Snyder Industries 3000 Gallon HDPLE Captor Double Wall Liquid Storage Tank Opaque Resin

Lincoln to the plant yard, oversize, 1,840 pounds empty

This tank comes out of Lincoln, Nebraska and it does not travel like an ordinary tank, which is the first thing to plan around. The sheet gives the freight class as OVS, a mode rather than a numeric class, and what moves is a cylinder 102 inches in diameter standing 142 inches tall, which is eight feet six inches across and eleven feet ten inches high. That is a wide load on a trailer and a tall one through a gate, and it weighs 1,840 pounds before a drop of liquid is in it. So the buying decision starts with the route and the set-down: the yard entrance, the overhead lines, the turn into the compound, the door if it is going indoors, and the machine that will lift it off. Get that agreed before the order rather than the week of delivery, because an oversize load with nowhere to land is an expensive afternoon. The pad is the other half of the same decision. A Captor puts the whole load of its inner tank, its contents and its outer shell onto one circle: 25,020 pounds full of water and 47,538 pounds at the 1.9 rating the sheet gives, all on a base 102 inches across. The pad has to be designed for that on your soil, extend past the shell on every side, and be flat and truly level, because a tall cylinder out of plumb loads one side of its base for the whole of its life. The advantage you are buying for all that trouble is that the containment arrives with the tank. One delivery, one footprint, one set of anchors and no concrete bund to pour, drain and maintain. The Captor double wall SPCC walkthrough is the piece that works through what that buys a plant in practice, and the Captor freeboard sizing article is the one to read before the volume is signed off, because the usable volume of a double wall tank is never the number on the nameplate. Put the answer through the tank sizing calculator against your delivery size and take the rest of the discipline from the tank sizing guide.

Four 3,000 gallon Captor listings, and the 2,500 and 3,500 beside them

Everything on this sheet stands on the same 102 inch circle, which is the most useful fact in the table: a pad poured for any one of them serves all six, so a site can change its stored volume later by changing the height rather than the concrete. Inside the 3,000 gallon group the differences are wall and weight. This listing is the high density linear one at 1,840 pounds; 5590000N30 and 5590000N42 are listed at 1,900 pounds in the identical 102 by 142 inch shell, and 5590000N46 at 1,400 pounds. The sheet gives those four weights and explains none of them, so this page prints them and explains none either; what matters to a buyer is that the rigging, the anchors and the freight quote are done on the part number actually ordered. The reason to specify this one is that it is the high density linear wall at 3,000 gallons with its own 3 year warranty and its own 1.9 rating, where the sulfuric acid and cross-linked listings exist for duties that ask for those walls. Above and below it the family steps by height alone: 5580000N30 holds 2,500 gallons at 122 inches and 1,100 pounds, and 5600000N30 holds 3,500 gallons at 158 inches and 2,500 pounds. If the yard has vertical room and the delivery tanker does not want to split a load, the taller shell is usually the cheaper gallon; if there is a canopy, a gantry or a neighbour's sightline overhead, the shorter one is the tank that will actually be installed.

Settled on the 3000 gallon tank? Freight to your ZIP and add to cart above; a written quote is one click away for the paperwork.

The threaded vented manway on top, and nothing else on the sheet

• The opening: an 18 inch threaded vented manway is the only access the sheet publishes, at the top of a shell 142 inches tall. That is nearly twelve feet of climb, so the ladder, the platform, the fall protection and the confined space procedure are design items to settle before the tank is ordered, not on the morning somebody first has to open it.
• Venting: the manway on the sheet is a vented one, and the tank has to take air in at least as fast as a pump takes liquid out and push it out as fast as a tanker fills. Size for the fastest event the site will ever run, keep the path clear and screened, and inspect it every time the manway is opened.
• Outlet and valve: the sheet lists no outlet and no inlet on this part. On a double wall tank that is not something to guess at, because a penetration has to pass through two shells and stay sealed at both. Name the chemical, the fill method and the draw rate when you order and the fitting schedule for your part is confirmed in writing.
• The space between the walls: the interstitial volume is what you are actually buying, so decide before commissioning how it will be monitored, who owns that check and how often it happens. A leak detector nobody reads is not detection.
• Limits and term: 120 F / 48 C, and a 3 year warranty as the sheet gives it. Ask us for the current written terms rather than relying on a line in a listing.

One maintenance point is worth more than the rest on a tall polyethylene shell: the wall works hardest where nobody looks, in the vapour-saturated headspace above the liquid line, and an inspection done from the liquid side misses exactly that band. The article on wall thickness at the vapour-saturated headspace explains why failures start there and what the sizing logic is protecting. Put that inspection in the plant calendar with a name against it the week the tank is commissioned.

Where a plant puts its containment before the inspector asks

Three thousand gallons of self-contained storage is a common answer for a plant that needs bulk chemistry on site but has no appetite for civil works: treatment chemical at a water or wastewater works, process chemistry in food, paper, plating or mining, agricultural chemical at a hub, and any storage where a release would cost far more than the tank. The comparison that usually decides it is this tank against an open vessel in a poured bund, once the concrete, the drainage, the rainwater that collects in the bund and the ongoing inspection are all counted. Where the stored liquid matters to a site's fire or emergency water arrangements as well, the fire water reservoir design guide for rural and remote sites covers the sizing discipline and the cold-climate engineering that belongs with it.

Setting a 142 inch tall double wall on a finished pad

The sheet gives Lincoln, Nebraska as the plant and OVS as the freight mode, and it publishes no NMFC for this part, so no numeric class and no NMFC is quoted here. Price the lane to your ZIP with the freight cost estimator; the listed price is before freight. Plan the unload properly: 1,840 pounds is a telehandler or a crane lift with slings on the points Snyder specifies, never a strap round the manway and never rolled across gravel on its outer shell, because the outer shell is the containment you are paying for. The pad should be poured, cured, surveyed level and swept before the delivery date is confirmed, and the anchors and fittings should be on site the same day. Then fill with clean water in stages, checking plumb and base contact at each stage, and hold it full long enough to walk the outer shell and the manway before any chemical is ordered. Keep the survey and the photographs from that first fill in the plant file, because on a tank that will outlast three maintenance managers, the commissioning record is the only baseline anybody will ever have. Note the pad height and the outlet height on the site plan while the tape is out; the next pipe run will need both.