6502 Gallon Vertical Liquid Storage Tank

Strapping a narrow column that stands taller than the building

Everything about siting this tank comes out of one ratio: 196 inches of shell on a 102 inch base. That is the most volume this family will put on that small a floor, it is the reason somebody buys this record instead of one of the wide ones, and it is also why the restraint matters more here than anywhere else in the range. Deal with the anchors first and the plumbing afterwards. Band the shell to a wall, a structural frame or ground anchors before the first fill, use two bands outdoors, put them where they cannot creep down a tapering shoulder, and pull on both by hand once the tank has been full once and settled. Pipework is not restraint; a rigid line run between a fixed header and a tank that moves as it fills breaks the fitting rather than the wall. Underneath, build for continuous contact across the whole 102 inch circle, because all 81340 lb at the maximum contents figure this sheet publishes lands inside that circle and the moulded floor carries on what it touches and nothing else. A flat slab, a steel deck plate, or a compacted and screeded bed with a retained edge, level across the full span rather than level at the rim with a dip in the middle. No rails, no pallet, no shim under one side. Give it a fall away from the tank and leave working room at the outlet. Then measure the height twice, at the final position and at the lowest beam, door head or cable tray on the path in, because 196 inches upright is a different measurement from 196 inches lying on a trailer and the difference is discovered at the worst possible moment. The framework for detailing the base properly is in the concrete pad sizing guide, and it applies to a gravel bed and a steel deck as much as it does to concrete. The one real dividend of all that height is what it does downstream: a column this tall gives a lot of standing head over the outlet, which is worth more on a feed or transfer duty than the floor space it saves. Before the shape is fixed, run 6502 gallons against your genuine draw in the tank sizing calculator and take the freeboard from the tank sizing guide.

The tall eight and a half foot circle against the wide ones

Four of these records are the same tall shell and the sheet separates them by colour and by weight: this natural white one at 1337 lb crated, the black 47884 at 1490 lb, the black heavy duty 47620B at 1700 lb, and the blue N-47620, for which this sheet gives a height of 196 inches and no footprint or weight at all. The cell above says so rather than being filled in from a neighbour. The heavy duty records are the ones to ask about when the liquid is dense or the service is hard; this record is the standard-weight white one, and the white wall is what lets somebody read a level from the ground on a shell nobody wants to climb twice a day. Step away from that group and the comparison becomes a shape argument instead of a colour one: the 40224B holds 6500 gallons on a 119 inch base at 150 inches, and the 42883 holds 7800 on the same wide base at 176 inches and 1803 lb. Both want considerably more floor and considerably less roof. The complete buyers guide to this tank takes the same list further.

Not sure which one? Tell us the liquid, the site and the ceiling height at 866-418-1777, or request a written quote with freight to your ZIP.

The reducer at the base decides the pump

• The outlet leads because it is the only plumbed connection the sheet names: a 3 inch polypropylene female NPT bulkhead fitting with a 2 inch reducer at the base. The bulkhead through the wall is three inches; what the assembly presents to your pipe is two.
• That is the number to design to. A pump and a suction line sized to the three, then throttled by the reducer a hand's width away, is the commonest way a bulk tank turns out slower than the drawing said it would be.
• Make the joints up once with the right sealant and put a union immediately downstream. With a reducer there are already two joints near the shell, and every future valve change should happen without a wrench ever loading the bulkhead itself.
• A 196 inch column gives the best standing head in this part of the range. Mount the pump below the base on its own footing with a short falling suction run and it stays flooded practically to the end of a draw; mount it level with the outlet and the last part of the tank becomes a prime problem every cycle. Fit a low-level cut-out regardless.
• That head is also a load on the fitting. Keep the first joint flexible, carry the first valve on its own bracket off the pad, and let the tank move as it fills without any of that movement reaching the thread.
• Access is a 16 inch threaded vented manway with the lid size field agreeing at 16 inches, at the top of a shell 196 inches tall. A fixed ladder or a platform is part of this install, not an afterthought; it is the item most often skipped on a tall tank and the reason inspections quietly stop happening.
• The vent is in that manway lid and it is the only air path the shell has. Pull liquid out of a tall narrow tank against a blocked vent and it pulls its own wall in and does not recover. Check it whenever the lid is off and replace a damaged one before the next draw rather than after it.
• The sheet names no inlet, so the fill goes in through the manway. Run a fill line up the outside and down inside the shell to a coupling at working height, and keep the ladder for inspection rather than for daily filling.

The service limit the sheet publishes is 120 F / 48 C. The warranty field on this record reads only "3 Year", with none of the detail some sheets in this family carry, so ask us and we will get Norwesco's current terms in writing rather than filling the gap ourselves. In a space where machinery moves, put something solid between the traffic and the base. The shell will take a knock; the bulkhead at the bottom of a 196 inch column will not.

Where the floor is spoken for and the roof is not

This shell is bought for buildings and yards where the square footage ran out before the volume did: bulk storage in a plant with equipment on every wall and one clear corner; process water and dilution make-up beside a line that runs continuously; standing reserve in a pump house or tank farm where the tanks stand shoulder to shoulder; irrigation or stock water where the pad is a small poured square and the yard belongs to vehicles; wash-down supply at a shop with a hard stand and no room to spare; collection and buffering in a reuse arrangement, where the industrial water reuse topology guide sets out which stage a vessel this size belongs to and what has to sit on either side of it. Where the tank is a reserve that has to be there on the worst day of the year rather than a supply that turns over every week, read the fire-water reservoir design guide before the size is fixed, because standing volume and usable volume are not the same number and only one of them turns up when it is wanted. The sheet gives a specific gravity rating of 1.5 with the rating text "1.5 (Max 12.52 lbs/gal)" and a maximum contents figure of 81340 lb, and nothing further about contents is claimed here.

Albertville, Alabama, and one lane out

One plant is named on this record, Albertville, Alabama, and Alabama is the single ship-from state it gives. A one-plant record makes the lane a real part of the decision rather than a footnote: the southeast is short, the west coast is long, and it is worth pricing before the shape of the tank is settled. Both the freight class field and the ship mode field read OVS, and the sheet carries no NMFC. The crate is 196 inches by 102 inches by 102 inches against a 1337 lb ship weight, with 1407 lb in the empty weight field; both are printed and the lane is priced on the ship figure. A box more than sixteen feet long and comparatively light prices on the space it occupies rather than on its weight, and the receiving question is whether the truck can reach the spot where the tank is meant to stand. The freight cost estimator prices the lane to your ZIP, and the listed price is before freight. Nothing on this sheet describes a crane, a rigging arrangement, a permit or an escort, so nothing here does either. The work to do in advance is the ordinary work: a clear approach, a finished pad, and the reach and the hands to stand a shell this long upright on its own base rather than leaning it on a wall or parking it on gravel for a week where it will get knocked. Walk the bottom edge and check the manway seat for transit damage before signing. Then fill with clean water where it will live, leave it a full day, and read the base and the bulkhead before a single pipe is made up. The last job before it goes into service is to pull hard on the straps by hand; a tall tank nobody has ever pulled on is the one that moves the day somebody trips over a hose. Chalk the full-water line on the outside after the first fill; it is the level every later reading gets checked against.