The 500 Gallon 45 Degree Cone Bottom Tank (Norwesco, SKU N-41489) is built for batch mixing, settling, and full-drain dispensing where you need solids or product to clear the tank completely. It holds 500 gallons in a white polyethylene body that stands 82 inches tall on a 52-by-52-inch footprint, and the 45-degree cone is the steepest standard angle in the Norwesco 15/30/45 cone family, so it self-drains more completely than a 15- or 30-degree cone. This is a cone bottom tank rated to 1.5 specific gravity, sized for chemistries heavier than water as long as you stay inside that rating.
Will it work for your job?
Start with weight, not just volume. Filled with water (SG 1.0), this tank carries roughly 4,170 lbs of contents; at its full 1.5 SG rating it holds up to about 6,255 lbs of product. Those figures are contents only - your stand and floor must carry the contents plus the empty tank weight (see the spec table and the technical drawing on this page). A cone bottom tank cannot sit on its own bottom: it requires a rated cone-bottom stand and should be anchored, not free-standing. Because it drains by gravity, plan your discharge plumbing and valve height around the 82-inch overall height and the cone angle. Use the Tank Sizing Calculator and the Tank Sizing Guide to match capacity and working volume to your process.
Chemical compatibility
This is a polyethylene tank rated to 1.5 specific gravity. The resin should be confirmed as HDLPE versus XLPE before chemical service, since resin choice changes what the tank will tolerate - confirm your exact chemical and resin with us at 866-418-1777. Within the 1.5 SG rating, the following are compatible at the noted concentrations, with the recommended fitting and gasket materials: Acetic Acid (60%, PP/PVC fittings, EPDM gaskets); Aluminum Sulfate (50%, PVC, EPDM); Calcium Chloride (40%, PVC, EPDM); DEF (32.5%, 316SS fittings, EPDM - use 316 stainless fittings for DEF, not PVC); Ferrous Sulfate (20%, PVC, EPDM); Magnesium Chloride (30%, PVC, EPDM); Sodium Carbonate (30%, PVC, EPDM); Urea Solution (50%, PP/PVC, EPDM); and Ozonated Water (up to 10 PPM, PVC fittings, EPDM gaskets). With DEF and urea-solution compatibility, this tank suits diesel exhaust fluid (32.5% urea) storage when plumbed with 316 stainless fittings. Always check each chemical against the OEM chemical-resistance chart for your exact concentration and temperature, and browse the full Chemical Compatibility Database.
Chemicals that need a higher-SG tank
Several common chemicals exceed the 1.5 SG rating of this tank and require a 1.9 specific gravity tank instead - do not store them in this one. These include Sulfuric Acid (CPVC, Viton), Hydrochloric Acid (PVC, Viton), Phosphoric Acid (PVC, Viton), Sodium Hypochlorite (PVC, Viton), Hydrogen Peroxide (PVC, Viton), Ferric Chloride (PVC, EPDM), Ferric Sulfate (PVC, EPDM), Ethylene Glycol (PVC, EPDM), Propylene Glycol (PP/316SS, EPDM), Peracetic Acid (316SS, Aflas), Hydrofluoric Acid (PP/PVC, Viton), Hydrofluosilicic Acid (PP/PVC, Viton), Polyaluminum Chloride (PVC, EPDM), Potassium Carbonate (PVC, EPDM), Potassium Hydroxide (PVC, EPDM), Sodium Bisulfate (PVC/PP, EPDM), Sodium Bisulfite (PVC/PP, EPDM), Sodium Thiosulfate (PVC, EPDM), and Zinc Orthophosphate (PP/316SS, EPDM).
This tank ships LTL freight from the Norwesco plant in Burnet, TX, with freight quoted live to your ZIP - get your number with the Freight Cost Estimator or call 866-418-1777. The single most common mistake on a 1.5 SG cone bottom tank is overlooking specific gravity: confirm the resin, match fitting and gasket materials to your chemical, and never put a product that needs a 1.9 SG tank into this one. For deeper selection help, compare cone angles and stands with our 500 Gallon 45 Degree Cone Bottom Tank buyer's guide, the 30 degree variant guide, the 30 degree with poly stand guide, and the Norwesco cone angle selection guide.
3 Year Warranty
