The Snyder Industries 4900 Gallon Vertical HDPE Chemical Storage Tank is a 1.5 specific gravity, white linear polyethylene vessel built for bulk liquid chemical service at full plant scale, with the ASTM certification its name carries. It stands 202 inches tall (16 ft 10 in) on a 90 x 90 inch footprint (7.5 x 7.5 ft), so check that height against your door, ceiling, and overhead clearance, and confirm pad dimensions, before you commit a location. This is a true vertical storage tank rated to hold contents up to 1.5 specific gravity, which is the single most important number to match against the chemical you intend to store.
Will it work for your application
Filled with water this tank carries roughly 40,866 lb. At its maximum rated contents weight a 1.5 specific gravity chemical loads it to about 61,299 lb, roughly 50% heavier than the water-fill figure, so size the concrete pad and verify soil bearing to the rated case, not the water test. A fully loaded chemical tank at this scale is a real structural load, and at 61,300 lb of contents you should plan secondary containment and SPCC scope up front; compare options in the Snyder Captor Plus 110% containment comparison. Run your numbers through the Tank Sizing Calculator and review the Tank Sizing Guide if you are still settling on capacity. The molded-in fitting package supports real plumbing: a flange, an 18-inch PE threaded and vented fitting, a manway with 15-inch access for entry and inspection, two-to-three-inch S.U.M.O. fittings, a 12 x 14 inch fitting, and a flat fitting location. Match fitting and gasket materials to your chemical before ordering hardware, and see the technical drawing on this page for exact fitting placements and elevations.
Chemical compatibility
This is an HDLPE tank rated to 1.5 specific gravity, built to the ASTM D1998 basis for HDPE vertical storage tanks that its name references. Verify HDLPE versus XLPE construction before chemical service, since cross-linked polyethylene and high-density linear polyethylene behave differently against certain reagents. Compatibility below is drawn from the OEM chemical-resistance chart and is concentration- and temperature-specific, so always confirm against the chart for your exact conditions.
At or under the 1.5 SG rating, this tank suits these chemicals with the fitting and gasket materials shown: Acetic Acid (60%, PP/PVC fittings, EPDM gaskets), Aluminum Sulfate (50%, PVC, EPDM), Calcium Chloride (40%, PVC, EPDM), DEF (32.5%, 316SS fittings, EPDM) — making this a practical diesel exhaust fluid storage tank — Ferrous Sulfate (20%, PVC, EPDM), Magnesium Chloride (30%, PVC, EPDM), Sodium Carbonate (30%, PVC, EPDM), Urea Solution (50%, PP/PVC, EPDM), and Ozonated Water (up to 10 PPM, PVC, EPDM — no dedicated page yet, so confirm against the chart). Browse the full Chemical Compatibility Database for additional reagents and conditions.
Chemicals that need a higher-SG tank
Several common chemicals carry a density that exceeds this tank's 1.5 SG rating and require a 1.9 specific gravity tank instead — do not store them in this vessel. Those include Ethylene Glycol, Ferric Chloride, Ferric Sulfate, Hydrochloric Acid (Viton gaskets), Hydrofluoric Acid, Hydrofluosilicic Acid, Hydrogen Peroxide, Peracetic Acid (316SS fittings, Aflas gaskets), Phosphoric Acid, Polyaluminum Chloride, Potassium Carbonate, Potassium Hydroxide, Propylene Glycol, Sodium Bisulfate, Sodium Bisulfite, Sodium Hypochlorite (Viton), Sodium Thiosulfate, Sulfuric Acid (CPVC fittings, Viton), and Zinc Orthophosphate. If your service is on this list, ask us about the 1.9 SG version before you buy.
Avoid the most common mistake
The mistake that sinks bulk chemical installs is sizing the tank to the volume and ignoring the gasket and fitting chemistry. EPDM works for most of the compatible chemicals above, but several aggressive oxidizers and acids demand Viton or Aflas — get that wrong and the tank holds while the fittings leak. For instrumentation, the tank level gauge selection guide walks through radar versus ultrasonic versus hydrostatic for chemical service, and the HDPE wall-thickness guide explains why the vapor-saturated headspace is where premature failures start and how the ASTM D1998 sizing logic accounts for it. For labeling and code placement, see our bulk polyethylene labeling and signage guide.
This tank ships LTL freight from the Snyder plant in Lincoln, Nebraska, palletized and quoted live to your ZIP code. Get an LTL freight quote to your ZIP in seconds with the Freight Cost Estimator, or call 866-418-1777 and our team will quote the freight, confirm fitting selection, and help you match the tank to your chemical and specific gravity.
