Snyder Industries 6500 Gallon XLPE Heavy Duty Cone Bottom Tank

Colour and rating: the two fields that move in this quad

Take the four 6,500 gallon listings in front of you and cross out everything they share, because it is nearly everything: the same 90 inch circle, the same 273 inch height, the same 30 degree cone, the same 18 inch threaded vented manway, the same 54,210 pounds of water, the same 100 F / 37 C limit, the same material field. What is left is two columns. One is weight and rating: this tank and 7180000N42 are 2,800 pounds at a specific gravity rating of 1.9 with 102,999 pounds of max contents, while 7180000N40 and 7180000N46 are 2,100 pounds, each carrying its own lower rating and its own lower max contents figure on its own sheet. The other is colour: this tank and 7180000N46 are black, the other two are Natural White. So the reason to buy this particular listing is a product denser than water in a vessel that will stand where the sun reaches it. That is the pairing black and 1.9 gives you, and it is the ordinary outdoor bulk chemical case: a tank farm, a yard, a pad beside a loading point, holding something heavy. A natural white shell in that position is chosen for a different reason, which is being able to read a level through the wall, and it is normally an indoor argument. Neither the weight difference nor the colour difference is explained anywhere on these sheets, and no wall thickness, layer count or construction difference is printed, so none is stated here. What is also not printed is a stand. No legs, no skirt, no support ring and no bolt pattern appear on this sheet, and a cone bottom tank has no flat bottom to stand on, so the structure under it is a separate purchase with its own drawing and lead time. No stand height, rated load or stand material is given on this page for that reason. Take that question to the cone bottom tank stand compatibility matrix and confirm the fit with us against the part number. Underneath it all, the pad carries 2,800 pounds of empty tank, 54,210 pounds of water and 102,999 pounds at the rating through the feet of a stand inside a 90 inch circle rather than spread across a slab, which is why a cone foundation is engineered ground with a designed bearing area at each foot. Settle the volume first with the tank sizing calculator and the freeboard with the tank sizing guide.

One shell, two weights, plus a squat neighbour

Four rows are one tank and two rows are a different way of holding roughly the same volume. That is the whole table. This shell is the tall option: 6,500 gallons standing on a 90 inch circle at 273 inches, which is seven and a half feet of floor and twenty-two feet nine inches of height. The two wide rows go the other way. 5280200N40 holds 6,000 gallons at 136 inches on a 142 inch circle and weighs 1,100 pounds; SII-5320100N43 holds 7,400 gallons at 160 inches on that same circle and weighs 1,600 pounds. Neither shape is better in the abstract and the argument is nearly always settled by the site. A tank farm on open ground with room to spread will take the wide shells and find them easier to climb, easier to support and easier to restrain. A congested plant yard, a bunded area with fixed walls, or a spot between two buildings will take the narrow column because there is nothing else it can take. What the narrow column also gives you, and this is the part people forget until the freight quote arrives, is a smaller footprint to bund, a smaller pad to pour and a smaller area to keep clear. What it costs is height: everything on top is a working-at-height job, the wind load on an empty shell is real, and a tall vessel stratifies more readily if the product wants to. On the material question, if you are still weighing the resin rather than the shape, the honest comparison is here: crosslinked polyethylene against high density polyethylene for chemistry duty says when the crosslinking matters and when it is beside the point.

Need the taller or the wider one? Every row links to its page with freight to your ZIP on each; 866-418-1777 will check the ceiling and the pad.

