The Norwesco 3000 Gallon 30 Degree Cone Bottom Tank (N-40170) is a 1.5 specific-gravity polyethylene tank built for batching, mixing, and full-drain dosing of moderately heavy liquids. It runs approximately 95 to 96 inches in diameter by 123 inches tall on a 96 x 96 inch footprint (the product label rounds the diameter to 95 inches; the structured spec is 96 inches), and the 30-degree cone bottom lets contents gravity-drain cleanly so you are not left fighting settled solids or stagnant residue in the bottom. This is a white cone tank that needs a support stand or steel structure rated for the fully loaded weight, because the cone shape means the tank cannot stand on its own.
Will it work for your job?
Start with weight, because on a 3000-gallon cone this is where installs go wrong. Filled with plain water the contents weigh about 25,020 lbs, and at the 1.5 SG rating the tank is engineered to carry up to roughly 37,530 lbs of liquid. Your stand, ring, and slab all have to be sized for that loaded number, not the empty shell. Figure your actual fill weight as gallons x 8.34 x your liquid's specific gravity before you size the structure. The 1.5 SG rating is the hard line: the wall is built to support a liquid up to 1.5 times the weight of water, and a denser liquid makes this the wrong tank. Run your numbers through the Tank Sizing Calculator and the Tank Sizing Guide before you order, and reference the technical drawing on this page for fitting locations and cone geometry.
Chemical compatibility
This is a polyethylene cone tank rated to 1.5 specific gravity. The resin grade in our source data is unconfirmed, so confirm HDLPE versus XLPE with us at 866-418-1777 before you commit it to chemical service. Within the 1.5 SG rating, this tank suits the following, all per the OEM chemical-resistance chart at the listed concentration and temperature: Acetic Acid at 60% (PP/PVC fittings, EPDM gaskets); Aluminum Sulfate at 50% (PVC, EPDM); Calcium Chloride at 40% (PVC, EPDM); DEF at 32.5% (316SS fittings, EPDM gaskets - DEF rejects most metals, so 316 stainless is the one you spec here, not brass or 304); Ferrous Sulfate at 20% (PVC, EPDM); Magnesium Chloride at 30% (PVC, EPDM); Sodium Carbonate at 30% (PVC, EPDM); Urea Solution at 50% (PP/PVC, EPDM); and Ozonated Water up to 10 PPM (PVC, EPDM) - call 866-418-1777 for ozonated-water specifics. Across the 1.5 SG list every gasket is EPDM; match your fitting and gasket materials exactly as listed, because the gasket is the part people forget and the wrong elastomer leaks long before the tank does.
Chemicals that need a heavier 1.9 SG tank
Several common chemicals are too dense or aggressive for this 1.5 SG tank and require a higher-SG (1.9) cone instead - do not put them in this one. Call 866-418-1777 for the 1.9 SG 3000-gallon cone if your fluid is on this list: Sulfuric Acid (CPVC fittings, Viton gaskets), Hydrochloric Acid (PVC, Viton), Phosphoric Acid (PVC, Viton), Sodium Hypochlorite (PVC, Viton), Hydrogen Peroxide (PVC, Viton), Peracetic Acid (316SS, Aflas), Ferric Chloride (PVC, EPDM), Ferric Sulfate (PVC, EPDM), Ethylene Glycol (PVC, EPDM), Propylene Glycol (PP/316SS, EPDM), Potassium Hydroxide (PVC, EPDM), Potassium Carbonate (PVC, EPDM), Polyaluminum Chloride (PVC, EPDM), Hydrofluoric Acid (PP/PVC, Viton), Hydrofluosilicic Acid (PP/PVC, Viton), Sodium Bisulfate (PVC/PP, EPDM), Sodium Bisulfite (PVC/PP, EPDM), Sodium Thiosulfate (PVC, EPDM), and Zinc Orthophosphate (PP/316SS, EPDM). Note the gasket split: the oxidizers and strong acids on the heavier tank need Viton or, for peracetic acid, Aflas, not the EPDM that covers every 1.5 SG chemical. Always verify your exact concentration and temperature against the OEM chart and our Chemical Compatibility Database before ordering.
Freight and ordering
This Norwesco cone bottom tank ships LTL freight from the St. Bonifacius, Minnesota plant, quoted live to your ZIP code - get your number with the Freight Cost Estimator or call 866-418-1777. For a deeper look at how the cone angle, drain behavior, and stand requirements work, read our 3000 Gallon 30 Degree Cone Bottom Tank buyer's guide and the 15 vs 30 vs 45 degree cone selection guide to confirm 30 degrees is the right drain angle for your material. Questions on fittings, the stand, or chemical fit? Call us at 866-418-1777 before you buy.
3 Year Warranty
