Snyder Industries 6500 Gallon XLPE Cone Bottom Tank

Same shell, lower rating, and when that is the right buy

This is the listing most buyers of a 6,500 gallon cone actually need, and the sheet makes the case in one line: a specific gravity rating of 1.5 with 81,315 pounds of max contents. Water is 8.34 pounds per gallon, and the very large family of process liquids that sit at or below water weight is what this rating covers. Treated water, wash water, most make-up solutions, most blends. Against it on the same 90 inch circle and the same 273 inch height sits 7180000N42, the natural white heavy duty listing at 2,800 pounds with its own higher rating, and 7180000N48, the black heavy duty listing at the same 2,800 pounds. Heavy duty is the maker's name word for those two, and the sheet publishes the weight, the rating and the max contents figure that separate them from this one and nothing else. No wall thickness and no construction difference is printed on the sheet, so none is stated here. What the difference costs you is easy to see on the freight ticket, and what it buys you is only useful if your product is denser than water. If it is not, this is the listing to buy and the money is better spent on the stand, the instrument and the pipework. The fourth part number on the sheet, 7180000N46, is this same weight and this same rating in black, so the choice between those two is purely the colour field: natural white for an indoor vessel where somebody wants to read the liquid line through the wall, black where the tank stands outdoors in daylight. Nothing else on the two sheets differs. What no sheet in this family carries is a stand: no legs, no skirt, no support ring, no bolt pattern. A cone bottom tank cannot stand on its own bottom, so that support is a separate item, specified and set before the tank arrives, and no stand height, rated load or stand material appears on this page because none is published. Work it out properly with the cone bottom tank stand compatibility matrix, and remember that your finished height is the stand plus 273 inches plus clearance above the manway, measured down from the lowest fixed thing over the spot. Settle the volume first with the tank sizing calculator and take the freeboard from the tank sizing guide.

Four part numbers on a seven and a half foot circle

Read this table as two questions rather than six products. The first question is the rating, and the top four rows answer it: one shell, four names, 2,100 pounds on the two standard listings and 2,800 pounds on the two heavy duty ones, with the colour field splitting each pair. Nothing about the footprint, the height or the pad changes across those four, which is why the decision can be made on the product you are storing alone. The second question is the shape, and the bottom two rows put it plainly. A 90 inch circle is seven and a half feet of floor, and this tank puts 6,500 gallons on it by going 273 inches up. 5280200N40 puts 6,000 gallons on a 142 inch circle by staying at 136 inches, and SII-5320100N43 puts 7,400 gallons on that wide circle at 160 inches. If your ceiling is the constraint, the wide shells are the only ones that go in. If your floor is the constraint, this narrow column is. The consequences follow the shape rather than the part number: a tall slender vessel needs a more carefully drawn foundation because the load arrives concentrated in a small circle, it stratifies more readily if the product wants to separate, and everything on top of it is a working-at-height job. A wide shell trades all of that for floor area you may not have. Since every tank in this family is a bulk vessel that people other than the buyer will have to read, settle the outside of it at the same time as the inside: the tank label and signage guide reconciles the different marking schemes that end up on one vessel.

Two rows look the same? The difference is the wall; call 866-418-1777 with the liquid and we will say which, or ask for a quote on both.

Air in at the top before product leaves at the bottom

• The vent: this sheet gives an 18 inch threaded vented manway, so the vent comes with the access rather than as a separate purchase. Get the order of operations right and the wall never has a bad day: air has to come in at the top at least as fast as liquid leaves at the bottom. Size the air path to the faster of your fill rate and your draw rate, keep it clear, and never blank, tape or paint it.
• The manway: 18 inches, threaded, at 273 inches plus the stand. Plan the platform or fixed ladder and the fall protection in the same drawing as the structure, and bring the fill to a coupling at working level rather than up the side of the tank. The sheet notes ladder lugs.
• The outlet field: it reads 1 Manway / Lid, which names an opening and not a discharge. We print the field as it reads and assert nothing beyond it. No outlet size, no thread, no bulkhead and no valve is published or claimed on this page. Tell us the line size and the product and we will confirm what this part number carries before it ships.
• The cone: published at 30 degrees, which keeps a free-flowing liquid moving toward the low point and will hold onto material that packs. If your product consolidates when it sits, say so when you enquire rather than after the first changeover.
• Structure the sheet does dimension: 4 tiedown lugs, 8 lifting lugs, ladder lugs and 2 flange lines. Use the lifting lugs on the day it is stood up and use the tiedown lugs to keep it restrained afterwards.
• Blanks and ratings: no inlet, no separate lid size, no warranty term, no NMFC number. The published ratings are a specific gravity of 1.5, 54,210 pounds of water at 6,500 gallons, 81,315 pounds of max contents and a service limit of 100 F / 37 C.

