Snyder Industries 1500 Gallon ASTM XLPE Black Double Wall Tank

Low headroom duty at fifteen hundred gallons

The duty this shape is bought for is bulk storage in a room that has floor but not height. At 76 inches tall on a 93 inch plan this is the only tank in its family that is comfortably wider than it is tall, and that single fact decides who buys it: plant rooms under a mezzanine, basements and sub-floor chemical stores, skid-mounted packages that have to travel under a door, process buildings with a crane rail or a duct run overhead, glasshouse and irrigation chemical points, wash bays, and any position where a taller vessel of the same volume would simply not go in. Fifteen hundred gallons in that envelope is a genuinely useful quantity: enough to take a bulk delivery and stop handling totes, small enough to fit where the equipment already is. The containment job is the usual one and worth stating plainly. The tank stands on a floor or a slab where a release would reach a drain or the ground, a bund is not going to be built around it, and the second wall is what allows the vessel to stand there as a single item. The base still carries the whole load: the sheet gives 12,510 pounds for the water alone at 8.34 pounds per gallon and 23,769 pounds of max contents at the 1.9 rating, against 950 pounds empty, and that surface wants to be flat, continuous and level under the entire 93 inch footprint. Two sizing points belong before the order. Usable volume and real headspace are not the nameplate figure, which the Captor double wall freeboard sizing guide works through on thermal expansion, chemistry and density, and it matters more on a low, wide vessel because a small rise in level covers a lot of area. Then check the capacity against your delivery quantity and turnover in the tank sizing calculator and take the freeboard discipline from the tank sizing guide. Where the job is private fire water storage rather than process chemical, the fire water reservoir design guide for rural and remote sites is the right starting point and nothing on this page is a claim about that duty.

Four 1500s, an 1100 and a 1550

Four part numbers hold 1,500 gallons on the identical 93 by 93 by 76 inch shell at the identical 950 pounds, and the sheet separates them by name alone. This page does not interpret a name, because a name is not a specification; tell us the product, its strength and its duty and we will confirm the row. What belongs to this listing is its own line: cross-linked linear polyethylene, black, a service limit of 120 F / 48 C, and a specific gravity rating of 1.9 carrying 23,769 pounds of max contents. Check that rating against the liquid you are storing, and note that the limit on this sheet is the one that applies to this part number and not to a shellmate. The two other rows are the interesting comparison because they are the same idea laid out the opposite way. 5470000N48 holds 1,100 gallons on a 76 inch plan at 104 inches and 650 pounds. 5490000N48 holds 1,550 gallons, almost exactly this tank's volume, on that same 76 inch plan but at 136 inches and 780 pounds. So for the same stored quantity you can have this tank at 76 inches on a 93 inch square, or the tall one at 136 inches on a 76 inch square. One costs you floor and the other costs you height, and there is no third option in this family. Measure the clear height at the fill point and the free floor area you have, then choose the row your room can actually accept; this one is the answer whenever the ceiling is the binding constraint and the low silhouette keeps the manway within easy reach.

Settled on the 1500 gallon tank? Freight to your ZIP and add to cart above; a written quote is one click away for the paperwork.

Drawing down a wide, low tank

• The discharge: the outlet field reads "1 Manway / Lid", which names an opening and not a pipe size, and no inlet, thread, flange or valve appears anywhere on this sheet, so none is claimed. With the published route in and out at the top, the working arrangement is a suction assembly dropped through the manway to a pump beside the tank. Tell us the product, the flow and the line size and we will confirm what this part number carries before pipe is bought.
• Suction on a low tank: the standing column here is short, so the pump has less help from the liquid level than it would on a tall vessel. Keep the suction short and generously sized, keep it flooded where the layout allows, and do not add a long horizontal run that gives back the advantage the shape provides.
• Prime: where the pump sits above the working level, fit a proper priming arrangement instead of trusting a foot valve. On a shallow vessel there is less head to recover a lost prime with.
• Low level protection: set the strainer clear of the bottom, and cut the pump out on low level. A wide, shallow tank runs out over a larger area than a tall one, so the last part of the draw-down is where the strainer starts pulling air.
• The fill opening: an 18 inch threaded vented manway is the only opening published, and at 76 inches it is the most reachable top in the family. That is a real operating advantage on a vessel that is opened for inspection and cleaning.
• The vent: the manway is listed as vented, and that path protects the wall while a delivery pushes air out and while the pump draws the level down. Keep it clear and inspect it whenever the manway is open.
• The space between the walls: no monitoring port, gauge or alarm is published on this sheet, so how that space is watched and recorded is specified separately and written into the schedule.
• Limits: 120 F / 48 C, a specific gravity rating of 1.9, and a 3 Year Warranty.

Name the product when you order; the seal and the suction fitting are the whole wetted route on this arrangement, and the second wall does nothing for a fitting chosen from a default.

Plant rooms and skids under a low roof

This is the tank for a position with a ceiling: chemical feed and dosing rooms under a mezzanine, basement plant at a treatment works, skid-built packages that must clear a door on their way in, process buildings with services overhead, glasshouse and irrigation chemical stores, vehicle wash and laundry sites, and packaged water systems where the whole assembly ships as one unit. Fifteen hundred contained gallons in a 76 inch envelope is the reason those jobs are possible at all; the usual alternative is two smaller vessels and twice the pipework. Two further reads are worth the time. The guide to wall thickness at the vapour saturated headspace explains why a polyethylene wall works hardest at the vapour line and why a look from the liquid side misses it. And where somebody asks how the space between the walls is tested and what the methodology behind that question is, the cathodic disbondment testing guide for double wall interstitial spaces sets out where the polyethylene boundary lies; this tank is polyethylene and stands above ground, and nothing here claims otherwise.

Chowchilla or Lincoln, 950 pounds, class 250

This sheet lists two plants, Chowchilla, California and Lincoln, Nebraska, with both states named as ship-from points, which is worth real money on a load this size: the West, the Southwest, the plains and most of the Midwest are all a manageable move rather than a cross-country one. Freight is LTL at class 250, there is no NMFC number, and the shipping size is given at 93 by 93 by 76 inches at 950 pounds. Price the lane to your ZIP with the freight cost estimator; the listed price is before freight. The shape makes the delivery easy at the height and awkward on the plan: under seven feet tall clears nearly any door on the route, while nearly eight feet square needs deck space, a proper gate and room to turn. Offload under the base with forks, never with a strap round the body and never by the manway. Set it on the finished, cured, level surface in its final position before anything is plumbed, then fill with clean water and hold the 12,510 pound load while you read the manway seal, the base all the way round and the slab under it. Drain, dry, open the space between the walls in good light and record the date on the shell. Finally, leave a clear walking route all the way round before the pipework goes in; on a wide tank in a tight room, the side nobody can reach is the side that never gets looked at. Note the pad height and the outlet height on the site plan while the tape is out; the next pipe run will need both.