The Snyder Industries 11500 Gallon 30 Degree Cone Bottom Tank (SKU SII-5340100N43) is built for concentrated chemical service that fully drains. Molded in white High Density Linear Polyethylene with a 1.9 specific gravity rating, this cone tank measures 142 in diameter and 214.5 in tall on a 142.0 x 142.0 in footprint. The 30-degree cone keeps solids and slurries moving toward the outlet so batches empty completely instead of leaving sludge behind. If you are sizing the vessel to a batch volume, run the numbers through our Tank Sizing Calculator or read the Tank Sizing Guide before you commit.
Will this cone bottom tank work for your application?
Filled with water this tank carries 95,910 lb, and at its full 1.9 SG rating it is rated to hold up to 182,229 lb of contents. That high SG rating is what lets it handle dense chemicals that would overload a standard 1.5 SG tank. Plan your pad, footing, and anchoring around those loaded weights, not the empty shell. One thing to confirm up front on any cone tank: the 30-degree cone cannot sit on a flat slab, so it requires a separate cone stand (not included) to support the elevated outlet, and the stand legs concentrate that loaded weight onto a small number of footings. From the factory the tank carries a flange, an 18" PE threaded/vented fitting that provides atmospheric venting (relevant when you are storing oxidizers or acids that off-gas), a 12" x 13" fitting, and a manway with 15" access. That 15" manway access governs whether a person or cleaning equipment can enter for inspection and washout, which matters for the chemical duty this tank is built for. Confirm your inlet, outlet, and vent sizes against those fittings and check the technical drawing on this page for exact port locations before you plumb it.
Chemical compatibility
This is an HDLPE tank rated to 1.9 specific gravity, which suits it to a wide band of concentrated chemicals. Compatibility is always concentration- and temperature-specific, so verify your exact chemical, strength, and service temperature against the OEM chemical-resistance chart, and match the fitting and gasket materials below to your fluid. The following are supported on the chart for this resin and SG class:
- 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
Notice that the gasket call-outs change with the chemical: EPDM for the salts and bases, Viton for the strong acids and oxidizers like sulfuric acid and sodium hypochlorite, and Aflas for peracetic acid. Specifying the wrong elastomer is the most common cone-tank mistake, so match each one before you order. Where no concentration is shown above (for example polyaluminum chloride, propylene glycol, sodium bisulfate, sodium bisulfite, and zinc orthophosphate), the OEM chart did not list a strength limit for that chemical, so confirm your exact concentration before service. Use our full Chemical Compatibility Database to double-check anything not listed here.
Freight and ordering
This cone bottom tank ships LTL freight from the Snyder plant in Lincoln, NE, the nearest named source for this SKU, with the rate quoted live to your ZIP. Get a number before you buy with our Freight Cost Estimator, or call 866-418-1777 and we will help you confirm fittings, the cone stand requirement, and delivery to your site. For more on choosing a cone angle, the cone bottom tank buyer's guide walks through 15 vs 30 vs 45 degree selection, and the Snyder Captor Plus containment comparison covers secondary containment if your install needs it.
