The Norwesco 1050 Gallon 20 Degree Cone Bottom Tank (SKU N-40356) is a closed-top polyethylene cone bottom tank built for processes that need full drainage and complete settled-solids removal. It stands 86 inches tall on a 73 x 73 inch footprint, and the 20-degree cone discharges contents under gravity so you are not chasing residue out of a flat floor. With a 1.5 specific gravity rating, it holds liquids up to 1.5 times the weight of water, which is what makes it a working chemical-service vessel rather than a plain water tank.
Will it work for your application
Capacity is 1050 gallons in white polyethylene. Size your support structure around the loaded weight, not the empty shell: filled with water this tank carries about 8,757 lbs, and at its full 1.5 SG rating the contents alone can reach roughly 13,136 lbs. A cone bottom tank always rides in a steel or poly stand so the cone hangs free and drains completely, so your stand must be rated for the 13,136 lb maximum contents weight plus the tank's own shell, and the 73 x 73 inch footprint is the slab dimension to design your pad around. To match gallons to your batch volume and headspace, run the Tank Sizing Calculator or read the Tank Sizing Guide. The technical drawing on this page shows the exact dimensions and fitting layout for this model.
Chemical compatibility
This tank is polyethylene rated to 1.5 specific gravity; the resin is recorded as HDLPE but is not yet confirmed, so verify HDLPE versus XLPE construction with us before putting it into chemical service. At the 1.5 SG rating, it handles Acetic Acid (60%), Aluminum Sulfate (50%), Calcium Chloride (40%), DEF (32.5%), Ferrous Sulfate (20%), Magnesium Chloride (30%), Sodium Carbonate (30%), Urea Solution (50%), and Ozonated Water (up to 10 PPM). Match fittings and gaskets to the chemical: PP or PVC fittings with EPDM gaskets for Acetic Acid and Urea Solution; PVC with EPDM for Aluminum Sulfate, Calcium Chloride, Ferrous Sulfate, Magnesium Chloride, Sodium Carbonate, and Ozonated Water. Note that DEF is the only chemical on this list that requires 316 stainless steel fittings (with EPDM gaskets) rather than PVC or PP, so budget for that if DEF is your service. These selections are concentration- and temperature-specific, so verify against the OEM chemical-resistance chart for your exact conditions and our Chemical Compatibility Database.
Chemicals that need a higher-SG tank
Several dense or aggressive chemicals exceed the 1.5 SG rating and require a 1.9 specific gravity tank instead. If you are storing 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, or Zinc Orthophosphate, talk to us about the matching 1.9 SG cone bottom tank and the correct fitting and gasket package. The gasket material is not always standard EPDM: the Viton group includes Hydrochloric, Hydrofluoric, Hydrofluosilicic, Hydrogen Peroxide, Phosphoric, Sodium Hypochlorite, and Sulfuric Acid; Peracetic Acid calls for Aflas gaskets on 316 stainless fittings; and Sulfuric Acid specifically needs CPVC fittings. Putting any of these in a 1.5 SG tank is the most common and most expensive mistake on a cone bottom build.
Fittings and layout
Because this is a closed-top cone bottom tank, where you place the vent, fill, level, and drain connections matters for clean operation. Our tank top fitting placement strategy guide walks through vent, fill, level, drain, and vapor-recovery layout, and the Norwesco cone bottom tank buyer's guide compares cone angles if you are still deciding between this 20-degree model and steeper options. For a full walkthrough of this exact size, see our 1050 gallon cone bottom complete buyer's guide and the version paired with a poly stand.
This cone bottom tank ships LTL freight, quoted live to your ZIP, and routes from whichever of these Norwesco plants is closest: Griffin, GA; Hanford, CA; Lancaster, OH; St. Bonifacius, MN; or Tooele, UT. Get a freight quote to your exact ZIP with our Freight Cost Estimator, or call 866-418-1777 and we will route it from the closest plant and confirm the right fitting and gasket package for your chemical. Listed price is before freight.
3 Year Warranty
