Norwesco 500 Gallon Black Elliptical Tank

The Norwesco 500 Gallon Black Elliptical Tank (SKU 40328B) is a low-profile polyethylene tank built for hauling liquid where height is the enemy.At 44 inches tall on a 57-by-82-inch footprint, it sits low on a flatbed, skid, or trailer deck and keeps the center of gravity down when you move 500 gallons over the road.The black polyethylene shell carries a 1.5 specific gravity rating, so it is rated for liquids up to one-and-a-half times the weight of water - the right starting point for water, agricultural mixes, and the chemicals listed below.

Will this Norwesco 500 elliptical tank work for my job?

Plan your support and your truck around the loaded weight, not the empty shell.Filled with water this tank carries roughly 4,170 lbs, and at its full 1.5 SG rating the contents can reach about 6,255 lbs.Use that ceiling as a loading rule: at SG 1.0 (water) you can fill all 500 gallons, but for a heavier 1.2-SG mix cap the fill near 417 gallons so the contents stay under that 6,255 lb limit.That weight also drives the strength of your skid or cradle, the tie-down rating, and the axle capacity of the trailer underneath it.The elliptical (oval) shape needs a contoured saddle or fitted cradle that cradles the lower curve continuously - never bridge an elliptical hull on two narrow bearers.Fitting and bulkhead configuration for this SKU is confirmed at order, so call 866-418-1777 before you specify valves or plumbing, and check fittings, bulkhead locations, and wall detail against the technical drawing on this page.Use our Tank Sizing Calculator and Tank Sizing Guide to match the 500-gallon capacity and footprint to your load.If you are running a fertilizer or applicator setup, our guides on applicator and leg tanks for fertilizer and fertilizer-blend tank stratification walk through real field setups, and the loaf-style utility tank DOT and 49 CFR ag-exemption breakdown covers how portable utility tanks are classified for farm fleet use.

Chemical compatibility

This is a polyethylene tank (resin reads HDLPE?) rated to 1.5 specific gravity.Because the resin designation is not fully confirmed, verify HDLPE versus XLPE with us before putting this tank into chemical service - crosslinked and high-density linear resins behave differently with aggressive chemistries.At its 1.5 SG rating, this tank is suited to Acetic Acid at 60% (PP/PVC fittings, EPDM gaskets), Aluminum Sulfate at 50% (PVC, EPDM), Calcium Chloride at 40% (PVC, EPDM), DEF / diesel exhaust fluid at 32.5% (316SS fittings, EPDM gaskets), Ferrous Sulfate at 20% (PVC, EPDM), Magnesium Chloride at 30% (PVC, EPDM), Sodium Carbonate at 30% (PVC, EPDM), Urea Solution at 50% (PP/PVC, EPDM), and Ozonated Water up to 10 PPM (PVC, EPDM).Match the wetted fitting and gasket material to your chemical: DEF, for example, requires 316SS hardware with EPDM gaskets, not PVC.See each chemical's page - Acetic Acid, Aluminum Sulfate, Calcium Chloride, DEF, Ferrous Sulfate, Magnesium Chloride, Sodium Carbonate, and Urea Solution - and always check the OEM chemical-resistance chart, which is concentration- and temperature-specific.Ozonated Water has no dedicated compatibility page yet, so confirm contact time and concentration with us before ozone service.

Chemistries that need a heavier 1.5 SG tank

Several chemicals are compatible with polyethylene but exceed this tank's 1.5 SG rating and require a 1.9 specific-gravity tank instead - do not run them in this 500: Ethylene Glycol, Ferric Chloride, Ferric Sulfate, Hydrochloric Acid, Hydrofluoric Acid, Hydrofluosilicic Acid, Hydrogen Peroxide, Peracetic Acid, Phosphoric Acid, Polyaluminum Chloride, Potassium Carbonate, Potassium Hydroxide, Propylene Glycol, Sodium Bisulfate, Sodium Bisulfite, Sodium Hypochlorite, Sodium Thiosulfate, Sulfuric Acid, and Zinc Orthophosphate.Several of these also call for Viton or Aflas gaskets rather than EPDM - sodium hypochlorite, hydrogen peroxide and the acids need Viton, and peracetic acid needs Aflas.Running any of these?Ask us for the 1.9-SG Norwesco equivalent and we will quote the right resin and the closest of our six shipping plants.Browse the full chemical compatibility reference before committing.

This tank ships by LTL freight, quoted live to your ZIP from the nearest Norwesco plant - Fairfield, TX; Griffin, GA; Hanford, CA; Lancaster, OH; St.Bonifacius, MN; or Tooele, UT.Get an exact rate with our Freight Cost Estimator, or call 866-418-1777 to confirm the right resin, fittings, and the closest shipping point for your delivery.