3900 Gallon 30 Degree Plastic Cone Bottom Tank

The stand under it, the pad under the stand, the roof above both

A cone bottom tank has no flat floor and cannot stand on its own bottom, so the first question on this page is not the tank at all. It is what holds it up. This sheet publishes no stand, no legs, no skirt, no support ring and no bolt pattern, which is why no stand height, rated load, leg count or material appears anywhere on this page; the support is a separate item with its own drawing, its own lead time and its own price. What the sheet does give that structure is the loading it has to answer, and those figures are the ones to put in front of whoever pours the pad: 1,000 pounds of empty tank, 32,526 pounds when it is full of water, and up to 61,799 pounds of contents at the rating on this sheet, all of it arriving through a handful of feet inside a 90 inch circle rather than spreading across a slab. That is the crucial difference between a cone and a flat bottom vertical. A flat bottom tank hands its load to the whole floor it sits on; a cone hands it to point loads, and point loads are what crack a pad that was specified for a tank of the same weight. Then the height, which on this listing is the figure that catches people out. The shell is 180 inches, fifteen feet, before a stand is chosen and before the stand is put on a pad, and the stand is deliberately tall on a cone because the whole reason to buy the shape is clearance underneath it. You need room below the discharge for a valve, for whatever the valve feeds and for a person to reach both. So the sum to do on the building is the shell plus the stand plus the pad, measured against the lowest thing over the tank, which is usually a duct, a sprinkler line or a crane rail rather than the roof itself. Do that sum before the order, because the one thing that cannot be fixed afterwards is headroom. Around the base, leave working space on all sides rather than tucking the tank into a corner, keep the pad edge clear so you can see the feet, and think about where a spill would run before there is one. Size the volume with the tank sizing calculator, take the freeboard from the tank sizing guide, and if the angle itself is what you are deciding, the cone angle selection guide sets the common angles against each other.

Four rows on the one hundred and eighty inch shell, with a wider one and a taller one

The top four rows are one shell listed four times: 3,900 gallons, 90 inches across, 180 inches tall, separated on the sheet by empty weight and by the name printed on each. This listing is the 1,000 pound row. The sheet offers no account of why one row weighs 1,100 pounds and another 1,400 pounds, so none is offered here; what you buy against is the rating printed on the row you are reading, and on this one that is 1.9 with 61,799 pounds of max contents. The bottom two rows are where a real choice lives, and it is a choice about your building rather than about your liquid. 8050000N40 holds 3,600 gallons on a 102 inch circle at 125 inches tall, so it is wider on the floor and shorter overhead by nearly five feet. If your headroom is the binding constraint, that row is the one to price first and the gallons argument can follow. 5180000N40 holds 4,100 gallons on this same 90 inch circle at 197 inches, so it buys more volume out of height alone with no change to the footprint, the pad drawing or the aisle. That is the useful pattern to remember: where the circle stays the same, moving up a size is a drawing change, and where the circle changes, the pad, the stand and the bund all change with it. Decide the circle first and the gallons second. If the smaller end of this shape is what you are actually comparing, the long-form reads are the buyer's guide to a three hundred gallon cone bottom tank with a poly stand and the buyer's guide to the three hundred and ten gallon version, both of which take the stand question as seriously as the tank.

Ready to choose a row? Add the 3900 gallon tank to your cart above with freight quoted to your ZIP, or 866-418-1777 will confirm it against the site first.

What the discharge end publishes, and what the top does

• The outlet: this sheet publishes none. The outlet field is empty and so is the inlet field, so no discharge size, no thread, no bulkhead, no drain and no valve is claimed anywhere on this page. Tell us the line size you need to land, the valve type and the liquid, and we will confirm what this part number carries before anything is ordered.
• What hangs at the low point: whatever you fit there carries the column above it, and the sheet allows that column to reach 61,799 pounds. Carry the valve, any reducer and the first run of pipe on steelwork off the stand rather than on the tank, and put a flexible connector at the first joint so pump vibration stops there instead of travelling into the cone.
• The manway: an 18 inch threaded vented manway, with the lid size field also reading 18 inches. The vent arrives with the manway rather than as a separate item, and on a tank being pumped down that air path is doing structural work. Keep it clear, look at it every time the tank is open, and never blank, wrap or tape it to control an odour.
• Reaching it: the manway sits at the top of 180 inches of shell plus the height of the stand. This sheet counts no ladder lugs and no structural attachments at all, so plan the access with the structure and land the fill at a coupling at working level rather than asking anyone to carry a hose up.
• The cone: 30 degrees is the maker's name word for this listing and the cone degrees field is empty, so no measured angle is stated. If the way your product drains is the deciding factor, ask and we will confirm the geometry against the part number rather than reading it off an image.
• Limits: published here are a specific gravity rating of 1.9, 32,526 pounds of water at 3,900 gallons and 61,799 pounds of max contents. No max operating temperature and no warranty term is published on this sheet, and neither is claimed.

Because the sheet dimensions so little of the hardware, the fitting schedule on this tank is a conversation to have before the order rather than a list to read off a page.