The lid, the vent that comes with it, and the outlet field

• The lid and its vent: the access this sheet publishes is an 18 inch threaded vented manway, and the vent is part of it rather than a separate item. On a tank standing outdoors that vent also sees the weather, so it goes on the inspection round: clear it, look at it whenever the tank is opened, and never blank, tape or wrap it, whatever the reason sounds like at the time.
• No separate lid size field: this sheet publishes none, and none is claimed. The manway line above is the whole of what it gives for access.
• The outlet field: it reads 1 Manway / Lid. That names an opening rather than a discharge, and we print it exactly as it reads. No outlet dimension, no thread, no bulkhead and no valve is published on this sheet or asserted here. Give us the line size you need to land, the valve type and the product, and we will confirm what this part number carries before it is ordered.
• What hangs below the cone: the valve, any reducer and the first length of pipe belong on steelwork off the stand and never on the tank, with a flexible connector at the first joint so pump vibration stays out of the wall. There are 102,999 pounds of rated contents standing above that joint when the tank is full.
• Lugs: 4 tiedown lugs and 8 lifting lugs are listed, with ladder lugs and 2 flange lines. Outdoors the tiedown lugs are not a detail; a restrained tank stays where you put it through the first storm after installation.
• Blanks and ratings: no inlet, no warranty term and no NMFC number are published. The ratings given are a specific gravity of 1.9, 54,210 pounds of water at 6,500 gallons, 102,999 pounds of max contents, a 30 degree cone and a limit of 100 F / 37 C.

Because this shell is usually bought for outdoor duty, two more things belong in the same plan. What holds the spill: the Captor containment comparison sets the contained polyethylene route against the alternatives before a bund is poured. And how the contents are read from the ground: the level gauge selection guide compares radar, ultrasonic, hydrostatic and magnetostrictive on the failure modes that matter in the weather.

Heavy chemistry standing outdoors in daylight

Black shell, 1.9 rating, 102,999 pounds of max contents: that combination is bought for bulk chemical duty on a pad rather than for anything delicate indoors. Concentrated mineral and salt solutions held between deliveries, heavy liquid fertiliser and crop input blends at an agricultural retailer, spent liquor and pickling solution at a metals plant, thickened sludge and dewatering feed at a treatment works, mineral and wash plant slurry, and process intermediates carrying solids that still have to drain completely between runs. The 30 degree cone is the reason each of those works in a polyethylene vessel: nothing settles into a corner the tank cannot reach, and the changeover is a drain and a rinse rather than a shovel and a skip. At 6,500 gallons that distinction is the difference between a morning and a week. Two cautions belong with the shape rather than the listing. A column this tall stratifies if the product wants to, so plan the draw point and the mixing arrangement together. And the service limit is 100 F / 37 C, which is a real number on a black tank in an open yard in summer, so think about where the sun sits over the spot before the pad is poured. Whatever the liquid is, check it in our chemical compatibility reference first, because the gasket and the valve follow the chemistry and not the vessel.

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 fittings, EPDM gaskets
• Calcium Chloride 40% - PVC fittings, EPDM gaskets
• DEF (diesel exhaust fluid) 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
• Hydrofluosilicic Acid 26% - PP/PVC fittings, Viton gaskets
• Magnesium Chloride 30% - PVC fittings, EPDM 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 Carbonate 30% - PVC fittings, EPDM gaskets
• Sodium Thiosulfate 40% - PVC fittings, EPDM gaskets
• Urea Solution 50% - PP/PVC fittings, EPDM gaskets

A twenty-two foot shipment at twenty-eight hundred pounds

The shipment is the headline on this one: 90 inches by 90 inches by 273 inches at 2,800 pounds, which is twenty-two feet nine inches of package on a trailer. Length governs the booking, not weight, and that is why a tank this light rides on a larger ticket than people expect. It is moulded at Lincoln, Nebraska, with Nebraska given as the origin state, so the plains and the Midwest are the short lane. The freight class reads 250, a numeric class rather than a mode, and no NMFC number is published; the two lighter listings on this shell read 300, and the sheets offer no account of the difference. Price the lane to your ZIP with the freight cost estimator; the listed price is before freight. The tank travels lying down and is stood up at your end, and that operation wants a nominated machine, a nominated person and a clear circle of ground rather than a decision taken in the yard while the driver waits. The sheet publishes no crane, no rigging, no permit and no escort detail, and none is stated here; agree the offload equipment and the window with us before the truck is booked. Set, level and anchor the stand before the trailer arrives. Lift by the lifting lugs the sheet lists or under the body, never by the manway, and get the tiedowns on as soon as it is upright. Prove it with clean water before product: hold the 54,210 pound load, walk the manway seal, the cone joint, the stand feet and the pad edge with a torch, and leave it standing full overnight. A photograph of the tank standing full on day one, filed with the paperwork, settles every later argument about whether something has moved. A strap that is checked once a season is a strap that holds; put it on the same calendar as the gutters.