The 2500 Gallon 15 Degree Cone Bottom Tank by Norwesco is built for full-drain chemical and process service where you need every gallon to evacuate through the bottom. This 2,500-gallon polyethylene cone tank stands 108 inches tall on a 91 x 91 inch footprint and carries a 1.5 specific gravity rating, meaning the tank wall is engineered to safely hold contents up to 1.5 times the weight of water. The 15-degree cone floor moves liquid steadily toward the outlet without the steep stand height a 30- or 45-degree cone demands, which keeps overall installed height manageable while still draining cleanly.
Will it work for your job?
Sizing is where cone bottom tank buyers get surprised, so plan the support structure around real loaded weight, not the empty shell. Filled with water, this tank weighs about 20,850 lbs; loaded to its full 1.5 SG rating it reaches roughly 31,275 lbs. A cone-bottom tank carries that entire load on a stand or steel ring, so your foundation and skirt must be rated for the heavier of those two numbers based on what you are storing. Run your batch volume and chemical SG through our Tank Sizing Calculator and the Tank Sizing Guide before you commit to a stand. For brand and angle selection, the Norwesco cone bottom tank buyer's guide on 15 vs 30 vs 45 degree selection and the complete 2500 gallon 15 degree cone bottom buyer's guide walk through the trade-offs; if you want a steeper drain angle, compare the 2500 gallon 30 degree and 30 degree with poly stand versions.
Chemical compatibility
This is a white polyethylene tank with a 1.5 specific gravity rating. The resin is recorded as HDLPE in our data, but that designation is unconfirmed, so confirm HDLPE versus XLPE with the manufacturer before putting any aggressive chemical into service. At the 1.5 SG rating, this tank is suited to the following chemicals at the listed concentrations, provided you match fitting and gasket materials correctly: Acetic Acid (60%) with PP/PVC fittings and EPDM gaskets; Aluminum Sulfate (50%), PVC and EPDM; Calcium Chloride (40%), PVC and EPDM; DEF (32.5%), which is the lone compatible chemical here needing 316SS fittings rather than PVC, paired with EPDM gaskets; Ferrous Sulfate (20%), PVC and EPDM; Magnesium Chloride (30%), PVC and EPDM; Sodium Carbonate (30%), PVC and EPDM; Urea Solution (50%) with PP/PVC and EPDM; and Ozonated Water (up to 10 PPM), PVC and EPDM. Always verify against the OEM chemical-resistance chart for your specific concentration and storage temperature, since both shift the rating.
The mistake to avoid: check SG before you assume it fits
A 1.5 SG tank does not cover every chemical. Several common process chemicals require a higher 1.9 specific gravity tank and should not be stored in this one: Ethylene Glycol, Ferric Chloride, Ferric Sulfate, Hydrochloric Acid, Hydrofluoric Acid, Hydrofluosilicic Acid, Hydrogen Peroxide, Peracetic Acid, Phosphoric Acid, Polyaluminum Chloride, Potassium Carbonate, Potassium Hydroxide, Propylene Glycol, Sodium Bisulfate, Sodium Bisulfite, Sodium Hypochlorite, Sodium Thiosulfate, Sulfuric Acid, and Zinc Orthophosphate. Several of these also move you off standard EPDM and PVC: Hydrochloric Acid, Hydrofluoric Acid, Hydrofluosilicic Acid, Hydrogen Peroxide, Phosphoric Acid, and Sodium Hypochlorite need Viton gaskets; Sulfuric Acid needs CPVC fittings with Viton; and Peracetic Acid needs 316SS fittings with Aflas. If your application involves any of those, step up to a 1.9 SG tank rather than risk wall fatigue — call 866-418-1777 to spec the 1.9 SG version of this tank. Check the technical drawing on this page for fitting locations, and use our Chemical Compatibility Database to confirm your chemical before ordering.
This Norwesco cone bottom tank ships LTL freight from the Sheldon, Iowa plant, quoted live to your ZIP code. Get a freight estimate through our Freight Cost Estimator or call 866-418-1777 to confirm fittings, SG rating, and freight before you order. For chemical-specific guidance, see the acetic acid, aluminum sulfate, calcium chloride, DEF, ferrous sulfate, magnesium chloride, sodium carbonate, and urea solution pages in our Chemical Compatibility Database.
3 Year Warranty
