1625 Gallon Horizontal Leg Tank

The Norwesco 1625 Gallon Horizontal Leg Tank (N-40026) is a polyethylene haul-and-store workhorse for ag and fertilizer fleets that need a self-supporting horizontal tank with molded legs.It carries a 1.5 specific gravity rating, which is the number that decides whether your contents are safe to haul in it.Filled with water this tank weighs about 13,552 lb, but the actionable figure for haul service is the contents rating: Norwesco rates it for liquid up to 20,329 lb at the full 1.5 SG.That is roughly 6,800 lb more than plain water, so your trailer or skid axle rating - not the gallon mark - is usually the real constraint.Confirm your loaded weight against both numbers before you fill.

Will this Norwesco horizontal leg tank work for your load?

The 1.5 SG rating is the dividing line.Anything at or below 1.5 specific gravity that is chemically compatible (see below) is within rating; denser liquids need a heavier-rated tank.A strong fit for this tank is DEF (diesel exhaust fluid) at 32.5% on 316SS fittings and EPDM gaskets - DEF runs near 1.5 SG, comfortably inside the 1.5 rating, which is why this size pairs naturally with applicator and fleet service.Use the molded legs as the support footprint they were designed for, and match your fittings, plumbing, and tie-downs to a horizontal tank that shifts load as it drains.Cross-check the exact outlet locations, leg spacing, and overall length against the technical drawing on this page before you build a skid or trailer mount.For sizing across a fleet or comparing this against other Norwesco leg and applicator tanks, run the numbers through our Tank Sizing Calculator and Tank Sizing Guide.

Chemical compatibility

This is a polyethylene tank rated to 1.5 specific gravity.Norwesco does not publish whether this shell is HDLPE or XLPE in our data, so confirm the resin with the factory before putting it into any chemical service.Compatibility also depends on fitting and gasket material, and every chemical below must be verified against the OEM chemical-resistance chart at the specific concentration and temperature of your service - the chart is concentration- and temperature-specific, not a blanket yes.

Within the 1.5 SG rating, the following are listed as compatible at the noted concentrations, with the fitting and gasket materials that go with them: Acetic Acid at 60% (PP/PVC fittings, EPDM gaskets), Aluminum Sulfate at 50% (PVC, EPDM), Calcium Chloride at 40% (PVC, EPDM), DEF at 32.5% (316SS, EPDM), 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; reference our chemical-compatibility resource).

Several common liquids exceed what a 1.5 SG tank should carry and need a higher 1.9 SG-rated Norwesco tank instead - do not run them in this one, but we can spec the heavier tank for you: 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.Watch the elastomer here too: many of these (Hydrochloric, Hydrofluoric, Hydrofluosilicic, Hydrogen Peroxide, Phosphoric, and Sodium Hypochlorite) call for Viton gaskets rather than EPDM, Sulfuric Acid wants CPVC fittings with Viton, and Peracetic Acid needs 316SS fittings with Aflas.Start every chemical decision at our chemical compatibility resource.

The mistake to avoid

The trap on a horizontal leg tank like this is loading by gallons instead of by weight.At 1625 gallons, a dense fertilizer blend can put you over the 20,329 lb contents rating long before the tank looks full, and a stratified or salted-out blend behaves differently than the clear liquid you started with.Verify your blend density against the 1.5 SG rating, and if you mix or store fertilizer in this tank, read our guides on Norwesco applicator and leg tanks for fertilizer, portable utility tanks and the 49 CFR 173.5 ag exemption, and fertilizer-blend tank stratification before you run the spreader.

This tank ships LTL freight from the Norwesco plant in Lancaster, Ohio, with the rate quoted live to your ZIP.Get your number with the Freight Cost Estimator, or call 866-418-1777 to talk through fittings, weight rating, or stepping up to a 1.5 SG tank before you order.