The Norwesco 2500 Gallon 15 Degree Cone Bottom Tank is built for chemical service that needs full drainage. Molded from high density linear polyethylene (HDLPE) in blue, it carries a 1.9 specific gravity rating, which means it is engineered to hold liquids up to 1.9 times the weight of water. The shallow 15-degree cone discharges through a single point so the tank empties more completely than a flat-bottom vessel, which matters when you are working with settling solutions, slurries, or batches you do not want sitting at the bottom. At 2500 gallons this cone bottom tank measures 108 inches tall on a 91 x 91 inch footprint.
Will this cone bottom tank work for your application?
Plan your support structure around the loaded weight, not the empty tank. Filled with plain water this tank holds roughly 20,850 pounds of contents; at its maximum 1.9 SG rating the contents can reach about 39,615 pounds. A 15-degree cone tank must be fully supported in a steel or poly stand sized for the loaded weight, since the cone leaves no flat base to sit on. Spec your stand and pad for the full 39,615 lb max-rated load on the 91 x 91 inch footprint, and confirm both are rated before delivery. At 1.9 SG this is the highest specific-gravity rating Norwesco offers in this line, so there is no heavier-rated upgrade to step into if your liquid runs denser. If you are weighing this against a steeper 30-degree or 45-degree cone for faster or heavier-solids drainage, the Norwesco cone bottom tank buyer's guide walks through the trade-offs, and the 2500 gallon 15 degree complete buyer's guide covers this exact size. Sizing your batch volume against tank capacity? Run the numbers with the Tank Sizing Calculator and the Tank Sizing Guide.
Chemical compatibility
This tank is molded from HDLPE and rated to 1.9 specific gravity. Because the resin is listed as HDLPE, confirm whether your service requires HDLPE or a cross-linked (XLPE) tank before committing to chemical use, as some aggressive chemicals call for XLPE. Compatibility always depends on concentration, temperature, and the right fittings and gaskets. Verified against the OEM chemical-resistance chart (concentration- and temperature-specific), the following are compatible with this resin and SG rating: acetic acid (60%), aluminum sulfate (50%), calcium chloride (40%), DEF (32.5%), ethylene glycol (100%), ferric chloride (50%), ferric sulfate (60%), ferrous sulfate (20%), hydrochloric acid (37%), hydrofluoric acid (48%), hydrofluosilicic acid (26%), hydrogen peroxide (50%), magnesium chloride (30%), peracetic acid (30%), phosphoric acid (85%), polyaluminum chloride, potassium carbonate (50%), potassium hydroxide (saturated), propylene glycol, sodium bisulfate, sodium bisulfite, sodium carbonate (30%), sodium hypochlorite (<16.5%), sodium thiosulfate (40%), sulfuric acid (98%), urea solution (50%), zinc orthophosphate, and ozonated water (up to 10 PPM, the one compatible chemical here without a dedicated reference page).
Match the fittings and gaskets to the chemical
The biggest mistake on a chemical cone tank is putting the right tank under the wrong fitting and gasket. For the EPDM-gasket group, which covers most of the salts, glycols, carbonates, hydroxides, and urea solution above, PVC fittings with EPDM gaskets are the standard pairing. The oxidizers and strong acids change the requirement: sodium hypochlorite, hydrogen peroxide, hydrofluoric acid, hydrofluosilicic acid, phosphoric acid, and sulfuric acid call for Viton gaskets, with CPVC fittings on 98% sulfuric; DEF wants 316 stainless with EPDM; and peracetic acid needs 316 stainless with Aflas. Fitting configuration is not specified in our catalog for this SKU, so confirm outlet size, bulkhead locations, and whether any fittings are included before ordering. Cross-check your exact concentration and temperature against the OEM chart and our Chemical Compatibility Database before you spec the plumbing, and see the technical drawing on this page for the cone profile and overall geometry.
This 2500 gallon Norwesco HDPE cone bottom tank ships LTL freight from the Norwesco plant in Sheldon, IA, quoted live to your ZIP. Get your LTL freight quote with the Freight Cost Estimator, or call 866-418-1777 to confirm fitting packages, stand sizing, and lead time before you order.
