The black 10,000 gallon Captor, 7,400 pounds empty, 1.5 specific gravity
The Snyder SII-1006600N49 is a 10,000 gallon Captor double wall liquid storage tank in black high density linear polyethylene: an inner tank held inside an outer containment shell, 142 inches across and 226 inches tall, listed at 7,400 pounds empty and 7,400 pounds to ship, molded at Lincoln, Nebraska. The sheet rates it at a specific gravity of 1.5, which is where the 125,100 pound maximum contents figure comes from, against 83,400 pounds for 10,000 gallons of water at 8.34 pounds per gallon. Access is an 18 inch threaded vented manway. The service limit is 120 F / 48 C and the sheet gives a 3 year warranty. Freight is class OVS. The sheet publishes no outlet and no inlet fitting, so this page asserts neither; connections are specified with the order.
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Lincoln, Nebraska to your site: what a 226 inch load costs in planning
Begin at the plant, because on a tank this size the lane is the part of the purchase people underestimate. This shell is molded at Lincoln, Nebraska, and it leaves there as a single piece 142 inches across and 226 inches tall at class OVS, which in plain terms is eleven feet ten inches of diameter and eighteen feet ten inches of height on a trailer. That is not a rate off a table. It is a permitted, routed load: the diameter is wider than the deck it rides on, the height decides which bridges, wires and tree lines are available, and the schedule depends on when a permit and, on some routes, an escort can be had. For a Midwest or Plains buyer, Lincoln is a short lane and the whole job can be planned in a week. For a buyer on either coast it is a long one, and the honest advice is to book the tank and the crane in the same conversation rather than three weeks apart. Three site questions decide whether the delivery goes well, and all three are answered before the truck is booked. Can the vehicle reach the pad, stop, and stay level while the tank comes off? Is there a machine on site rated for 7,400 pounds with slings long enough to go under the body, because nothing gets hooked through the manway? And is the pad finished, cured and level, so that the tank is set down once rather than parked on the dirt beside it and moved again? A rotationally molded floor bears on the whole surface it touches and nothing else, and once 83,400 pounds of water, or up to 125,100 pounds of contents at the rating, is standing on it, a low spot or a hollow becomes the bearing point for the whole load and stays that way. The freeboard arithmetic is the other thing to settle before the order rather than after, because the usable volume of a contained tank is not the nameplate figure once the liquid is heavier than water and warms through the day; the Captor double wall freeboard sizing guide does that properly. What a contained installation has to do to satisfy a site's containment rules, as opposed to merely looking contained, is set out in the Captor double wall containment walkthrough. Check that 10,000 gallons is the right number in the tank sizing calculator and take the reserve and headspace from the tank sizing guide before any concrete is poured.
Four 10,000 gallon Captor part numbers, and the weights the sheet gives
| Part | Gallons | Diameter x height | Empty weight |
|---|---|---|---|
| SII-1006600N49 (this tank, black, 1.5 specific gravity) | 10000 | 142 x 226 in | 7400 lb |
| 1006600N30 (same shell, same listed weight) | 10000 | 142 x 226 in | 7400 lb |
| 1006600N40 (same shell, lighter on the sheet) | 10000 | 142 x 226 in | 6400 lb |
| 1006600N46 (same shell, lighter on the sheet) | 10000 | 142 x 226 in | 6400 lb |
| 1006400N46 (smaller, same base, shorter) | 8700 | 142 x 197 in | 5000 lb |
| 1031100N30 (larger, same base, taller) | 12500 | 142 x 274 in | 9500 lb |
Four part numbers here put 10,000 gallons in one 142 by 226 inch envelope, two of them listed at 7,400 pounds and two at 6,400 pounds. The sheet gives those figures and no reason for the difference, so they are printed as given and nothing is read into them. What actually separates rows in this family is the wall specification behind the number, which is a question about the liquid rather than about the tank, and it is the conversation to have before a part number is chosen: this page is the black shell rated at a specific gravity of 1.5. The reason to take a black wall is daylight. A pigmented wall keeps light out of the liquid, which matters for any product that degrades, grows or changes on exposure, and it matters most on an outdoor installation that stands in the open for a decade. Against that, a black shell standing in summer sun runs warmer than a light one, and the sheet's service limit of 120 F / 48 C applies to the tank as well as to the contents, so a hot climate and a warm liquid are worth discussing before the colour is settled. The volume steps are the other useful comparison. The 8,700 gallon 1006400N46 keeps this base and drops to 197 inches at 5,000 pounds, which buys two feet five inches of clearance for thirteen hundred gallons; take it when the building, the roof line or the available crane sets the height. The 12,500 gallon 1031100N30 keeps the base and goes to 274 inches at 9,500 pounds, which adds a quarter more volume on the same circle of concrete and is the right move when the pad is the scarce resource. Since all three heights share one base, pour the footprint once and choose the height last.
Need two of them? Request a written quote for the pair with freight to your ZIP, or call 866-418-1777 and we will price the truck once.
