The Enduraplas 1550 Gallon Green Cone Bottom Tank (SKU THC01550G) is built for full-drain bulk chemical service where you cannot leave product sitting in the flat bottom of a closed-top tank. Molded in green polyethylene, it carries a 1.9 specific gravity rating, meaning it is engineered to hold dense liquids. It stands 87 inches tall on an 85 x 85 inch footprint and holds up to 1,550 gallons. The sloped cone bottom is designed to drain contents toward the outlet by gravity, which is why operators searching for a cone bottom tank, cone tank or a 1550-gallon cone choose this geometry for chemicals that settle, batch processes that need a clean changeover, and bulk DEF or urea-solution storage where bottom residue is a problem.
Will it work for your application?
Start with weight, because a cone bottom tank does not stand on its own; it needs a matching stand to carry the load. Filled with water this tank weighs about 12,927 pounds, and at its full 1.9 SG rating the contents alone can reach 24,561 pounds. Size your stand and foundation to the heavier rated figure if you are storing a dense chemical, not the water number. Confirm stand fit against the Cone Bottom Tank Stand Compatibility Matrix for Norwesco, Snyder and Enduraplas before you order, and use the Tank Sizing Calculator and Tank Sizing Guide to confirm 1,550 gallons matches your batch and turnover. One clearance note specific to cone tanks: because this tank sits on a stand, your in-service overall height is the 87-inch tank plus the stand height, well above 87 inches alone. Check door and ceiling clearance against tank-plus-stand, not the tank dimension by itself.
Chemical compatibility
This tank is polyethylene rated to 1.9 specific gravity, which is the maximum density it is built to hold. If your chemical is heavier than 1.9 specific gravity you have exceeded this tank's rating; call us before ordering. Its resin is currently recorded as unconfirmed, so before any chemical service confirm with us or the OEM whether you need high-density linear (HDLPE) or cross-linked (XLPE) polyethylene; for several aggressive chemicals that distinction drives long-term resistance and you should not commit until it is settled. The chemicals below are matched to this tank and its SG rating per the OEM chemical-resistance chart, which is always concentration- and temperature-specific; verify your exact concentration and operating temperature before you order. The fitting and gasket materials listed are what the chart calls for at the stated concentration:
- Acetic Acid (60%) - PP/PVC fittings, EPDM gaskets
- Aluminum Sulfate (50%) - PVC fittings, EPDM gaskets
- Calcium Chloride (40%) - PVC fittings, EPDM gaskets
- DEF (32.5%) - 316SS fittings, EPDM gaskets
- Ethylene Glycol (100%) - PVC fittings, EPDM gaskets
- Ferric Chloride (50%) - PVC fittings, EPDM gaskets
- Ferric Sulfate (60%) - PVC fittings, EPDM gaskets
- Ferrous Sulfate (20%) - PVC fittings, EPDM gaskets
- Hydrochloric Acid (37%) - PVC fittings, Viton gaskets
- Hydrofluoric Acid (48%) - PP/PVC fittings, Viton gaskets
- Hydrofluosilicic Acid (26%) - PP/PVC fittings, Viton gaskets
- Hydrogen Peroxide (50%) - PVC fittings, Viton gaskets
- Magnesium Chloride (30%) - PVC fittings, EPDM gaskets
- Peracetic Acid (30%) - 316SS fittings, Aflas gaskets
- Phosphoric Acid (85%) - PVC fittings, Viton gaskets
- Polyaluminum Chloride - PVC fittings, EPDM gaskets
- Potassium Carbonate (50%) - PVC fittings, EPDM gaskets
- Potassium Hydroxide (saturated) - PVC fittings, EPDM gaskets
- Propylene Glycol - PP/316SS fittings, EPDM gaskets
- Sodium Bisulfate - PVC/PP fittings, EPDM gaskets
- Sodium Bisulfite - PVC/PP fittings, EPDM gaskets
- Sodium Carbonate (30%) - PVC fittings, EPDM gaskets
- Sodium Hypochlorite (<16.5%) - PVC fittings, Viton gaskets
- Sodium Thiosulfate (40%) - PVC fittings, EPDM gaskets
- Sulfuric Acid (98%) - CPVC fittings, Viton gaskets
- Urea Solution (50%) - PP/PVC fittings, EPDM gaskets
- Zinc Orthophosphate - PP/316SS fittings, EPDM gaskets
- Ozonated Water (up to 10 PPM) - PVC fittings, EPDM gaskets
Scan the elastomer split before you spec hardware. The Viton-gasket chemicals - hydrochloric acid, hydrofluoric acid, hydrofluosilicic acid, hydrogen peroxide, phosphoric acid, sodium hypochlorite and sulfuric acid - are the aggressive acids and oxidizers, and peracetic acid at 30% is the lone Aflas case; everything else runs EPDM. Watch the fitting material too: most of the list takes PVC or PP, but DEF at 32.5% and peracetic acid call for 316 stainless. An EPDM gasket on a Viton-rated chemical is the most common field failure, so match fitting and gasket exactly. See the full Chemical Compatibility Database for concentrations and temperatures beyond those listed here.
The mistake to avoid
The expensive error on a 1.9 SG cone tank is matching the stand and fittings to water weight instead of chemical weight, and skipping the resin confirmation. A dense chemical at the rated 24,561-pound contents weight will overload a stand sized for the 12,927-pound water figure. Get the top-fitting layout right the first time using the tank top fitting placement strategy guide, plan your level instrumentation with the tank level gauge selection guide, and label the tank correctly with the tank label and signage compliance guide before it goes into service.
This tank ships LTL freight from the Enduraplas plant in Neche, ND, quoted live to your ZIP. Get a number in seconds with the Freight Cost Estimator, or call 866-418-1777 and we will work out the right cone bottom tank, stand and fitting package for your chemical, concentration and SG rating.
