The Snyder Industries 290 Gallon HDLPE Vertical Chemical Storage Tank is a 1.9 specific-gravity vertical tank built in high density linear polyethylene (HDLPE) for bulk chemical service. It stands 72 inches tall on a 36 x 36 inch footprint, so it drops into a tight pad or containment area without sprawling. The 1.9 SG rating is the number that matters most here: it tells you how heavy a liquid this wall thickness is engineered to hold, and 1.9 is the heaviest-duty rating offered for this vertical line, so you do not need to step up to a different shell for dense acids and brines. Empty-to-full water weight runs about 2,419 lb, but the tank is rated to carry contents up to 4,595 lb, which is what lets it safely hold dense chemistries that a 1.0 or 1.5 SG tank cannot.
Will it work for your application
This vertical storage tank carries three distinct top fittings: a flange, an 18-inch PE threaded/vented lid, and a manway with 15-inch access. The 18-inch threaded/vented lid is the one to note for a sealed chemical duty, since venting handles the vacuum and pressure swings of fill-and-draw, and the 15-inch access is the working opening inside the manway for filling, inspection, and dropping in a dip tube or level gauge without a confined-space entry. On a 36 x 36 inch footprint, a full 1.9 SG load puts roughly 4,595 lb on about 9 square feet of pad, so confirm your slab or containment is rated for that point load. See the technical drawing on this page for exact fitting placement, port elevations, and outlet locations before you plumb it. If you are sizing this tank against your throughput or tank-farm layout, run the numbers through our Tank Sizing Calculator and review the Tank Sizing Guide. When you spec a level gauge for a chemical duty, the technology choice matters more than most buyers expect, so it is worth reading our guide on tank level gauge selection for chemical service.
Chemical compatibility
This is an HDLPE tank rated to 1.9 specific gravity. The resin grade is confirmed HDLPE, so it suits a wide band of chemistries, but every install still has to be matched against an OEM chemical-resistance chart at your actual concentration and temperature, because compatibility shifts with both. The chemicals below are compatible with this tank and resin; the listed fitting and gasket materials are the recommended wetted materials for that service. Match your fitting and gasket to the chemical, not just the tank. The Viton and 316SS/Aflas entries are the exceptions to watch, so they are flagged below.
- Acetic Acid at 60% — PP/PVC fittings, EPDM gaskets
- Aluminum Sulfate at 50% — PVC fittings, EPDM gaskets
- Calcium Chloride at 40% — PVC fittings, EPDM gaskets
- DEF at 32.5% — 316SS fittings, EPDM gaskets
- Ethylene Glycol at 100% — PVC fittings, EPDM gaskets
- Ferric Chloride at 50% — PVC fittings, EPDM gaskets
- Ferric Sulfate at 60% — PVC fittings, EPDM gaskets
- Ferrous Sulfate at 20% — PVC fittings, EPDM gaskets
- Hydrochloric Acid at 37% — PVC fittings, Viton gaskets
- Hydrofluoric Acid at 48% — PP/PVC fittings, Viton gaskets
- Hydrofluosilicic Acid at 26% — PP/PVC fittings, Viton gaskets
- Hydrogen Peroxide at 50% — PVC fittings, Viton gaskets
- Magnesium Chloride at 30% — PVC fittings, EPDM gaskets
- Peracetic Acid at 30% — 316SS fittings, Aflas gaskets
- Phosphoric Acid at 85% — PVC fittings, Viton gaskets
- Polyaluminum Chloride — PVC fittings, EPDM gaskets
- Potassium Carbonate at 50% — PVC fittings, EPDM gaskets
- Potassium Hydroxide at saturated concentration — 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 at 30% — PVC fittings, EPDM gaskets
- Sodium Hypochlorite at <16.5% — PVC fittings, Viton gaskets
- Sodium Thiosulfate at 40% — PVC fittings, EPDM gaskets
- Sulfuric Acid at 98% — CPVC fittings, Viton gaskets
- Urea Solution at 50% — PP/PVC fittings, EPDM gaskets
- Zinc Orthophosphate — PP/316SS fittings, EPDM gaskets
- Ozonated Water up to 10 PPM — PVC fittings, EPDM gaskets
Always confirm your service against the OEM chemical-resistance chart at your exact concentration and temperature, and cross-check fitting and gasket selection in our Chemical Compatibility Database.
The mistake to avoid
The most common chemical-tank error is matching the tank shell but ignoring the wetted hardware. Sodium hypochlorite as listed at under 16.5%, hydrogen peroxide at 50%, sulfuric acid at 98%, and phosphoric acid at 85% all call for Viton gaskets — EPDM will not survive them — and sulfuric acid specifically wants CPVC fittings rather than plain PVC. DEF and peracetic acid call for 316 stainless fittings. Sodium hypochlorite is also an oxidizer that works on polyethylene over time, so hold it at the listed under-16.5% ceiling and inspect the tank on a schedule. Picking the gasket and fitting material off the chemical, not off habit, is what keeps the tank in service. The second mistake is loading a dense chemistry without checking the SG rating; this tank is built to 1.9 SG and a contents weight up to 4,595 lb, so verify your liquid's specific gravity stays at or below that before you fill. If you are weighing containment options, our comparison of Snyder Captor 110% containment versus UL-142 covers the SPCC trade-offs. For correct hazard labeling once it is in service, see our guide on tank label and signage compliance, and for ongoing quality control review our tank chemical sampling protocol.
This tank ships LTL freight from the Snyder plant in Philippi, West Virginia, with the rate quoted live to your ZIP code. Get your freight cost with our Freight Cost Estimator, or call 866-418-1777 to confirm fittings, lead time, and freight before you order.
