The Norwesco 1600 Gallon 30 Degree Cone Bottom Tank (SKU N-40814) is a closed-top HDLPE tank that drops into a matching black poly stand, so the full 30-degree cone drains toward a single low point without a separate steel frame. It stands 96 inches tall on an 89-inch diameter footprint, empties completely for cleaning between batches, and ships from Norwesco with a 16-inch lid and no pre-installed fitting, so you spec the outlet and bulkhead to your own plumbing. Empty tank weight is 524 pounds. One note before chemical service: the resin is recorded as HDLPE and should be confirmed as HDLPE versus XLPE with the manufacturer, since the two resins behave differently against oxidizers and acids.
Will it hold what you're running?
This tank carries a 1.9 specific gravity rating, which is the number that matters most on a cone-bottom chemical tank - and 1.9 is the ceiling of Norwesco's cone-bottom line, so there is no heavier shell to step up to. Filled with water the contents weigh about 13,344 pounds; at the full 1.9 rating the tank and stand are engineered for up to roughly 25,354 pounds of contents. Max service temperature is 120 F (48 C) - hot process fluids derate the wall, so keep continuous temperatures below that line. The tank is FDA approved. The 16-inch lid is your fill and inspection access; size your vent to the pump-in or gravity-out rate you'll actually run, and confirm that spec alongside the outlet since neither ships pre-set. Use the Tank Sizing Calculator and Tank Sizing Guide to confirm the 1600-gallon working volume matches your batch and refill cycle.
Chemical compatibility
This tank is molded from polyethylene rated to 1.9 specific gravity, with the resin recorded as HDLPE - confirm HDLPE versus XLPE before committing it to chemical service. Compatibility below is drawn from the Snyder Industries OEM chemical-resistance chart and is concentration- and temperature-specific; verify your exact chemical, concentration, temperature, and the fitting and gasket materials before ordering. Because the 1.9 rating is the top of the line, every fluid on the chart is covered with no need to size up the shell - including the density-heavy oxidizers and strong acids like ferric chloride (50%, PVC fittings, EPDM gaskets), hydrofluoric acid (48%, PP or PVC, Viton), phosphoric acid (85%, PVC, Viton), and sulfuric acid (98%, CPVC fittings, Viton gaskets).
Other fluids the chart supports on this tank, with the hardware it calls for, include ethylene glycol (100%, PVC, EPDM), ferric sulfate (60%, PVC, EPDM), hydrochloric acid (37%, PVC, Viton), hydrofluosilicic acid (26%, PP or PVC, Viton), hydrogen peroxide (50%, PVC, Viton), peracetic acid (30%, 316SS fittings, Aflas gaskets), polyaluminum chloride (PVC, EPDM), potassium carbonate (50%, PVC, EPDM), potassium hydroxide (saturated, PVC, EPDM), propylene glycol (PP or 316SS, EPDM), sodium bisulfate (PVC/PP, EPDM), sodium bisulfite (PVC/PP, EPDM), sodium hypochlorite (under 16.5%, PVC, Viton), sodium thiosulfate (40%, PVC, EPDM), zinc orthophosphate (PP or 316SS, EPDM), and ozonated water (up to 10 PPM, PVC, EPDM). Lower-density fluids the chart clears against a 1.5-rated tank - so this 1.9 tank covers them with headroom - include acetic acid (60%, PP or PVC, EPDM), aluminum sulfate (50%, PVC, EPDM), calcium chloride (40%, PVC, EPDM), ferrous sulfate (20%, PVC, EPDM), magnesium chloride (30%, PVC, EPDM), and sodium carbonate (30%, PVC, EPDM). Lower-SG service fluids the chart pairs with specific hardware include DEF (32.5%, 316SS, EPDM) and urea solution (50%, PP or PVC, EPDM). Full concentration and temperature detail lives in our Chemical Compatibility Database.
The mistake to avoid
The most expensive error on a cone-bottom chem tank is matching the shell but not the fitting and gasket. This tank ships with an unported cone - the 30-degree cone drains to a single low point, but you drill and bulkhead the bottom outlet yourself, and full drain only happens once that outlet is installed. Confirm the poly stand height clears your valve and hose underneath before you plumb it. Then match the elastomer to the fluid: EPDM works for the glycols, carbonates, and chlorides, but the aggressive oxidizers and strong acids above (hydrochloric, sulfuric, hydrogen peroxide, sodium hypochlorite) require Viton or Aflas and a PVC, CPVC, or 316SS fitting. Pick the wrong elastomer and the tank holds fine while the bulkhead fails. Confirm resin (HDLPE vs XLPE), concentration, and temperature against the OEM chart, then spec the outlet to match.
This tank ships LTL freight from the nearest Norwesco plant - Hanford, CA; Tooele, UT; or Washington Court House, OH - and the estimator ships from whichever plant is closest to you, which matters on a 524 lb, 89-inch load where lane distance drives the cost. Get a number in seconds with our Freight Cost Estimator, read the 1600 Gallon 30 Degree Cone Bottom Tank buyer's guide, or call 866-418-1777 to confirm fitting selection and freight before you order.
