The Snyder Industries 6500 Gallon HDPE Vertical Chemical Storage Tank is built from high density linear polyethylene (HDLPE) with a 1.5 specific gravity rating, sized for bulk chemical and high-volume water-treatment service. It stands 153 inches tall on a 120 x 120 inch footprint and holds 6,500 gallons. The black color carries heavier carbon-black UV pigment loading, which matters for outdoor installs - see our guide on HDPE tank color pigment chemistry if you are weighing black against a natural or white tank. This is a Snyder vertical storage tank for operations that need real capacity in a single vessel.
Will it work for your application?
The 1.5 specific gravity rating is the number to plan around. Filled with water this tank carries 54,210 pounds of contents; loaded to its maximum rated 1.5 SG it carries 81,315 pounds. Confirm your foundation and pad are engineered for that load on the 120 x 120 inch footprint before you set it. Use the Tank Sizing Calculator and the Tank Sizing Guide to match fill height and contents weight to your slab and process volume. Fitting and gasket materials are selected per the chemical, as shown in the compatibility table below - PP/PVC with EPDM for most, 316SS for DEF - so the configuration is driven by what you store, not left blank. Review our level gauge selection guide to instrument it correctly, and for secondary containment on this size class see our Snyder Captor Plus 110% containment vs UL-142 comparison.
Chemical compatibility
This is an HDLPE tank rated to 1.5 specific gravity. The resin is recorded as HDLPE (linear); if your service is borderline, confirm HDLPE versus XLPE construction with us before committing the tank, since cross-linked polyethylene resists some chemicals differently. At the 1.5 SG rating this tank is compatible with Acetic Acid (60%, PP or PVC fittings, EPDM gaskets), Aluminum Sulfate (50%, PVC, EPDM), Calcium Chloride (40%, PVC, EPDM), DEF (32.5%, 316SS fittings, EPDM), Ferrous Sulfate (20%, PVC, EPDM), Magnesium Chloride (30%, PVC, EPDM), Sodium Carbonate (30%, PVC, EPDM), Urea Solution (50%, PP or PVC, EPDM), and Ozonated Water (up to 10 PPM, PVC, EPDM). Note that DEF is the one chemical here that calls for 316 stainless fittings rather than the PVC default - do not default-spec PVC on a DEF install. Always verify against the OEM chemical-resistance chart for your exact concentration and temperature, since resistance is concentration- and temperature-specific. The full Chemical Compatibility Database covers every chemical we track.
Chemicals that need a higher-SG tank
Some chemicals exceed what a 1.5 SG tank should hold and require a 1.9 specific gravity tank instead - this 1.5 SG tank is the wrong tank for them. If you are storing Ethylene Glycol, Ferric Chloride, Ferric Sulfate, Hydrochloric Acid, Hydrofluoric Acid, Hydrofluosilicic Acid, Hydrogen Peroxide, Peracetic Acid, Phosphoric Acid, Polyaluminum Chloride, Potassium Carbonate, Potassium Hydroxide, Propylene Glycol, Sodium Bisulfate, Sodium Bisulfite, Sodium Hypochlorite, Sodium Thiosulfate, Sulfuric Acid, or Zinc Orthophosphate, step up to the 1.9 SG equivalent and match the fitting and gasket materials shown on each chemical page. Several of these need more than EPDM: sulfuric acid uses CPVC with Viton; sodium hypochlorite, hydrochloric, hydrofluoric, hydrofluosilicic, phosphoric, and hydrogen peroxide call for Viton; and peracetic acid is more aggressive still, requiring an Aflas gasket with 316 stainless fittings rather than Viton. Call us at 866-418-1777 before ordering if your chemical falls in this group and we will spec the correct 1.9 SG tank for it.
Freight and getting it to you
This tank ships LTL freight, quoted live to your ZIP from the nearer Snyder plant - Lincoln, NE or Philippi, WV. Because freight is the variable on a tank this size, get a real number before you buy with our Freight Cost Estimator, or call 866-418-1777 and we will quote it and confirm HDLPE versus XLPE, fittings, and SG rating for your exact chemical. Reference the technical drawing on this page for fitting locations and dimensions, and check our tank label and signage compliance guide for NFPA 704 and GHS placarding once it is installed.
