The Norwesco 2500 Gallon 30 Degree HDPE Cone Bottom Tank is a 96-inch diameter, 105-inch tall blue tank built for full-drain chemical and process service where you cannot leave product sitting in the bottom. The 30-degree cone discharges sludge, slurry, and settling chemicals far more completely than a flat or shallow-cone floor, and the molded High Density Linear Polyethylene shell carries a 1.9 specific gravity rating, which is what makes this cone bottom tank a real chemical workhorse rather than a water tank.
Does it work for your job?
Capacity is 2500 gallons. The 96.0 x 96.0 inch figure is the stand and cradle envelope; plan a support pad at least that wide, and remember the 105-inch height is the overall dimension including the cone, so size both your support ring and your headroom from those numbers. A 30-degree cone tank always rides in a properly rated stand, never on its point. At full water it holds roughly 20,850 lb, and the 1.9 SG rating allows a maximum rated contents weight near 39,615 lb - confirm your stand, pad, and slab are engineered for that loaded figure before you fill it, because the cone concentrates the entire load on the support ring. For dimensioned outlet, manway, and cone-detail callouts, see the technical drawing on this page. If you are still choosing between cone angles or capacities, our Tank Sizing Calculator and Tank Sizing Guide walk through drain rate and headroom, and the Norwesco cone bottom tank buyer's guide on 15 vs 30 vs 45 degree selection explains why the steeper 30-degree cone is the right call for heavier, settling chemicals. See also the 2500 gallon 30 degree cone bottom tank complete buyer's guide and, if you want the poly-stand version, the 2500 gallon 30 degree cone bottom tank with poly stand guide.
Chemical compatibility
This tank is molded in HDLPE rated to 1.9 specific gravity. HDLPE and XLPE behave differently in chemical service, so confirm HDLPE versus XLPE for your chemical before committing this body to anything aggressive. The fitting and gasket materials below are matched to the OEM chemical-resistance chart, which is concentration- and temperature-specific - always verify your exact concentration and operating temperature against that chart. Three gasket families appear and they are not interchangeable: Viton for the oxidizers and strong acids (sulfuric, hydrochloric, phosphoric, hydrofluoric, hydrofluosilicic, hydrogen peroxide, sodium hypochlorite), Aflas for peracetic acid only, and EPDM for the salts, bases, and glycols. Four duties also require 316SS or other non-PVC fittings - do not price PVC for these: DEF, peracetic acid, propylene glycol, and zinc orthophosphate.
| Chemical | Max Conc. | Fitting | Gasket |
|---|---|---|---|
| Sulfuric Acid | 98% | CPVC | Viton |
| Hydrochloric Acid | 37% | PVC | Viton |
| Phosphoric Acid | 85% | PVC | Viton |
| Hydrofluoric Acid | 48% | PP/PVC | Viton |
| Hydrofluosilicic Acid | 26% | PP/PVC | Viton |
| Hydrogen Peroxide | 50% | PVC | Viton |
| Sodium Hypochlorite | <16.5% | PVC | Viton |
| Peracetic Acid | 30% | 316SS | Aflas |
| Acetic Acid | 60% | PP/PVC | EPDM |
| Ferric Chloride | 50% | PVC | EPDM |
| Ferric Sulfate | 60% | PVC | EPDM |
| Ferrous Sulfate | 20% | PVC | EPDM |
| Aluminum Sulfate | 50% | PVC | EPDM |
| Calcium Chloride | 40% | PVC | EPDM |
| Magnesium Chloride | 30% | PVC | EPDM |
| Sodium Carbonate | 30% | PVC | EPDM |
| Potassium Carbonate | 50% | PVC | EPDM |
| Potassium Hydroxide | Saturated | PVC | EPDM |
| Sodium Thiosulfate | 40% | PVC | EPDM |
| Sodium Bisulfate | - | PVC/PP | EPDM |
| Sodium Bisulfite | - | PVC/PP | EPDM |
| Polyaluminum Chloride | - | PVC | EPDM |
| DEF | 32.5% | 316SS | EPDM |
| Urea Solution | 50% | PP/PVC | EPDM |
| Ethylene Glycol | 100% | PVC | EPDM |
| Propylene Glycol | - | PP/316SS | EPDM |
| Zinc Orthophosphate | - | PP/316SS | EPDM |
| Ozonated Water (page pending) | up to 10 PPM | PVC | EPDM |
Pull the full concentration-specific detail in our Chemical Compatibility Database before you finalize fittings and gaskets.
The mistake to avoid
The costliest error on a cone-bottom chemical tank is matching the chemical to the resin but not to the fittings and gaskets. The 1.9 SG HDLPE shell may be fine while the wrong gasket fails first - run Viton on sulfuric, hydrochloric, phosphoric, and hypochlorite duty, Aflas on peracetic acid, and EPDM on the salts and glycols, exactly as the chart specifies. Watch the four 316SS duties too: pricing PVC fittings for DEF, peracetic acid, propylene glycol, or zinc orthophosphate will spec the job wrong on cost and lead time. Second, do not assume the SG rating is open-ended: 1.9 is the ceiling, so verify your chemical's specific gravity at temperature stays at or below it. Third, the cone is not self-supporting - it must sit in a properly rated stand sized to the loaded weight.
This cone bottom tank ships LTL freight, quoted live to your ZIP from the nearest Norwesco plant among Griffin, GA, Hanford, CA, and Lancaster, OH. Get an exact number with our Freight Cost Estimator, or call 866-418-1777 to confirm fit, fittings, and gasket selection before you order. Listed price is before freight.
