Snyder Industries 1650 Gallon 30 Degree HDPE Cone Bottom Tank in White

A squat cone that fits under a low roof

Site this one where the ceiling is the problem. At 94 inches the tank itself is under eight feet tall, which is the number that gets a cone bottom vessel inside an existing building instead of into a new one. Add the stand, which this sheet does not publish and which you specify separately, and you still have a working height that most process bays, barns, pump houses and mixing rooms can carry, where a tall narrow cone of the same volume would need the roof taking off. The price of that is floor: 86 inches across is a seven foot circle plus the stand's own spread and the room to walk around it. Give it a flat, continuous, level bearing across the whole stand footprint, poured and cured before the tank arrives, because the loads are real. The sheet gives 300 pounds empty, 13,761 pounds full of water and 26,146 pounds at the rating, and every pound of it runs through the stand into the ground. The wide, low shape has a second advantage that is easy to miss at the survey and obvious a year later: the manway, the fill and any top-mounted device are all within reach of a short platform rather than a fixed ladder and a fall arrest plan, which changes what routine maintenance costs for the life of the vessel. Where the tank stands over a floor or a yard that would have to be recovered after a release, the Captor containment comparison sets the contained polyethylene route against the alternatives on the points that decide it. Before the structure is designed around the tank, run the batch volume and turnover through the tank sizing calculator and take the freeboard a warming or gassing product needs from the tank sizing guide.

Three sixteen fifties at one size, plus the 1600 and the 2000

Four listings on this sheet hold 1650 gallons on an 86 inch circle 94 inches tall at 300 pounds, and the sheet separates them by name and part number and by nothing else that we can see. We print what it says and we do not invent a difference; order the part your engineer, your installer or your existing plant record already names, because matching a part number costs nothing and arguing about one at commissioning costs a day. The other two rows are where a real choice lives. The 1600 gallon 8330000N42 holds fifty fewer gallons on a 95 inch circle only 72 inches tall at 277 pounds: nine inches wider, twenty-two inches shorter, and the tank to take when the roof is the constraint and the floor is not. The 2000 gallon 5070000N40 goes the other way, 90 inches across and 102 inches tall at 325 pounds, buying a few hundred more gallons for eight more inches of height on a slightly smaller circle. Put those three side by side and the pattern is clear: across this size band you are trading diameter against height at almost constant weight, and the decision is made with a tape measure at the site rather than from a catalogue. Measure to the lowest obstruction, add the stand height you have been quoted, and then pick the row that fits.

Other makers in the running? 866-418-1777 will compare them honestly; Norwesco, Snyder, Chem-Tainer, Enduraplas and Bushman are all here, or price freight on this one.

Discharge below, a 10 inch opening above

• The discharge: no outlet size and no bulkhead is published on this sheet. The cone ends in a discharge and the sheet does not dimension it, so this page prints no number. Tell us the line size, the valve and the product, and we will confirm what this part number carries before it is ordered.
• Carrying the valve: the valve, any reducer and the first length of line ride on their own support off the stand, not on the cone. With 26,146 pounds of rated contents above it, the discharge joint is the last place to hang hardware.
• Angle and flow: the name gives 30 degree and the sheet gives no angle field. A shallower cone drains a free-flowing liquid cleanly and holds onto material that packs, which is a genuine consideration on a solids-bearing product. The cone bottom buyer's guide on cone angle selection sets the angles against each other on the terms that decide it.
• Access: the lid and manway field reads 10 inches, which is the only opening published on this tank. Ten inches takes a fill hose, a lance and a dip tube; it does not take a person, so any internal cleaning routine is planned around a lance and water before the first batch, not after a product change.
• Venting: this sheet does not describe the opening as vented and lists no breather. A tank being drawn from the bottom needs an air path or the wall takes the load, so specify the venting arrangement with the order rather than discovering it on a hot afternoon.
• Limits and the stand: 120 F / 48 C, a specific gravity rating of 1.9, 13,761 pounds of water and 26,146 pounds of max contents. There is no stand and no warranty term on this sheet; the stand is a separate item to specify alongside the tank.

Name the product when you order. Fitting material, gasket and valve selection on a cone discharge all follow the chemistry, and on a vessel holding this much the expensive part of getting it generic is never the fitting itself.

Where a shallower cone still empties clean

A 30 degree cone at this volume is bought for duties where the product flows reasonably and the vessel still has to empty properly: liquid fertiliser and crop input blending at an ag retailer, mixing and batching in a chemical plant, coagulant and polymer make-up at a water or wastewater works, wash plant and mineral process water carrying light solids, food and beverage holding where a clean drain-down between products is the whole requirement, and any process that changes product in the same vessel every few days. The shallower angle is what keeps the tank short enough to live indoors, and for a free-flowing product it gives away very little in return. Where the product packs, thickens or bridges, say so when you enquire, because the honest answer may be a steeper cone in a taller building rather than this tank in the one you already have. We would rather send you to the right shape than sell you the convenient one.

Rated liquids and the fittings to order with them

The resin carries a rating for each liquid below at the concentration shown, and each line names the wetted fitting and gasket to specify. Confirm the service you actually run on the chemical page or in the chemical compatibility database before ordering.

• Acetic Acid
• Aluminum Sulfate
• Calcium Chloride
• DEF
• Ethylene Glycol
• Ferric Chloride
• Ferric Sulfate
• Ferrous Sulfate
• Hydrochloric Acid
• Hydrofluoric Acid
• Hydrofluosilicic Acid
• Hydrogen Peroxide
• Magnesium Chloride
• Peracetic Acid
• Phosphoric Acid
• Polyaluminum Chloride
• Potassium Carbonate
• Potassium Hydroxide
• Propylene Glycol
• Sodium Bisulfate
• Sodium Bisulfite
• Sodium Carbonate
• Sodium Hypochlorite
• Sodium Thiosulfate
• Sulfuric Acid
• Urea Solution
• Zinc Orthophosphate

Two plants, LTL, and 300 pounds shipped

This part is moulded at Chowchilla, California and Lincoln, Nebraska, and the sheet lists California and Nebraska as the states it ships from. Two plants on opposite halves of the country is worth asking about before you compare rates, because the lane, not the tank, is the variable. The freight class is given as LTL, a mode rather than a numeric class, under NMFC 156600-01, and the shipping weight matches the tank at 300 pounds. Price the lane to your ZIP with the freight cost estimator; the listed price is before freight. An 86 inch circle does not go through a standard door, so the route from the truck to the tank position is walked before the delivery is booked and not on the morning. Keep it on the pallet and out of the wind until the stand is anchored, lift it by the body with slings, and never take the weight on the 10 inch opening. Once it is standing, fill it with clean water, hold that 13,761 pound load, and read the cone, the opening, the stand feet and the slab before anything else goes in it. Photograph the tank full on day one and keep the picture with the file; it is the baseline every later inspection is measured against. Put the tank's part number on the maintenance log the day it lands; five years on, nobody remembers which shell it is.