Chem-Tainer 30 Gallon 20 Degree Plastic Vertical Open Top Cone Bottom Tank with Lid

The Chemtainer TC1829CA is a 30-gallon open-top cone-bottom tank molded in polyethylene with a 20-degree cone and an 8" lid, standing 29" tall on an 18"-diameter footprint.The full cone bottom is built for jobs where you need to drain completely and leave nothing behind - batching, dosing, settling, and small-volume chemical transfer where residue in a flat bottom would mean cross-contamination or waste.Empty it weighs about 15 lb, so one person can position it.It ships with the 8" lid only; the support rack and outlet fittings are sized and sold separately, so plan them before it goes into service - a cone-bottom tank has to be supported in a rack or frame and never set flat on the floor.

Will it hold your contents

This tank carries a 1.5 specific-gravity rating, meaning the wall is built for liquids up to 1.5 times the weight of water.Filled with water it holds roughly 250 lb; at its full 1.5 SG rating the contents can reach about 375 lb.Size the frame accordingly - it has to carry 375 lb of contents plus the 15-lb tank, about 390 lb minimum.Match your liquid's specific gravity to the 1.5 rating before you buy: if your chemical is heavier than 1.5 SG, this is the wrong shell.Use the Tank Sizing Calculator and Tank Sizing Guide to confirm capacity and weight against your batch size, and plan your top penetrations - vent, fill, and level - with the tank top fitting placement guide.If you are weighing cone angles for a larger cone-bottom, the 15 vs 30 vs 45 degree cone selection guide covers how the angle affects drain-down.

Chemical compatibility

This is a polyethylene tank rated to 1.5 specific gravity.Its resin is recorded as HDLPE but not yet confirmed - confirm HDLPE vs XLPE before you put it into chemical service, because the two cross-link differently and that changes what it can hold.Compatibility below is drawn from the Snyder Industries OEM chemical-resistance chart, which is concentration- and temperature-specific; confirm your exact chemical, concentration, temperature, and the fitting and gasket materials before ordering.

At the 1.5 SG rating, this tank is a fit for acetic acid (to 60%, PP or PVC fittings, EPDM gaskets), aluminum sulfate (50%, PVC/EPDM), calcium chloride (40%, PVC/EPDM), ferrous sulfate (20%, PVC/EPDM), magnesium chloride (30%, PVC/EPDM), sodium carbonate (30%, PVC/EPDM), and ozonated water (up to 10 PPM, PVC/EPDM).It also handles the lighter-weight fluids well within its rating: DEF at 32.5% (1.5 SG, use 316SS fittings with EPDM) and urea solution at 50% (1.5 SG, PP/PVC, EPDM).

Several common chemicals need a heavier tank than this one.Sodium hypochlorite (bleach, under 16.5%), ferric chloride (50%), hydrochloric acid (37%), sulfuric acid (98%, which needs CPVC fittings), phosphoric acid (85%), hydrogen peroxide (50%), peracetic acid (30%, 316SS fittings with Aflas gaskets), ethylene glycol (100%), potassium hydroxide, and polyaluminum chloride (concentration data pending) all require a 1.5 SG tank - do not run them in this 1.5-rated shell.If your chemical is on that 1.9-SG list, step up to a 1.5 specific-gravity tank and we will size the fittings and gaskets to it - call 866-418-1777.Check your chemical against the full Chemical Compatibility Database and pay attention to the gasket call-outs: EPDM for most salts and caustics, Viton or Aflas for oxidizers and strong acids.

Freight and ordering

The TC1829CA ships LTL from the nearest of two Chemtainer plants - Delano, MN or West Babylon, NY - with freight quoted live to your ZIP through our Freight Cost Estimator.Get an exact rate there, or call 866-418-1777 and we will confirm the resin, size the fittings and gaskets to your chemical, and book the shipment from whichever plant is closest to you.