Snyder Industries 4100 Gallon XLPE Heavy Duty Cone Bottom Tank

Dense duty outdoors, where daylight is not welcome in the tank

The plants that buy this part number are usually storing something heavy in a place with no roof over it. That is the whole specification in a sentence, and both halves of it are on the sheet. The weight half is the 1.9 rating with 64,969 pounds of max contents in a vessel holding 34,194 pounds of water: a liquid half again as heavy as water fills this tank rather than half of it. The light half is the black wall, which stops daylight at the shell and takes the seasonal growth problem out of water-based product standing in the open, as well as protecting anything that degrades in light. Typical duty is outdoor bulk storage at agricultural retail, treatment chemistry on a pad at a water or wastewater works where there was no building to put it in, recovered or recycled process liquid outside a manufacturing plant, and wash water systems that ran out of room indoors. What you give up is the level reading through the wall, and on a 197 inch column that is a genuine loss, so the instrumentation belongs on the same order as the tank rather than on a later one. Then the ground, which is where cone installations are lost. There is no flat floor on this vessel; it cannot stand on its own bottom, and this sheet publishes no stand, no legs, no skirt, no support ring and no bolt pattern, so the stand is a separate item with its own lead time and no height, rated load or material for one is printed here. What the sheet does give the engineer is the envelope and the loads: 197 inches of shell above whatever holds it, 1,500 pounds of empty tank, 34,194 pounds of water and up to 64,969 pounds of rated contents landing on a few stand feet inside a 90 inch circle instead of spreading over a slab. Fix the volume with the tank sizing calculator, set the freeboard from the tank sizing guide, and settle the support against the cone bottom tank stand compatibility matrix before a part number is fixed.

How the four 4100 listings differ, in the sheet's own figures

Take the top two rows first, because between them the sheet changes exactly one field. This tank and 5180000N42 are both 4,100 gallons, both on the 90 by 90 by 197 inch shell, both 1,500 pounds, and the difference on paper is black against natural white. Choose on light and nothing else, and pick the level instrumentation to suit whichever you take. Rows three and four are the 1,000 pound pair, and they carry the same colour choice at the lighter weight. The usable distinction is the rating: this listing is the 1.9 one with 64,969 pounds of max contents, so it is the column to read when your product is heavier than water, and the lighter pair is the right column when it is not. The sheet gives the weight difference as a figure and explains nothing about it, so nothing is explained here either. The last two rows move the height rather than the grade, and on the same 90 inch circle throughout: 5440000N40 holds 3,900 gallons in 180 inches, which is the one to price when a low roof is the binding constraint, and 5200000N42 holds 4,400 gallons in 200 inches for when a delivery no longer fits in 4,100. Because the circle is constant across every row, your floor plan does not change between them and the only real trade is height against gallons. Where the crosslinked wall itself is what you are weighing, our read on XLPE against HDPE for chemistry duty covers where crosslinking earns its place.

Torn between two rows? Call 866-418-1777 with the liquid and the ceiling height, or ask for a quote on both and compare the freight.

From the cone down: valve, line and the load above them

• Start at the discharge, because on a cone bottom tank it is the lowest point of the vessel and everything else is arranged around it. The outlet field on this sheet reads 1 Manway / Lid, which names an opening rather than a discharge, and it is printed here exactly as written. No outlet dimension, thread, bulkhead or valve is published, so none is stated. Tell us the line size, the valve type and the product and we will confirm what 5180000N48 carries before it is ordered.
• What the low point carries: up to 64,969 pounds of rated contents stands above it when the tank is full. Nothing down there should be supported by the tank. Take the valve, any reducer and the first length of pipe on steelwork off the stand, and break the line with a flexible connector before the pump so vibration stops at the joint.
• Dense liquid at the suction: a 1.9 rated product moves differently from water. Size the pump on the actual weight per gallon rather than on the gallon figure, keep the run short and straight off the cone, and expect the tail of a dense batch to be slower than the head of it.
• Cone angle: this sheet publishes no cone angle field, and the product name carries none, so no angle is stated. If the angle is decisive for your product, ask us to check the part number rather than reading it off a photograph.
• Access on top: an 18 inch threaded vented manway at the top of 197 inches of shell plus the stand, with the vent arriving as part of the manway rather than as a separate specification. Keep it clear. A vessel being pumped down that cannot take air in takes the load in its own wall instead.
• Absent from this sheet and therefore from this page: the inlet, the lid size, any lug or flange count, the warranty term and the NMFC number. Present: a specific gravity of 1.9, 34,194 pounds of water at 4,100 gallons, 64,969 pounds of max contents and a service limit of 100 F / 37 C.

