Snyder Industries 4500 Gallon ASTM XLPE Heavy Duty Vertical Storage Tank

Chowchilla to the Mountain West at class 300

Where it is molded and how it rides are the first two facts about this tank. Chowchilla, California puts it on short lanes to the Valley, the Southwest and the Northwest, and the sheet rates the freight at class 300. Then the shape takes over the conversation, because 143 inches across is close to twelve feet: this is a wide load on a flatbed wherever it goes, the shipping size is 143 inches by 143 inches by 91 inches, and the receiving yard needs a clear approach and room to swing it off. The upside of that width is what happens at the site. At 91 inches tall it slips under a low roof, inside a low containment curb, and into a chemical room that a ten or thirteen foot tank cannot enter, and it does it while carrying the 1.9 rating on this sheet. The cost is pad. Full of water it puts 37,530 pounds down, and at the rating 71,307 pounds, all of it across a 143 inch circle with a rotationally molded floor bearing on the whole of it, so the slab is engineered per the concrete pad sizing guide, level and in full contact, with a berm sized to the tank where the liquid is regulated. A wide tank on a pad with one low corner puts its weight on that corner, which is the failure worth designing out. Check the volume against your draw in the tank sizing calculator and take the reserve and the freeboard from the tank sizing guide.

The 143 inch floor in four wall grades

This is the wall to take when the liquid is dense and the roof is low, and it is the reason the shell is worth 1,100 pounds of polyethylene where its shellmates are 900. The N29 is the white tank in the same mold rated 1.35 on its sheet, and the N32 and N33 are the black ones at that same rating, for a liquid sunlight degrades. There is also a lighter-rated white grade in this shell, rated as its own sheet says, and it is the right buy for anything inside that rating. Change the geometry instead and the 5210000N40 stacks 4,400 gallons on a 90 inch base at 182 inches for a narrow slab and a tall bay, while the 7000500N40 takes 4,600 gallons to a 120 inch base at 116 inches when 143 inches of floor is more than you have.

Neighboring size a better fit? Every row links to its own page; freight to your ZIP is quoted on each, or call 866-418-1777.

91 inches to the manway, and a ladder lug to get there

• Access: 18 inch threaded, vented manway at 91 inches. Seven and a half feet is a short climb: the ladder lugs on the sheet take a fixed ladder, and a person on a small platform can work the lid with both hands. Fill down a dip tube to the floor and run the vent outdoors, sized to the delivery pump, on anything that fumes.
• Outlet: the sheet gives the outlet field as 1 Manway / Lid, with no bottom fitting diameter, thread, material or gasket anywhere on it. The draw-off is confirmed at order against the liquid, not assumed here.
• Structure: eight lifting lugs, ladder lugs, one flange line on the sheet.
• Service limit: 140 F / 60 C.

A lid at 91 inches is the most workable manway in this size class, and on a tank holding something at the 1.9 end of the range that matters more than usual, because dense liquids are the ones you want to look at. Dipping is easy, the headspace band gets a light on it without a lift, and a gasket gets replaced by one person. What the low lid does not give you is head. With only seven and a half feet of liquid above the floor, a transfer pump has little suction pressure to work with and the last inches come out slowly, so set the pump below the level of the draw-off, keep the run to it short and straight, and fit a low-level cutout so it never pulls air. Whichever connection you confirm at order, the first valve stands on its own support off the pad, the link to hard pipe stays flexible, and in a freezing climate the valve and the first pipe run get the trace heat while the body is left to ice from the top down.

Dense liquid on a wide, low footprint

The buyer for this one has a height limit and a heavy liquid, which is a narrow but common corner: a coagulant tank in a water plant's low chemical bay, brine at a food plant under an existing mezzanine, a pickling or plating solution in a building with overhead crane rails, a scrubber liquor tank where the roof cannot be raised. The 1.9 rating and 71,307 pounds of allowed contents are the point of the part number, and whether a crosslinked wall is what your chemistry actually needs is argued out honestly in the crosslinked versus high density polyethylene comparison. A fire reserve is a separate specification with its own sizing and freeze discipline, set out in the fire-water reservoir design guide, and a heavy wall bought to hold water is wall you paid for and will never use.

1,100 pounds on a 143 inch shipment

It ships from Chowchilla, California shipping at 143 inches by 143 inches by 91 inches, as freight at class 300 as the sheet lists it, and the freight cost estimator prices the lane to your ZIP. The listed price is before freight. Nearly twelve feet of width is the whole logistics story: a wide load, an approach the truck can use, and a forklift with long forks or a telehandler on site. At 1,100 pounds it is not a heavy lift, but it is an awkward one, so straps go under the body and to the eight lifting lugs and never through the manway. Water-test it to the manway, hold it, watch the base and the pad edge, then drain and dry before the working liquid goes in. Because the floor is 143 inches across, walk the full circumference of the pad edge during that hold rather than watching one side of it. Once it is full and holding, leave it alone for a day before the plumbing goes on; a settled tank is a quiet one.