The Snyder Industries 11500 Gallon Heavy Duty Cone Bottom Tank (SKU 5340100N51) is a 1.9 specific-gravity cone bottom tank molded in black High Density Linear Polyethylene for full-drain bulk chemical storage. It stands 215 inches tall on a 142 x 142 inch footprint, and its 1.9 specific gravity rating is the heavy-duty ceiling for poly resin - well above the 1.0 of water - so you are not under-buying capability here. There is no denser-rated poly tier above it. This is a true chemical workhorse, not a water-only vessel.
Will it work for your application?
This is a cone tank sized for serious volume. Filled with water it holds roughly 95,910 lb, and the shell is rated to carry contents up to about 182,229 lb, so you can run dense chemistries near the 1.9 specific gravity ceiling without overloading the wall. Factory fittings shown on the technical drawing include a flange, an 18" PE threaded/vented fitting, a 12" x 13" fitting, and a manway with 15" access - that access port lets you inspect the full-cone drain and clean between batches when you switch service, for example from ferric chloride to sodium hypochlorite. Because the bottom is a full cone, the support stand carries the entire load, and at roughly 182,000 lb fully loaded on a 142"-square stand the pad and foundation rating is usually the gating constraint, not the tank. Our Cone Bottom Tank Stand Compatibility Matrix covers Snyder stand pairing, and the Tank Sizing Calculator and Tank Sizing Guide help you confirm volume against your draw rate. See the technical drawing on this page for exact fitting placement and dimensions.
Chemical compatibility
This tank is HDLPE rated to 1.9 specific gravity, which keeps a wide range of concentrated chemistries inside its envelope. Compatibility is always concentration- and temperature-specific, so verify your exact service against the OEM chemical-resistance chart and our Chemical Compatibility Database before committing. The 1.9 rating supports common bulk chemicals including sulfuric acid at 98% (CPVC fittings, Viton gaskets), hydrochloric acid at 37% (PVC, Viton), phosphoric acid at 85% (PVC, Viton), sodium hypochlorite below 16.5% (PVC, Viton), hydrogen peroxide at 50% (PVC, Viton), ferric chloride at 50% (PVC, EPDM), aluminum sulfate at 50% (PVC, EPDM), hydrofluoric acid at 48% (PP/PVC, Viton), peracetic acid at 30% (316SS, Aflas), potassium hydroxide saturated (PVC, EPDM), DEF at 32.5% (316SS, EPDM), and urea solution at 50% (PP/PVC, EPDM), among others such as acetic acid, calcium chloride, ethylene glycol, ferric sulfate, sodium carbonate, and polyaluminum chloride. Note the fitting and gasket material called out per chemical - matching the wetted hardware to the chemistry matters as much as the resin itself. For ozonated water up to 10 PPM, PVC fittings with EPDM gaskets apply.
The mistake to avoid
The most common error on a high-SG tank like this is matching the resin but mismatching the wetted hardware and gasket. The 1.9 SG rating governs structural load, not chemical attack, so spec each fitting, gasket, and valve to the exact chemical and concentration you are storing. Watch the entries that break from the usual PVC/EPDM pattern: sulfuric acid at 98% needs CPVC with Viton; sodium hypochlorite and hydrogen peroxide call for Viton; peracetic acid needs 316SS with Aflas; and DEF, propylene glycol, and zinc orthophosphate all call for 316SS hardware - do not default a DEF run to a PVC bulkhead fitting. For aggressive oxidizers and acids, pull our level gauge selection guide and the tank labeling and NFPA 704 signage guide so the installed system stays inspection-ready. If your application includes secondary containment, the Snyder Captor 110% containment vs UL-142 SPCC comparison is worth a read.
This tank ships LTL freight from Snyder's plant in Lincoln, NE, quoted live to your ZIP code. Get a freight quote with our Freight Cost Estimator, or call 866-418-1777 to talk through fittings, stand pairing, and chemical service before you order.