Filling it: an 18 inch threaded vented manway eighteen feet up
- The opening the sheet publishes: an 18 inch threaded vented manway, and nothing else. That is the fill point, the inspection port and the only access to the inside of the inner tank, and it sits at the top of a shell that stands eighteen feet ten inches, so how anybody reaches it is part of the design rather than an afterthought. Fixed access with a rail beats a ladder leant against polyethylene every time.
- How the liquid should arrive: bring the fill down to a coupling at working level rather than lifting a tanker hose over the wall, and take the fill line down inside the body instead of letting the product free-fall onto the surface. A free fall aerates, splashes the headspace and, on a foaming product, costs you freeboard you had counted on.
- Venting: the manway is vented, and that vent path is kept clear at all times. A polyethylene tank drawn on hard through a blocked vent will pull its own wall inwards, and on a shell this size that is not a field repair. Check it every time the manway is opened.
- The headspace is where the wall works hardest: on many chemicals the vapour above the liquid is harsher than the liquid itself, and it is the zone a liquid-side inspection walks straight past. The vapour-saturated headspace wall thickness guide explains what to expect there and why it belongs in the inspection plan from the first year, not the tenth.
- What the sheet does not publish: no outlet and no inlet fitting. That is said plainly rather than filled with a guess. On a double wall every penetration through the inner tank has to be made without compromising the containment shell around it, so the fitting schedule is part of the tank order and nothing is cut into either wall in the field.
- The annulus between the inner tank and the outer shell is the point of the product: keep it monitored, keep it readable, and keep it reachable without moving pipework.
- Service limit and warranty: 120 F / 48 C, with a 3 year warranty as the sheet gives it. The rating is 1.5 and the 125,100 pound maximum contents figure is that rating against the capacity; nothing beyond it is claimed.
Everything downstream follows the same discipline. A flexible connector at the first joint on every line, because a rigid run bolted to a polyethylene wall carries the shell's thermal movement, the pad's settlement and every pump start into the fitting. Valves on their own supports off the pad. A kerb or bollards between vehicle traffic and the base, since the only fragile parts of the installation are at the bottom. And an overflow route decided before the first fill.
Outdoor chemical storage where daylight on the liquid is the problem
A black contained shell is bought for the yard rather than the building. The duties: bulk chemical storage in the open at a water or wastewater plant, a mine, a mill, a processor or a distributor, where a product has to be kept out of the light as well as inside a barrier; a receiving tank that takes a full tanker load and feeds a process or a smaller day tank; outdoor storage where a concrete berm would fill with rain and have to be pumped out and tested before it could ever be used as containment; a site that has decided it would rather inspect a monitored annulus on a walk-round than trust a liner and a civil structure. That last point is usually the real argument for a double wall: a berm is a structure that cracks, collects water and needs housekeeping, while the containment on this tank arrives with the tank and gets looked at in the same five minutes as the tank itself. Where the water rather than the chemical is the point, and the tank is being considered as a stored reserve for firefighting, that is a different design exercise with its own sizing, connection and freeze discipline, and the fire-water reservoir design guide makes that case properly instead of assuming it. One limit the sheet does state, and it is the one to respect on a black tank: 120 F / 48 C, which covers the liquid and the shell standing in the sun. Tell us what the product is, how hot it arrives and how hot it sits, before anything is ordered.
Permits, escorts and a crane: the delivery this tank actually needs
The sheet gives class OVS at 142 by 142 by 226 inches and 7,400 pounds out of Lincoln, Nebraska, and the practical translation is that this is a project delivery rather than a shipment. The freight cost estimator prices the lane to your ZIP, and the listed price is before freight. Walk the route with the height and the width in hand: overhead lines, a low branch, a narrow gate, a tight turn into a yard or a soft field entrance after rain will each stop a load that the rate card says is fine. Confirm three things in writing before the truck is booked: who is lifting, what the machine is rated for, and where the tank is being set down. Slings go under the body and never a hook through the manway, and the tank is placed on the finished, cured pad in one move. Then inspect the outer containment shell in daylight all the way around, including the side that will face a wall for the rest of its life, and do it before the crew leaves rather than after. The delivery paperwork and the serial number on the shell are what any later conversation about this tank starts from, so put them in the plant file the same day and not in a drawer. Photograph the outlet fitting from below before the pipe goes on; a slow weep is easier to compare against than to describe.
Freight and documents
Ships from: Lincoln, NE. LTL freight is quoted to your ZIP with the freight cost estimator or by phone at 866-418-1777. The listed price is before freight.
Technical drawing (PDF) for Snyder Industries 1006600N49.
See this tank
Interactive 3D model with live fill. This tank has an interactive 3D model built to its manufacturer dimensions. Rotate it, and set a fill level to see how much liquid it holds at any height. Open the 3D view on the product photo above. Download the 3D model (GLB).
Product video. Watch the Snyder Industries 10,000 Gallon HDLPE Captor Double Wall Liquid Storage Tank in Black- 1.5 specific gravity video (74 seconds) with dimensions, fittings and shipping notes.
Ready to order?
Add it to your cart at the top of this page, get LTL freight to your ZIP, request a written quote, or call 866-418-1777. The listed price is before freight.