6550 6550 119 186 2000 2570 2960 2028 2569 2974 16
IMT 8850 Click here to see dimensions for IMT 8850

Model number availability and individual specifications subject to change without notice. Gallonage and weights are approximate. All wall thicknesses conform to ASTM D-1998.

Assmann Corporation of America
300 North Taylor Road, Garrett, IN 46738 USA
888-357-3181 or 260-357-3181