A black wall shows you nothing about the level, so on this listing the gauge is part of the tank purchase rather than an accessory to it: the level gauge selection guide for chemical service compares radar, ultrasonic, hydrostatic and magnetostrictive on a tall narrow vessel carrying a dense liquid. Where the tank stands over ground, a floor or a drain that would have to be recovered after a release, the Captor containment comparison answers containment on its own terms.

Outdoor dense-product storage with a full drain

Three things have to be true before this is the right part number, and when all three are true nothing else in the family competes with it. The product weighs more than water, so the 1.9 rating and 64,969 pounds of allowed contents are doing real work against a vessel that holds 34,194 pounds of water. The tank stands where daylight reaches it, or the contents react to light, so the black shell is the wall you want. And the vessel has to come down to empty between batches, which is what the cone is for. Put those together and you get outdoor bulk storage at agricultural retail through a season, treatment chemistry standing on an open pad at a water or wastewater works, dense recovered liquid outside a manufacturing plant, and brine or concentrate holding where a building was never an option. The full-drain argument is worth more here than on a light product, because dense material left behind in a flat bottomed tank is heavier, usually more valuable and more expensive to get rid of. Two cautions that belong on the page rather than in a phone call. The published service limit is 100 F / 37 C, and a black tank in open sun is precisely the installation where that figure stops being theoretical, so tell us where it is going. And a 197 inch column on a 90 inch circle stratifies more readily than a wide shallow vessel, so if your product separates when it stands, the draw point and the mixing arrangement matter more than the capacity does. Take the liquid through our chemical compatibility database first, because the gasket and the fitting material follow the chemistry rather than the capacity.

Chemical service ratings

The resin is rated for the liquids below at the concentrations shown; the fitting and gasket called out are the ones to order with the tank. Verify the exact service on the linked page or in the chemical compatibility database before ordering.

• 60% )
• aluminum sulfate 50%
• calcium chloride 40%
• DEF 32.5% (diesel exhaust fluid)
• ethylene glycol 100%
• ferric chloride 50%
• ferric sulfate 60%
• ferrous sulfate 20%
• hydrofluosilicic acid 26%
• magnesium chloride 30%
• polyaluminum chloride
• potassium carbonate 50%
• potassium hydroxide (saturated)
• propylene glycol
• sodium carbonate 30%
• sodium thiosulfate 40%
• urea solution 50% and ozonated water up to 10 PPM.

Fifteen hundred pounds of black shell out of Lincoln

Moulding is at Lincoln, Nebraska and the sheet gives Nebraska as the shipping state, which puts the plains and the Midwest on the short lane and both coasts on the long one. The class reads 300 next to an LTL ship mode, and no NMFC number is published on this sheet. The envelope is 90 by 90 by 197 inches at 1,500 pounds, a light load taking a lot of trailer, and that is why large moulded tanks price on the space they occupy rather than on the scale ticket. Take the lane figure for your own ZIP from the freight cost estimator; the listed price is before freight. Delivery is on its side and the tank is stood up at your end. This sheet publishes no lifting lugs and no tiedown lugs, so do not plan a lift around hardware it does not list: lift under the body, keep every strap and hook off the manway, and agree the method with us in advance. No crane, rigging, permit or escort detail is published either, so none is described here; settle the offload equipment and the window before the truck is booked rather than on the morning. The stand goes in first, set, levelled and anchored. Then prove the installation with clean water rather than product, hold the 34,194 pound load, and walk the manway seal, the cone joint, the stand feet and the pad edge in that order. Do that inspection in daylight with a torch under the cone, because a black shell will hide a weep for weeks that a translucent one would have shown you on the first afternoon. The first fill is the only cheap time to find a problem, so do it in daylight with someone watching the base.