The Snyder Industries 4400 Gallon XLPE Heavy Duty Cone Bottom Tank is a crosslinked-polyethylene cone tank built for full-drain chemical and process duty. It holds 4,400 gallons, measures 90 inches in diameter and stands 200 inches in overall tank height on a footprint of 90.0 x 90.0 inches, and is molded in Natural White crosslinked linear polyethylene (XLPE). The cone bottom drains completely, which is what you want for batching, dosing, or any service where you cannot leave a chemical heel sitting in the tank.
Will it work for your application
This is a heavy-duty XLPE shell carried at a 1.9 specific gravity rating, the top of Snyder's cone-bottom range. That rating is the number that matters for chemical duty: it tells you the resin and wall are engineered to carry liquids substantially heavier than water. Filled with water (SG 1.0) the contents weigh about 36,696 lb; at the full 1.9 rating the contents can reach roughly 69,722 lb, so plan your stand, anchoring, and pad for that loaded weight, not the water number. The 200 in figure is overall tank height; the cone bottom requires additional stand and clearance height below that, so a cone-bottom tank of this size always rides in a steel stand or cradle sized to the cone angle. See the technical drawing on this page for the cone geometry before you size a building or containment basin or fabricate a stand, and the Cone Bottom Tank Stand Compatibility Matrix for matching options. Factory fittings on the drawing include a flange, an 18-inch PE threaded/vented top fitting, and a manway with 15-inch access; the threaded/vented top fitting and 15-inch manway access support the venting and inspection that the dosing and batching service this cone is built for require. Use the Tank Sizing Calculator and Tank Sizing Guide to confirm this 4,400-gallon cone tank fits your throughput and drain schedule.
Chemical compatibility
This tank is molded in crosslinked polyethylene (XLPE) and rated to 1.9 specific gravity, which is why it suits aggressive and high-gravity chemistries that an HDPE tank cannot carry. Crosslinking changes how the resin behaves under chemical attack and stress - the Snyder XLPE vs HDPE guide explains when that distinction matters for your chemistry. The tank resin tolerance and the wetted fitting and gasket materials are separate ratings: a chemistry is only compatible when XLPE plus the listed fitting material plus the listed gasket are all matched. Substituting EPDM where Viton is specified - as with hydrofluosilicic acid - voids the rating. Always confirm against the OEM chemical-resistance chart at your exact concentration and operating temperature before committing the tank to service; resistance is concentration- and temperature-specific. Verified compatible chemistries and their recommended fitting and gasket materials include:
- 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
- Hydrofluosilicic Acid (26%) - PP/PVC fittings, Viton gaskets
- Magnesium Chloride (30%) - PVC fittings, EPDM 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 Carbonate (30%) - PVC fittings, EPDM gaskets
- Sodium Thiosulfate (40%) - PVC fittings, EPDM gaskets
- Urea Solution (50%) - PP/PVC fittings, EPDM gaskets
- Ozonated Water (up to 10 PPM) - PVC fittings, EPDM gaskets
DEF and propylene glycol on this tank require 316 stainless wetted fittings rather than PVC, so budget and lead-time for stainless accordingly. The full Chemical Compatibility Database carries the OEM chart for cross-checking concentration and temperature.
The mistake to avoid
The most common error on a tank this size is specifying around the empty weight or the water weight and ignoring the 1.9 rating. If your chemistry is heavy, the loaded tank can approach 69,722 lb of contents, and the stand, anchors, and foundation have to carry it. The second mistake is treating XLPE and HDPE as interchangeable - they are not, and the wrong resin for a given chemical can fail prematurely. Finally, do not assume DEF and similar urea chemistries are casual: DEF here calls for 316 stainless fittings, and the level gauge selection guide covers picking instrumentation that survives the chemistry. If you are also weighing secondary containment, the Snyder Captor Plus 110% containment comparison walks through the options. At 1.9 SG this is already the top of Snyder's cone-bottom range, so there is no heavier-rated cone step-up to chase - spec to 1.9 with confidence.
This cone bottom tank ships LTL from Snyder's plant in Lincoln, NE, with freight quoted live to your ZIP - get a number in seconds with the Freight Cost Estimator or call 866-418-1777. Confirm your chemistry against the OEM chart and the resin rating before you order, and we will help you spec the right fittings and stand for the job.
