Snyder Industries 3900 Gallon Cone Bottom Tank

Eleven hundred pounds down a long lane

One plant makes this tank and that is the freight picture in a sentence: Lincoln, Nebraska, with Nebraska given as the origin state on the sheet, short into the plains and the Midwest and long to either coast. Quote the lane before you settle the capacity, because at this size the movement is a project rather than a line item. The sheet gives the freight class as 300, a numeric class and not a mode, and publishes no NMFC number, so the booking is made on the class and the shipment. That shipment is 90 inches by 90 inches by 180 inches at 1,100 pounds, which is the lightest of the 3,900 gallon listings and fifteen feet long on the deck. Light helps at both ends of the lane, and it helps most on the day: a lighter shell is easier to stand up, needs less machine at the offload, and is kinder to a yard with a soft approach. It also creates the one hazard people underestimate, because a large light empty vessel moves in wind well before anybody expects it to. Keep it strapped on the trailer and strapped on the ground. No crane, rigging, permit or escort detail is published on this sheet and none is stated here; agree the offload equipment with us before the truck leaves the plant, and price your own ZIP with the freight cost estimator, since the listed price is before freight. The structure does not travel with the tank. A cone bottom vessel has no flat bottom and cannot stand on its own, and this sheet publishes no stand, no legs, no skirt, no ring and no bolt pattern, so no stand height, rated load or stand material appears here. Settle it early with the stand compatibility matrix, and design the foundation to the loads the sheet does give: 1,100 pounds of empty tank, 32,526 pounds of water and 48,789 pounds at the rating, concentrated into stand feet inside a 90 inch circle. Size the volume first with the tank sizing calculator and take the freeboard from the tank sizing guide.

The 3900 shell read by weight rather than by volume

Ignore the gallons column for a moment and the table says something more useful. Three rows on the same 90 by 180 inch shell are listed at 1,100 pounds and one at 1,400 pounds, and then 5180000N40, which holds two hundred gallons more in a taller shell, is listed at 1,000 pounds, lighter than any of them. Empty weight in this family does not track volume, and anyone choosing by size alone ends up in the wrong row. The sheet explains none of it, and this page prints the figures rather than offering a theory. What you can decide on is the rating. This listing is 1.5 with 48,789 pounds of max contents, and that is the right specification for product no denser than water, which is most process water, most blended liquids and much of what a plant actually moves. Take the heavier listing only when the product genuinely calls for it. The row that changes the building rather than the specification is 8050000N40: 3,600 gallons on a 102 inch circle at 125 inches and 1,090 pounds, ten feet five inches tall against this tank's fifteen feet. If the roof, the crane rail or the approach decides your purchase, that is the row to look at, and the price of it is floor area, since a wider circle wants a bigger pad, a bigger bund and a wider aisle around it.

Height or floor the limit? The table has both shapes; freight to your ZIP is quoted on each row, or call 866-418-1777 with the site.

Eighteen inches of opening at the top of a fifteen foot tank

• The opening: an 18 inch threaded vented manway is the only opening this sheet publishes, and everything goes in through it. Eighteen inches takes a fill line comfortably and allows an inspection, and it sits at 180 inches plus the stand, which is well above head height in any installation.
• Reaching it: platform, fixed ladder and a fall protection plan designed with the structure and not after it. Then take the filling away from the ladder entirely: land the fill at a coupling at working level and run a fixed line to the manway so nobody climbs to fill a tank.
• Breathing: the vent arrives with the manway on this sheet. Air has to come in at the top as fast as liquid leaves at the bottom, so size the arrangement to the faster of your fill and draw rates, keep it clear, check it whenever the tank is open, and never blank or tape it to control a smell.
• The outlet field: it reads 1 Manway / Lid, which names an opening and not a discharge. That is printed here as it reads, with no outlet size, thread, bulkhead or valve claimed. Give us the line size, the valve type and the product and we will confirm what this part number carries before it is ordered.
• The cone: no cone angle field on this sheet, no angle in the product name, so none is stated and none is guessed. Anything below the cone is carried on its own steelwork off the stand with a flexible connector at the first joint, never hung on the tank.
• Absent from the sheet: no inlet, no lug or lifting detail, no warranty term, no NMFC number. Ratings are a specific gravity of 1.5, 32,526 pounds of water at 3,900 gallons, 48,789 pounds of max contents and a limit of 100 F / 37 C.