On a vessel this deep the level instrument is the only honest picture of what is in the top of it, and retrofitting the wrong one costs more than choosing well would have: the level gauge selection guide for chemical service compares the technologies on their failure modes. Where the tank will stand over a surface that has to be recovered after a spill, the Captor containment comparison belongs in the same conversation as the foundation.

Process water and blends that stay at water weight

This rating and this size land in the middle of ordinary plant life, which is exactly why the lighter listings outsell the heavy duty ones. Process and treated water holding that still has to drain fully, polymer and coagulant make-up at a water or wastewater works, liquid fertiliser and crop input blending at an agricultural retailer, batch preparation and intermediate storage in manufacturing, wash and rinse water systems emptied between runs, and day tank duty feeding a pump at a steady rate. What they share is a changeover, and the changeover is where a cone earns its keep: the vessel drains toward one point at 30 degrees instead of leaving a ring of product on a flat floor, so a product change is a rinse rather than an excavation. At 81,315 pounds of max contents there is plenty of margin over a water-weight product, and at 2,100 pounds empty this is also one of the easier tanks in the family to stand up on installation day, which matters more than it sounds when a machine has to be hired for it. The natural white shell is the indoor choice, where reading a liquid line through the wall settles arguments an instrument can start. Look your liquid up in our chemical compatibility reference before a gasket or a valve is specified.

Resin compatibility, line by line

Below are the liquids this resin is rated for, the concentration each rating holds to, and the fitting and gasket to specify. Check the exact concentration and temperature you run against the chemical page or the chemical compatibility database before ordering.

• details )
• Aluminum Sulfate (50%, PVC/EPDM)
• Calcium Chloride (40%, PVC/EPDM)
• DEF (32.5%, 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).Match the fitting and gasket material to your chemical - the wrong elastom
• Ethylene Glycol
• Ferric Chloride
• Ferric Sulfate
• Hydrofluosilicic Acid (Viton gaskets, not EPDM)
• Polyaluminum Chloride
• Potassium Carbonate
• Potassium Hydroxide
• Propylene Glycol (PP/316SS fittings), and
• Sodium Thiosulfate.The two glycols and the water-treatment coagulants Ferric Chloride and Polyaluminum Chloride are the most common misorders here, so confir

Twenty-one hundred pounds out of Nebraska

Lincoln, Nebraska is where this one is moulded and Nebraska is the origin state the sheet gives, which puts the central lanes on the short haul and both coasts on the long one. The freight class reads 300, a numeric class rather than a mode, and no NMFC number is published. Beside its own shellmates that is worth a glance, because the two heavy duty listings carry a different class figure on their own sheets and nothing printed anywhere explains why. Take the class on this sheet to the quote rather than to a theory. The shipping size measures 90 inches by 90 inches by 273 inches at 2,100 pounds, a long package rather than a heavy one, and the length is what governs the booking. Run your own ZIP through the freight cost estimator; the listed price is before freight. The tank travels lying down and somebody stands it up at your end, so nominate the machine and the person in advance rather than improvising on the day. The sheet publishes no crane, no rigging, no permit and no escort detail, and this page states none; agree the offload equipment and the delivery window with us before the truck is booked. Set, level and anchor the stand first, because a cone bottom tank with nowhere to stand is a tank lying in your yard occupying the space you needed. Sling under the body or use the lifting lugs the sheet lists, never the manway, and keep it restrained from the moment it is upright, because twenty-two feet of empty shell catches wind long before anyone expects it to. Then fill it with clean water, hold the 54,210 pound load, and read the manway seal, the cone joint, the stand feet and the ground around the pad in daylight before anything is connected. Chalk the full-water line on the outside after that first fill; it is the level every later reading gets checked against. Mark the vent and the outlet on the outside of the shell so nobody caps the wrong one in the dark.