The Snyder Industries 550 Gallon Vertical Chemical Storage Tank is a high density linear polyethylene (HDLPE) vertical tank built for bulk chemical service, rated to a 1.9 specific gravity so it carries dense liquids that thinner-walled storage tanks cannot. It stands 75 inches tall on a 48 x 48 inch footprint, and the black resin blocks light to limit algae growth and UV degradation in outdoor or process settings. If you have been searching for a vertical storage tank that handles aggressive chemistries rather than just water, this is that vertical tank.
Will it work for your application?
The 1.9 SG rating is the number that matters here: it means the wall is engineered for liquids weighing up to 1.9 times the weight of water. Filled with plain water the tank carries about 4,587 pounds; loaded to its maximum rated contents at 1.9 SG it is engineered to hold roughly 8,715 pounds. Confirm the specific gravity of your chemical against that 1.9 ceiling before you order, and use the Tank Sizing Calculator and Tank Sizing Guide to match 550 usable gallons to your turnover and refill cadence. Fitting locations and the tank profile are shown on the technical drawing on this page.
Chemical compatibility
This tank is molded in HDLPE and rated to 1.9 specific gravity, which puts it at the top of Snyder's vertical chemical range and makes it a credible choice for dense, aggressive products. One high-volume application it serves directly is bulk diesel exhaust fluid (DEF): the 32.5% urea solution sits well inside the 1.9 SG ceiling, and a black-resin 550 makes a clean DEF storage and dispensing tank. Compatibility always depends on concentration and temperature, so verify your exact chemistry against the OEM chemical-resistance chart before committing the tank to service. The chemicals below are confirmed compatible at the listed concentrations, with the fitting and gasket materials that pair with each. Match your fittings and gaskets to the chemical you are storing - the wrong elastomer fails long before the polyethylene does.
- 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 (under 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
Watch the exceptions to the EPDM default: sodium hypochlorite, hydrogen peroxide, and phosphoric and sulfuric acids need Viton, peracetic acid is the only chemical here that requires Aflas, and DEF and peracetic acid are the two that call for 316 stainless fittings rather than PVC. Browse the full Chemical Compatibility Database to cross-check your chemistry before you specify fittings.
The mistake to avoid
The most common error on a chemical tank this size is treating it like a water tank. Sizing it on water weight understates your load - at 1.9 SG a full tank approaches 8,715 pounds, so foundation and tie-down design must reflect the rated contents, not the 4,587-pound water figure. Equally important, pick the fitting and gasket materials from the chart above for your specific chemical: default to PVC and EPDM and you will under-spec DEF and peracetic acid, which both need 316 stainless fittings, and peracetic acid alone needs an Aflas gasket. And where the resin is a high density linear polyethylene with an SG ceiling of 1.9, do not assume it covers a denser product. Plan your instrumentation early too - see our guide on level gauge selection for chemical service and the tank labeling and signage compliance rules before the tank goes into service.
This tank ships LTL freight, quoted live to your ZIP from the nearest of three Snyder plants - Lincoln, NE; Marked Tree, AR; or Philippi, WV - which span the Midwest, Mid-South, and Mid-Atlantic so most destinations route from a closer origin than a single-plant supplier can offer. It ships empty, but plan receiving and foundation work around a 75-inch tank built for that 8,715-pound rated load. Get an instant number with our Freight Cost Estimator or call 866-418-1777 and we will route it from the closest origin. For secondary containment requirements, compare options in our Snyder Captor 110% containment vs UL-142 breakdown.
