3000 Gallon 30 Degree Plastic Cone Bottom Tank in White

The 3000 Gallon 30 Degree Plastic Cone Bottom Tank from Snyder Industries is a 3000-gallon white polyethylene cone bottom tank built for full-drain chemical and process service. It stands 144 inches tall on a 90 x 90 inch footprint, and its 30-degree cone discharges contents completely without manual scraping or residual heel - which is exactly why processors choose a cone bottom tank over a flat-bottom vertical. This unit carries a 1.5 specific gravity rating, the spec that governs which chemicals it can safely hold. If you are weighing the discharge angle, the cone bottom tank buyer's guide on 15 vs 30 vs 45 degree selection explains how the 30-degree cone trades drain time against stand height.

Will it work for your application?

The tank is molded from polyethylene and rated to a 1.5 specific gravity, meaning it is built to hold contents up to 1.5 times the weight of water. Filled with water it carries roughly 25,020 lb; at its maximum rated contents weight it carries up to 37,530 lb - design your cone stand, legs, and slab for that heavier 1.5-SG figure, since the load concentrates on the cone apex and stand ring rather than spreading across a flat slab. Factory fittings on this unit include a flange, an 18 inch PE threaded/vented opening, and a manway with 15 inch access for entry and cleaning. That generous 15 inch manway access makes interior inspection and cleaning practical between batches, and the 18 inch PE threaded/vented opening is your anti-vacuum vent - cone tanks drain fast, and without that vent the tank can pull a vacuum during drain-down. Confirm your fill, vent, and discharge plumbing against the fitting layout shown on the technical drawing on this page before you order. If you are sizing a system, the Tank Sizing Calculator and Tank Sizing Guide help match capacity to your batch volume.

Chemical compatibility

This is a polyethylene tank with a 1.5 specific gravity rating. The exact resin grade is not confirmed in our records - confirm HDLPE versus XLPE with us before placing this tank into aggressive chemical service. At the 1.5 SG rating, the following chemicals are within range: Acetic Acid at 60%, Aluminum Sulfate at 50%, Calcium Chloride at 40%, DEF at 32.5%, Ferrous Sulfate at 20%, Magnesium Chloride at 30%, Sodium Carbonate at 30%, Urea Solution at 50%, and Ozonated Water up to 10 PPM. A useful simplification from the data: all nine of these run on EPDM gaskets - the fitting material is what changes, PVC for most, PP/PVC for the acids and urea, and 316SS for DEF. DEF is the exception worth noting; it needs 316SS fittings, not PVC. Always confirm against the OEM chemical-resistance chart at your specific concentration and service temperature, since compatibility shifts with both.

These chemicals need a higher-SG tank

Several common process chemicals exceed what a 1.5 SG tank should hold and require a 1.9 specific gravity tank instead - do not run them in this unit. A 1.9-SG fluid here is a double problem: it is both outside the chemical rating and a structural overload past the 37,530 lb the cone and stand are designed to carry. Those higher-SG chemicals include Ethylene Glycol, Ferric Chloride, Ferric Sulfate, Hydrochloric Acid (Viton gaskets), Hydrofluoric Acid, Hydrofluosilicic Acid, Hydrogen Peroxide, Peracetic Acid (316SS, Aflas), Phosphoric Acid, Polyaluminum Chloride, Potassium Carbonate, Potassium Hydroxide, Propylene Glycol, Sodium Bisulfate, Sodium Bisulfite, Sodium Hypochlorite (Viton), Sodium Thiosulfate, Sulfuric Acid (CPVC, Viton), and Zinc Orthophosphate. The biggest mistake on a chemical cone tank is matching the chemical to the geometry while ignoring the SG rating; the full Chemical Compatibility Database lets you check each one.

This cone bottom tank ships LTL freight from Snyder Industries in Lincoln, Nebraska, with the final cost quoted live to your ZIP code - use the Freight Cost Estimator for an instant rate or call 866-418-1777 to lock in your order. For more on how cone angle affects drain time and stand height, see our 3000 gallon 15 degree cone bottom tank guide.