150 Gallon Cone Bottom Tank

The Norwesco 150 Gallon Cone Bottom Tank (SKU N-41467) is a polyethylene cone-bottom vessel built for chemical metering, mixing, and full-drain batch work where you cannot leave product sitting on a flat floor.It stands 43 inches tall on a 36-inch diameter footprint and carries a 1.5 specific gravity rating, which is the single most important number on this page when you are matching it to a chemical.The cone geometry lets the tank empty cleanly to the outlet, so it is a common pick for coagulant feed, dilution, and day-tank duty.

Will it hold your chemical?

The 1.5 specific gravity rating is the wall you have to respect.It means the polyethylene wall is engineered for contents up to 1.5 times the density of water, and going heavier than that overworks the wall over time.With 150 gallons of plain water inside, the tank carries roughly 1,251 pounds; loaded to its maximum rated contents at 1.5 SG, that climbs to about 1,876 pounds.A cone-bottom tank cannot sit unsupported on its outlet - it needs a matching stand or saddle sized for that 1,876-pound loaded figure, not the water figure.Size your outlet for the cone angle so a high-solids slurry drains instead of bridging; our cone-bottom outlet sizing guide walks through the drain-time math.For the geometry and outlet location, see the technical drawing on this page, and use the Tank Sizing Calculator and Tank Sizing Guide to confirm 150 gallons matches your batch volume.

Chemical compatibility

This polyethylene tank is rated to 1.5 specific gravity.Confirm the exact resin type (HDLPE vs.XLPE) with the OEM before committing the tank to chemical service, since cross-linked and linear polyethylene behave differently with certain chemistries.A compatible rating only holds when three things match: the tank wall, the fitting material, AND the gasket - the wall passing is necessary but not sufficient, so read all three columns below before you order.At the 1.5 SG rating, these are compatible at the listed concentrations: Acetic Acid 60% (PP/PVC fittings, EPDM gaskets), Aluminum Sulfate 50% (PVC, EPDM), Calcium Chloride 40% (PVC, EPDM), DEF 32.5% (316SS, EPDM), Ferrous Sulfate 20% (PVC, EPDM), Magnesium Chloride 30% (PVC, EPDM), Sodium Carbonate 30% (PVC, EPDM), Urea Solution 50% (PP/PVC, EPDM), and Ozonated Water up to 10 PPM (PVC, EPDM).Note the fitting metal differs between two closely related chemistries: DEF at 32.5% requires 316 stainless fittings, while Urea Solution at 50% accepts PP/PVC - do not carry the cheaper PP/PVC spec over to a DEF dispensing setup.Every chemical this tank can hold pairs with an EPDM gasket; if your chemistry calls for Viton or Aflas, it also needs the heavier-wall tank.Always verify against the OEM chemical-resistance chart for your exact concentration and operating temperature, because both shift the rating.

Chemicals that need the 1.5 SG cone-bottom tank

Nineteen common chemicals are denser or more aggressive than this 1.5 SG tank should carry and require the heavier-wall 1.9 specific gravity cone-bottom tank instead - this is the honest answer rather than overselling this one, and the concrete next step is to spec the 1.9 SG version and check each chemical's page for the fitting and gasket detail.Those chemicals are Ethylene Glycol (PVC, EPDM), Ferric Chloride (PVC, EPDM), Ferric Sulfate (PVC, EPDM), Hydrochloric Acid (PVC, Viton), Hydrofluoric Acid (PP/PVC, Viton), Hydrofluosilicic Acid (PP/PVC, Viton), Hydrogen Peroxide (PVC, Viton), Peracetic Acid (316SS, Aflas), Phosphoric Acid (PVC, Viton), Polyaluminum Chloride (PVC, EPDM), Potassium Carbonate (PVC, EPDM), Potassium Hydroxide (PVC, EPDM), Propylene Glycol (PP/316SS, EPDM), Sodium Bisulfate (PVC/PP, EPDM), Sodium Bisulfite (PVC/PP, EPDM), Sodium Hypochlorite (PVC, Viton), Sodium Thiosulfate (PVC, EPDM), Sulfuric Acid (CPVC, Viton), and Zinc Orthophosphate (PP/316SS, EPDM).Watch how the gasket spec changes for the strong oxidizers and acids - Viton or Aflas, not EPDM - which is the mistake to avoid: pairing the right tank with the wrong gasket.Cross-check your service against the full Chemical Compatibility Database before you order.

Freight and ordering

This tank ships LTL freight from Burnet, TX, and freight is quoted live to your ZIP - it is never included in the list price.Get a number in seconds with the Freight Cost Estimator, or call 866-418-1777 and we will quote it and help you finalize fittings and gasket materials for your chemistry.Before you specify the top plate, the fitting placement guide, the level gauge selection guide, and the label and signage compliance guide will help you set up this cone bottom tank correctly the first time.