The Snyder Industries 4100 Gallon HDPE Vertical Chemical Storage Tank is molded in white high density linear polyethylene and rated to a 1.9 specific gravity, standing 130 inches tall on a 102 x 102 inch footprint. That 1.9 SG rating is the reason to buy this tank over a water-grade vertical: it is the heaviest-duty specific-gravity rating offered in this Snyder vertical line, which means it legally carries the dense chemistries a 1.5 SG tank cannot, things like 98% sulfuric acid, 85% phosphoric acid, and 50% ferric sulfate. The pack numbers tell you how to engineer for that weight: a max rated contents weight of 64,969 lb at full SG versus about 34,194 lb with plain water at capacity. Size the pad and anchoring to your actual contents weight, not the water figure.
How it works for your install
The technical drawing on this page shows the fitting package for this vertical storage tank: a manway with 15-inch access, an 18-inch PE threaded/vented port, a flange, and a 12 x 23 fitting, with flat boss areas for field-adding outlets where you need them. Confirm the exact port layout against that drawing before you order bulkheads. Plan the slab and containment dike around the 102 x 102 inch footprint, and reconcile working volume, freeboard, and pad loading with the Tank Sizing Calculator and Tank Sizing Guide before you commit. For metering a vertical tank this tall, our guide on level gauge selection for chemical service weighs radar, ultrasonic, hydrostatic, and magnetostrictive against the manway access you have here.
Chemical compatibility
The shell is HDLPE rated to 1.9 specific gravity. The pairings below come from the OEM chemical-resistance chart and are concentration- and temperature-specific, so verify your exact service against the chart and our Chemical Compatibility Database before ordering. The wetted materials group into three tiers, which is the part to get right the first time:
- PVC fittings with EPDM gaskets for salts, glycols, and carbonates: Aluminum Sulfate 50%, Calcium Chloride 40%, Ethylene Glycol 100%, Ferric Chloride 50%, Ferric Sulfate 60%, Ferrous Sulfate 20%, Magnesium Chloride 30%, Polyaluminum Chloride, Potassium Carbonate 50%, Potassium Hydroxide saturated, Sodium Carbonate 30%, Sodium Thiosulfate 40%, Ozonated Water up to 10 PPM, plus the PP/PVC variants Acetic Acid 60% and Urea Solution 50%, and the PVC/PP Sodium Bisulfate and Sodium Bisulfite.
- Viton gaskets for oxidizers and strong acids: Hydrochloric Acid 37% (PVC), Phosphoric Acid 85% (PVC), Hydrogen Peroxide 50% (PVC), Sodium Hypochlorite below 16.5% (PVC), Sulfuric Acid 98% (CPVC), Hydrofluoric Acid 48% (PP/PVC), and Hydrofluosilicic Acid 26% (PP/PVC).
- 316 stainless fittings for the specialty cases: DEF 32.5% (316SS, EPDM), Peracetic Acid 30% (316SS, Aflas), plus Propylene Glycol and Zinc Orthophosphate (both PP/316SS, EPDM).
The mistake to avoid on a tank this size is mating the wrong gasket to the chemistry: the oxidizers and strong acids here call for Viton, peracetic acid wants Aflas, and DEF and peracetic service need 316 stainless rather than PVC. Ozonated Water is the one entry without a dedicated page yet, so verify ozone service through the Chemical Compatibility Database. For labeling the finished installation, see our guide on NFPA 704 and GHS signage compliance, and for ongoing QA, the chemical sampling protocol covers representative sampling and analysis cadence by chemistry class.
Freight and ordering
This tank ships by LTL freight from Philippi, West Virginia, quoted live to your ZIP. A 4100-gallon vertical at 130 inches tall is a dedicated freight handle, so use the Freight Cost Estimator for a freight quote or call 866-418-1777 to confirm offload requirements and lead time. Listed at the price shown above, before freight. If you are weighing 110% containment for this installation, our Snyder Captor Plus 110% containment versus UL-142 and SPCC comparison walks through the options. For help with fitting layout or specific-gravity sizing for your chemistry, call 866-418-1777 and we will spec it with you.
