Norwesco 7500 Gallon 30 Degree Cone Bottom Tank in White without Fitting

The black 7500 is the same shell; the sheet separates them by colour and nothing else

Begin with the family, because at this capacity the family is short and blunt. Part 42976 is 7500 gallons in a shell of exactly the same 141 by 141 by 149 inches at exactly the same 1385 pounds, and the sheet's difference between that record and this one is the colour column: black there, white here. There is no second difference published. So this page will not tell you that one of those two does something the other does not, because the sheet does not say it, and a colour value with a performance story attached to it is a story somebody made up.

The differences that are real live further down the list. Part 42414 is 6000 gallons and gets there a completely different way: 102 inches across and 195 inches tall, a narrow column instead of a wide drum, with a 15 degree figure in its name rather than 30. Part 44984 is 10000 gallons on the same 141 inch diameter as this record and runs to 190 inches tall. Read those two rows and the shape of the whole family comes clear. At 141 inches wide, capacity is bought with height; at 149 inches tall, this record is by a wide margin the shortest thing on the sheet holding more than 6000 gallons.

Two things this record does not carry are worth naming because they are easy to assume. The application field says NO Stand, in those words, so the support under the cone is not part of this record and no stand figure, height or capacity appears anywhere on it. And the name says without Fitting. Neither of those absences is a defect; they are how the part is sold.

Four cone records: 6000, 7500, 7500, 10000

One housekeeping note before you read the table: the sibling list on this sheet includes the number 40552, which is this record's own manufacturer part number. It is not a fourth neighbour, it is this row, and we have not linked it as a separate product. What is left is one identical twin in a different colour and two genuinely different tanks. The 6000 gallon column is the interesting one for anybody with a height limit, because it is the only record here that holds less and stands taller.

Picked the 7500 gallon tank? Add it to your cart above; freight is quoted to your ZIP before you pay anything.

A tall white cone at the 1.5 grade

The complete reading: 7500 gallons, white polyethylene, 141 inches in each horizontal direction, 149 inches overall, a cone degrees field of 30, 1385 pounds empty, 1385 pounds shipping, a crate figure of 141 by 141 by 149, a 16 inch opening at the top, 62550 pounds of water at 8.34 pounds per gallon, a maximum contents figure of 93825 pounds, a ceiling of 120 F / 48 C, freight class OVS, four plants and a blank warranty term.

The number that governs the whole installation is 93825 pounds, and it does not sit on a floor. On a cone bottom tank every pound of it arrives at whatever ring or frame the cone rests in, concentrated in a band rather than spread over a footprint, and that band is somebody's engineering problem before it is your tank problem. This record does not include a stand and does not describe one, so the support is a separate decision with a separate drawing, and it has to be made against the 93825 figure rather than against the 62550 water figure.

The honest limitation on this page: the record publishes no warranty term and no maximum operating detail beyond the ceiling, and it publishes no port. What it does publish, it publishes precisely, and that is the cone angle, the shell and the weights.

Two pieces of reading that are actually about this shape. The complete buyers guide to the 7500 gallon 30 degree cone bottom tank is written for this capacity and this angle. The write-up on top fitting placement strategy for polyethylene bulk storage covers vent, fill, level, drain and vapour recovery layout, which is the decision that gets frozen the day a tank this tall goes up and is expensive to revisit afterwards. Work the volume itself with the tank sizing calculator and the tank sizing guide.

The 16 inch opening, and the two things this record does not carry

1. Air. The only opening on this record is 16 inches and the field gives that number with no other wording beside it. No vent is named, no vent size is named and no second opening is named. Draining a cone bottom tank is the fastest way there is to empty 7500 gallons, and the faster the liquid leaves the more air has to arrive; how that happens on this shell is not settled by this record.
2. The port. The name says "without Fitting" and the outlet column is blank. Those are two different kinds of silence and neither is a drawing. A blank column tells you this record does not publish an outlet; it does not tell you what is or is not moulded into the bottom of the cone. Ask us to confirm the bottom of 40552 against the manufacturer's own paper before a single length of pipe is ordered, because on a cone bottom tank the bottom connection is the entire reason to own one.
3. The support. The application field reads Cone Bottom NO Stand. There is no stand in this record, no stand dimension, no clearance figure and no load figure, and you should treat the structure under the cone as a separate purchase and a separate engineering conversation rather than an accessory.

The install specific: set the discharge valve height before the support is fabricated, not after. Everybody remembers to ask how tall the stand needs to be for a truck or a tote to fit underneath, and almost nobody remembers that the valve, its handle and the swing of that handle live in the same space. Draw the valve into the elevation at the start and the fabricator will build room for it.

Rated chemistries for this tank

The manufacturer lists these liquids for this resin at the concentrations noted, with the fitting and gasket material to specify. Check the concentration and temperature you actually run on the linked page or in the chemical compatibility database before ordering.

• acetic acid (60%, PP/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).DEF and urea are particularly well suited here:
• DEF (32.5%, 316SS fittings, EPDM gaskets) and
• urea solution (50%, PP/PVC, EPDM) each need only a 1.5 SG tank, so this 1.5 SG shell exceeds that requirement and gives you design margin.
• 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 all call for a 1.5 SG-rated tank - don't force this one.Watch the gasket and fitting change several of them require:

Four plants, three states, and a 141 inch square crate

The plant column names Hanford in California, St. Bonifacius in Minnesota, Washington Court House in Ohio and Shawnee in Oklahoma. The ships-from column names Minnesota, Ohio and Oklahoma only, so the two lists disagree by one entry and we print both rather than picking. Freight class OVS, crate figure 141 by 141 by 149 at 1385 pounds. Price the lane with your ZIP through the freight cost estimator; the listed price is before freight.

Receiving this one is about the cone and nothing else. A cone bottom tank has no flat bottom to stand on, so it travels cradled or slung, and the single thing that ruins one between the plant and your yard is somebody resting it on the cone itself. Before the straps come off, look at what the tank is actually bearing on right now and confirm that the load is on the cylindrical wall or a purpose-built cradle, then make sure the same is true of wherever it is going to sit while you wait for the support to be finished. A cone parked on gravel for a fortnight is a cone carrying its own weight on a point it was never shaped to carry it on. Everything else about this delivery is ordinary; that one thing is not, and it is the thing to brief the yard crew on before the truck arrives rather than while it is waiting. Keep the delivery paperwork with the tank; the serial number on the shell is what a warranty claim starts from.