Two decisions are worth making before the tank stands up. The instrument, because at fifteen feet nobody reads a level by eye: the level gauge selection guide for chemical service compares the options on failure rather than on features. And the markings, because a bulk vessel is read by people who did not order it and by inspectors who arrive unannounced: the tank label and signage guide sets out how the schemes are reconciled on one tank. Where containment is part of the design, the Captor containment comparison is the honest place to start.

Process water, blends and buffer volume between two stages

A 1.5 rating at 3,900 gallons in a narrow footprint is ordinary plant duty done properly. Process and treated water holding that still has to drain fully, liquid fertiliser and crop input blending at an agricultural retailer, batch make-up and blending in manufacturing, polymer and coagulant preparation at a water or wastewater works, food and beverage duty where the vessel is emptied and washed between products, and buffer volume sitting between two stages that run at different rates. The cone is what makes the changeover quick rather than what makes the run better, which is exactly why people who have only used flat bottomed tanks underrate it: the vessel keeps draining to one low point, so cleaning is a rinse instead of a job. Name the liquid when you enquire and check it in the chemical compatibility reference first, because the gasket and valve answer follows the chemistry and not the tank.

Listed chemical service for this shell

The maker's list for this resin: each liquid, the concentration it is rated to, and the fitting and gasket that go on the order. Verify your own service on the linked page or in the chemical compatibility database before ordering.

• Aluminum Sulfate at 50% (PVC, EPDM)
• Calcium Chloride at 40% (PVC, EPDM)
• DEF at 32.5% (316 stainless fittings, EPDM)
• Ferrous Sulfate at 20% (PVC, EPDM)
• Magnesium Chloride at 30% (PVC, EPDM)
• Sodium Carbonate at 30% (PVC, EPDM)
• Urea Solution at 50% (PP/PVC, EPDM), and Ozonated Water up to 10 PPM (PVC, EPDM, reference chart on request).Note the two exceptions to the usual PVC har
• Ethylene Glycol
• Ferric Chloride
• Ferric Sulfate
• Hydrochloric Acid (Viton gaskets)
• Hydrofluoric Acid (Viton)
• Hydrofluosilicic Acid (Viton)
• Hydrogen Peroxide (Viton)
• Peracetic Acid (316 stainless, Aflas)
• Phosphoric Acid (Viton)
• Polyaluminum Chloride
• Potassium Carbonate
• Potassium Hydroxide
• Propylene Glycol
• Sodium Bisulfate
• Sodium Bisulfite
• Sodium Hypochlorite (Viton)
• Sodium Thiosulfate
• Sulfuric Acid (CPVC, Viton), and
• Zinc Orthophosphate.If your service fluid is on this list, ask for the Snyder 1.5 SG cone-bottom equivalent - call 866-418-1777 and we will spec it before you

The lightest shipment in the 3900 family

At 1,100 pounds this is the lightest of the 3,900 gallon listings, shipped 90 by 90 by 180 inches out of Lincoln, Nebraska at class 300 with no NMFC number on the sheet. Light is an advantage everywhere except in wind, and wind is the thing that catches people out on a delivery of this shape, so keep the vessel strapped on the trailer and strapped again on the ground until the moment it is standing and restrained. No crane, rigging, permit or escort detail is published and none is stated here; settle the handling with us beforehand, and note that this sheet lists no lifting lugs, so take the load under the body rather than assuming an attachment point exists. The stand must be set, levelled and anchored before the truck arrives. After that, commission with clean water and nothing else: hold the 32,526 pound load, read the manway seal, the cone joint, the stand feet and the ground around the pad, and leave it standing full overnight before a drop of product goes in. Write the intended contents on the shell before that first product fill. A tank that is unlabelled on day one is unlabelled for years, and the person who eventually opens the manway will not be the person who ordered it. The vent screen is the cheapest part on the tank and the one that saves it; look at it every time the manway opens.