Snyder Industries 4650 Gallon ASTM Black Heavy Duty Vertical Storage Tank

The duty: a dense liquid indoors at 4,650 gallons

The plant that buys this one usually has a roof over the tank. A plating or finishing shop with acid or caustic beside the line, a treatment plant dosing a dense coagulant out of a chemical room with pipe and duct overhead, a Delta or Mid-South manufacturer holding a heavy feedstock next to the machine that uses it, a co-op with a dense solution under a shed. What makes the shape work indoors is the pair of numbers in the header: 102 inches across and 154 inches tall, which is an eight and a half foot circle standing under thirteen feet of clear height, so it goes where a taller tank will not and still takes a full tanker in one delivery. Because the liquid is dense, the floor is the whole job. A molded base bears on the entire 102 inch circle rather than on a ring, so it follows a low quarter of the slab instead of bridging it, and the load it carries is 38,781 pounds of water at the light end against as much as 73,684 pounds of contents at the rating on this sheet: engineered, level and in full contact under the whole base, per the concrete pad sizing guide, inside a berm sized to the tank wherever the liquid is regulated. In this part of the country that pad is often on clay that moves with the seasons, which is an argument for engineering it rather than pouring it by rule of thumb. Strapping still goes on while the tank is empty, because 1,613 pounds of shell nearly thirteen feet tall catches wind on a nearly empty day. The black wall passes no light to the liquid and hides the level, so the sender is read at grade. Check 4,650 gallons against the dosing rate and the truck schedule in the tank sizing calculator, and take the reserve and the thermal freeboard from the tank sizing guide.

The 8210000 shell in four walls, at 1,200 and 1,613 pounds

The sheet puts the four walls of this shell into two weights: this tank and the 8210000N42 at 1,613 pounds, the 8210000N40 and the 8210000N46 at 1,200 pounds. The narrow reason to buy this row is the rating it carries on its own sheet, because 1.9 is the number that lets a liquid heavier than water go into this shell at all, and the lighter listings, each rated as their own sheets say, are the honest answer for anything near the weight of water. The same shell is also molded in a lighter-duty grade this sheet does not rate. Outside the shell the table is a floor-against-ceiling choice with almost no change in volume: the 7000500N40 lays 4,600 gallons down to 116 inches on a 120 inch base, three feet lower than this tank, for a chemical room with even less headroom, and the 5480000N40 stacks 4,900 gallons onto a 90 inch base at 202 inches for a site with sky and no floor. This page sits in the middle of that trade on purpose, which is usually what an existing building wants.

Need the taller or the wider one? Every row links to its page with freight to your ZIP on each; 866-418-1777 will check the ceiling and the pad.

A pump under 154 inches, and an outlet field that reads 13.75

• Pump: mount the transfer pump below the outlet so the 154 inch column primes it by gravity and it stays flooded deep into the tank. Keep the suction line short and straight, fit a low-level float so it stops before it draws air, and on a dense liquid check that the pump is rated for the specific gravity as well as the flow.
• Outlet: the sheet lists the outlet as 13.75. No diameter, material, thread or gasket appears with that figure, so it is not a pipe size and we do not print it as one; the draw-off is specified at order against the liquid and the pipe you are tying into.
• Access: 18 inch threaded, vented manway 154 inches up. A ladder, a platform and a rail, and whoever opens the lid is working at height.
• Structure: two flange lines are what the sheet lists, and it lists no lug counts at all.
• Service limit: 120 F / 48 C. Warranty: 3 year.

What hangs off the outlet is where tanks on a dense duty get hurt. A rigid pipe run bolted straight to the bulkhead feeds every bit of thermal movement and pump vibration into the wall, so the flexible connector and the valve standing on its own support off the pad are not options on this page. Set the draw-off low, because a fitting placed high for the pipe fitter's convenience leaves a heel that is heavy as well as awkward on a liquid this dense. Fill down a dip tube to the floor instead of letting a heavy liquid free-fall the length of the shell, and if it fumes at all, run a vent line where the fumes should go and size it for the delivery pump rather than trusting the lid to breathe for a tanker. Keep the lid latched between deliveries, put the name of the one liquid on the wall, and light the band of wall above the working level every time the manway comes off. Where winters bite, the valve and the first pipe run get trace heat or insulation; the body itself ices from the top down without harm.

Mid-South plants that dose something heavier than water

Metal finishing, municipal treatment, brine handling and heavy feedstock storage are the duties, and the common thread is a dense liquid that has to live in a building somebody else designed. Where site rules call for containment, a double wall costs usable volume, and the Captor double wall freeboard guide works out how much at this size before the wrong tank is ordered. A fire reserve is a different job with its own sizing discipline and wants a water-duty vessel, which the fire-water reservoir design guide sets out; a dense-duty chemical wall is the wrong buy for it even though water sits well inside the rating. Name the liquid at order, because the fitting and the gasket are chosen for it and nothing is drilled at the plant.

Marked Tree, Arkansas: 1,613 pounds at class 300

This tank is molded at Marked Tree, Arkansas and moves as freight at class 300 as the sheet lists it; at 102 inches across and 154 inches long on the deck it rides as a permitted load, and the freight cost estimator prices the lane to your ZIP, with the listed price before freight. Because the sheet lists no lifting lugs, set 1,613 pounds with straps under the body or long forks under the base and never a hook through the manway, and land it in one move rather than walking it across the slab. Then water before product: fill to the manway, hold it a shift, and read the pad edge and the fitting you specified with somebody standing at the base. Nobody leaves the pad during the first chemical delivery either; watch it from the first gallon to the last. A strap that is checked once a season is a strap that holds; put it on the same calendar as the gutters.