The Norwesco 85 Gallon Full Drain Cone Bottom Inductor Tank (SKU N-44218) is a white polyethylene cone bottom tank built for batching, mixing, and dosing duty where the vessel has to empty completely. At 49 inches tall on a 30 x 30 inch footprint, it holds 85 gallons and carries a 1.5 specific gravity rating, so the full-drain cone discharges product cleanly instead of leaving a heel trapped in a flat floor. The cone geometry is what makes this an inductor: powders and concentrates wash down to a single low outlet rather than bridging across a flat bottom.
Will it work for your application?
Sizing comes first. Filled with water this tank carries about 709 pounds; at its maximum rated contents weight it carries 1,063 pounds, which is the ceiling the 1.5 SG rating buys you. Size your stand or support ring to that 1,063 pound figure, not the water number, because anything denser than water eats into the margin fast. Note the proportions: 49 inches tall on a 30 x 30 inch base is a tall, narrow vessel, so a full-drain cone tank of these dimensions must sit in a matching support stand or ring and cannot free-stand on its cone. Run your batch density through the Tank Sizing Calculator and the Tank Sizing Guide before you commit. Outlet and fitting sizes are not specified in our catalog data for this unit, so confirm the actual outlet and fitting configuration against the technical drawing on this page or by calling 866-418-1777 before sizing valves or plumbing. Because a cone bottom drains under gravity, outlet sizing decides whether the cone empties or plugs on higher-solids product, which is covered in our guide on cone-bottom outlet sizing for high-solids vs low-solids service. For laying out vent, fill, level, and drain penetrations without creating cross-contamination, see our tank top fitting placement strategy. If you are weighing this against the next size up, the 110 gallon inductor buyer's guide and the 85 gallon inductor buyer's guide walk through the tradeoffs.
Chemical compatibility
This is a 1.5 specific gravity polyethylene tank. The resin is recorded as HDLPE with an open question, so confirm whether your unit is high-density linear polyethylene or cross-linked polyethylene before putting any chemical in it, since the two resins behave differently against aggressive media. At the 1.5 SG rating, this tank suits the following chemicals when paired with the right fitting and gasket materials, always checking the concentration-specific and temperature-specific OEM chemical-resistance chart: 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, EPDM); 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), where 10 PPM is a hard ceiling above which our compatibility data does not cover this tank.
The mistake to avoid
The common error is assuming a 1.5 SG cone bottom handles everything. It does not. Several heavier or more aggressive chemicals need a higher 1.9 SG tank, not 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. If your chemical is on that 1.9 SG list, this 85-gallon 1.5 SG tank is the wrong tank for the job, so call 866-418-1777 and we will quote the 1.9 SG equivalent. Gasket material matters as much as SG: several of these call for Viton rather than EPDM, and the most demanding case, Peracetic Acid, requires 316SS fittings with an Aflas gasket, so do not substitute EPDM or PVC there. Match resin, SG rating, fitting material, and gasket material to your exact chemical and concentration using the full Chemical Compatibility Database.
This tank ships LTL freight, quoted live to your ZIP code, from the nearest of the following plants: Fairfield, TX; Griffin, GA; Hanford, CA; Owego, NY; Sheldon, IA; and Washington Court House, OH. Run your address through the Freight Cost Estimator or call 866-418-1777 to lock in delivery. Have your chemical, concentration, and target SG ready and we will confirm the right tank, fittings, and gaskets before you order.
3 Year Warranty
