Onion Tanks Self Supporting Tanks Self supporting tanks are ideal for the use as dump tanks. Equipped with either foam or air collars they are quickly and easily employed. Perfect for fuel pipe or tank leaks, auxiliary water storage, etc.
Packed in a readily deployable storage bag. Easy lift handles available. Durable coated fabric and fitting options available.
Self Supporting Onion Tanks A perfect solution when storage and manpower is a concern.
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Onion Tanks Self Supporting Tanks Tank Gallons/Liters Low Side (LS) or High Side (HS) Models
Base Diameter Std./Meters
Top Height Diameter Filled Std./Meters Std./Meters
Weight lbs./kg
Approx. Folded Dimensions Std./Meters
WST LS-250 / 946 WST LS-500 / 1893 WST LS-1000 / 3785 WST LS-1500 / 5678 WST LS-2000 / 7570 WST LS-2500 / 9463 WST LS-3000 / 11355 WST LS-3500 / 13248 WST LS-4000 / 15140 WST LS-5000 / 18925 WST LS-6000 / 22710 WST LS-10000 / 37850
5'10" / 1.8 7'0" / 22 9'5" / 2.9 11'8" / 3.6 13'0" / 4.0 14'4" / 4.4 15'8" / 4.8 17'0" / 5.2 18'0" / 5.5 19'8" / 6.0 21'6" / 6.6 26'9" / 8.2
3'7" / 1.1 4'10" / 1.5 6'11" / 2.1 8'8" / 2.7 10'0" / 3.1 11'2" / 3.4 12'3" / 3.7 13'2" / 4 14'2" / 4.3 15/10" / 4.8 17'8" / 5.4 22'11" / 7.0
28'/ .7 33" / .8 33" / .8 33" / .8 33" / .8 33" / .8 33" / .8 33" / .8 33" / .8 33" / .8 33" / .8 33" / .8
27 / 123 39 / 17.7 54 / 24.5 67 / 30.4 75 / 34 84 / 38 99 / 45 105 / 47.6 11.4 / 51.7 125 / 56.7 143 / 64.9 200 / 90.1
22" dia. x 16" / .6 dia x .4 25" x 18" / .7 x .5 25" x 22" / .7 x .6 28" x 22" / .8 x .6 30" x 22" / .8 x .6 34" x 22" / .9 x .6 34" x 24" / .9 x .7 36" x 24" / .9 x .7 38" x 24" / 1.0 x .7 38" x 28" / 1.0 x .7 38" x 32" / 1.0 x .8 42" x 36" / 1.1 x .9
WST HS-500 / 1893 WST HS-1000 / 3785 WST HS-1200 / 4542 WST HS-1600 / 6056 WST HS-1800 / 6813 WST HS-2000 / 7570 WST HS-2500 / 9463 WST HS-3000 / 11355 WST HS-4000 / 15140 WST HS-5000 / 18925 WST HS-6000 / 22710 WST HS-8000 / 30280 WST HS-10000 / 37850 WST HS-14000 / 52990 WST HS-20000 / 75700
6'9" / 2.1 8'6" / 2.6 9'8" / 3.0 10'8" / 3.3 11'0" / 3.4 11'9" / 3.6 12'8" / 3.9 14'2" / 4.3 16'2" / 4.9 16'2" / 4.9 17'4" / 5.3 18'0" / 5.5 19'4" / 5.9 21'9" x 6.6 26'0" / 7.9
4'0" / 1.2 5'6" / 1.7 5'10" / 1.8 6'10" / 2.1 7'3" / 2.2 7'9" / 2.4 8'6" / 2.6 9'2" / 2.8 11'0" / 3.4 10'6" / 3.2 11'8" / 3.6 12'0" / 3.7 12'0" / 3.7 13'9" / 4.2 16'0" / 4.8
40" / 1.0 44" / 1.1 44" /1.1 44" x 1.1 46" / 1.2 48" / 1.2 48" / 1.2 48" / 1.2 48" / 1.2 60" / 1.5 60" / 1.5 70" / 1.8 80" / 2.0 90" / 2.3 96" / 2.4
39 / 17.7 54 / 24.5 59 / 26.8 67 / 30.4 72 / 32.7 75 / 34 84 / 38 99 / 45 114 / 517 125 / 56.7 143 / 64.9 169 / 77 200 / 90.1 249 / 113 499 / 226
25" x 18" / .6 x .4 25" x 22" / .7 x .5 26" x 22" / .7 x .6 28" x 22" / .8 x .6 30" x 22" / .8 x .6 30" x 22" / .8 x .6 34" x 22 / .9 x .6 34" x 24" / .9 x .7 38" x 24" /1.0 x .7 38" x 28" / 1.9 x .7 38" x 32" / 1.0 x .8 40" x 34" / 1.0 x .9 42" x 36" / 1.1 x .9 44" x 40 " / 1.1 x 1.0 48" x 48" / 1.2 x 1.2
****NOTE: The information contained herein is considered accurate. However, no warranty is expressed or implied regarding the accuracy of the data, the results obtained from use thereof, or that any such use will not infringe upon any patent. This information is furnished upon condition that the person receiving it shall evaluate its suitability for the specific application.
250 — 20,000 gallons Larger sizes available
Heavy duty foam collar (self rising). Heavy duty air collar. Heavy duty 28 oz. floor (standard). 2 1/2” NST female flange (standard). 1 1/2” - 6” male or female flanges available. Ground covers and top covers available.
Camlock and storz adapters available from 2 1/2” - 6”. Vinyl, NSF-61 approved (potable, chemical & fuel resistant, urethanes). Storage bag included.
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