Bulk holding where the vessel has to give all of it back

Thirty-nine hundred gallons is a full bulk drop held in one vessel, and the cone is there so that the vessel returns all of it. Liquid fertiliser and crop input storage at an agricultural retailer, treatment chemistry held at working strength at a water or wastewater works, process liquid and intermediate holding in manufacturing, blending duty where the tank is emptied between mixes, and recovered liquid waiting on a decision. The common thread is the changeover rather than the run. On a flat floor a product change leaves a layer to be pumped, shovelled or explained; on this shape the liquid keeps moving toward one low point and the change becomes a rinse. At this volume that difference is a disposal ticket and a contamination risk in the next batch, not a housekeeping detail. The rating on this row is the second reason it exists. A specific gravity rating of 1.9 with 61,799 pounds of max contents means product meaningfully heavier than water can fill the vessel rather than being limited by headroom, so work out what your liquid weighs per gallon before comparing part numbers; that single figure moves this decision further than price does. Two honest cautions. This sheet publishes no temperature limit, so a hot fill is a conversation rather than an assumption. And 180 inches of liquid on a 90 inch circle stratifies more readily than a wide shallow vessel does, so if your blend wants to separate, plan the draw point and the mixing arrangement at the same time as the tank. Name the liquid when you enquire and start the check in our chemical compatibility reference, because the gasket and the trim are chosen from the chemistry rather than from the vessel.

Liquids this resin is rated to store

These entries are the manufacturer's ratings for this resin, each with the concentration limit and the fitting and gasket to specify. Your concentration and temperature are confirmed on the chemical page or in the chemical compatibility database before ordering.

• Acetic Acid (60%) - PP/PVC fittings, EPDM gaskets
• Aluminum Sulfate (50%) - PVC fittings, EPDM gaskets
• Calcium Chloride (40%) - PVC fittings, EPDM gaskets
• DEF (32.5%) - 316SS fittings, EPDM gaskets
• Ethylene Glycol (100%) - PVC fittings, EPDM gaskets
• Ferric Chloride (50%) - PVC fittings, EPDM gaskets
• Ferric Sulfate (60%) - PVC fittings, EPDM gaskets
• Ferrous Sulfate (20%) - PVC fittings, EPDM gaskets
• Hydrochloric Acid (37%) - PVC fittings, Viton gaskets
• Hydrofluoric Acid (48%) - PP/PVC fittings, Viton gaskets
• Hydrofluosilicic Acid (26%) - PP/PVC fittings, Viton gaskets
• Hydrogen Peroxide (50%) - PVC fittings, Viton gaskets
• Magnesium Chloride (30%) - PVC fittings, EPDM gaskets
• Peracetic Acid (30%) - 316SS fittings, Aflas gaskets
• Phosphoric Acid (85%) - PVC fittings, Viton gaskets
• Polyaluminum Chloride - PVC fittings, EPDM gaskets
• Potassium Carbonate (50%) - PVC fittings, EPDM gaskets
• Potassium Hydroxide (saturated) - PVC fittings, EPDM gaskets
• Propylene Glycol - PP/316SS fittings, EPDM gaskets
• Sodium Bisulfate - PVC/PP fittings, EPDM gaskets
• Sodium Bisulfite - PVC/PP fittings, EPDM gaskets
• Sodium Carbonate (30%) - PVC fittings, EPDM gaskets
• Sodium Hypochlorite (
• Sodium Thiosulfate (40%) - PVC fittings, EPDM gaskets
• Sulfuric Acid (98%) - CPVC fittings, Viton gaskets
• Urea Solution (50%) - PP/PVC fittings, EPDM gaskets
• Zinc Orthophosphate - PP/316SS fittings, EPDM gaskets

A thousand pounds on an oversize ticket

This tank is moulded at Lincoln, Nebraska, and Nebraska is the origin state on the sheet, so the Midwest and the plains are on the short lane and both coasts are on the long one. The freight class reads 500 and the ship mode reads oversize, which is the combination to plan around: 1,000 pounds of tank inside an envelope that the sheet lists shipped as 90 by 180 by 180 inches, lying down. It prices on the space it takes rather than on the scale ticket, and it is not something a carrier can slide onto a part load at short notice. Get the lane figure with the freight cost estimator before you commit; the listed price is before freight. It travels lying down and is stood up at your end, so nominate the machine and the person for that job in advance rather than solving it at the tailgate, and remember that standing a fifteen foot shell needs clear air above the trailer as well as beside it. The sheet publishes no crane, no rigging, no permit and no escort detail, so none is described here; agree the offload equipment and the delivery window with us before the truck is booked. Have the stand set, levelled and anchored first, because a cone bottom tank with nowhere to stand is a tank lying in your yard taking up the space you needed. No lifting lugs are counted on this sheet, so do not assume any: sling under the body, never off the manway, and restrain the shell from the moment it is upright. Commission with clean water rather than product, hold the 32,526 pound water load, then read the manway seal, the cone joint, the stand feet and the pad edge in that order and leave it standing full overnight. Chalk the full-water line on the outside while the tape is out; it is the mark every later reading gets checked against. Leave room to walk all the way around it; the side of the tank nobody can see is the side that leaks.