Snyder Industries 250 Gallon ASTM Sodium Hypochlorite HDPE Double Wall Tank

Lincoln, Nebraska, and a tall shipment on the trailer

Lincoln, Nebraska is the only plant on this sheet and Nebraska the only ship-from state, which is a central lane: the plains and the Midwest are close, the coasts are a planned move. The shape is what makes this particular freight worth thinking about in advance. At 34 inches square and 83 inches tall the tank is one pallet position on the floor but nearly seven feet high, and it is that height, not the 150 pound weight or the class 250 rating, that decides how it travels and how it gets into your building. Seven feet on a pallet is taller again than seven feet on the ground, so the door lintel, the roller shutter and any overhead pipework on the route are the measurements to take before the truck is booked. Price the lane to your ZIP with the freight cost estimator; the listed price is before freight. That same tall, narrow proportion is exactly why people choose this size. Two hundred and fifty gallons on a three foot square plan is a great deal of contained volume for very little floor, which is what you want in a plant room, a dosing bay or a corner beside a skid where the floor is already committed. It is the opposite trade from the wide, low contained tanks in the larger sizes, and it is the right trade whenever the ceiling is generous and the ground is not. The consequences are worth stating plainly. A tall vessel on a small base wants a properly flat, continuous, level surface under the whole footprint, with no rocking and no shim at one corner, and it wants that more than a squat tank does. Above that base sits 2,085 pounds of water and 3,962 pounds at the published rating. And the top is at 83 inches, which puts the lid above head height for most people: a step, a platform or a delivery arrangement that brings the coupling down to working level is part of the installation, not an afterthought. Two sizing questions belong before the order. The usable volume and the real headspace are not the nameplate figure, which the double wall freeboard sizing guide works through on thermal expansion, chemistry and density; and your delivery quantity and turnover should be checked in the tank sizing calculator with the freeboard discipline from the tank sizing guide. Two pieces of engineering are worth reading alongside them. A polyethylene wall's hardest service is at the vapour line rather than under the liquid, and the wall thickness at the vapour saturated headspace guide explains why an inspection from the liquid side misses it. And where somebody asks how the space between the walls is tested, the cathodic disbondment testing guide for double wall interstitial spaces sets out that methodology and where the polyethylene boundary lies; this tank is polyethylene and stands above ground, and nothing on this page claims otherwise.

Three more 250s, a 150 and a 275

Four of these six are the same 34 by 34 by 83 inch shell at the same 150 pounds and differ only in the name and colour the maker gives them: two named as cross-linked, one of those black, one named as high density and black, and this one named for sodium hypochlorite. We print the names exactly as the sheet gives them and explain none of them, because a product name is not a specification and inventing one is how a plant ends up with a vessel that was never meant for its duty. Tell us what you are storing and we will tell you which of the four to order. The last two rows are where the useful engineering choice is. 5710102N30 holds 150 gallons on the identical 34 inch plan, simply shorter at 62 inches and 110 pounds, so moving between the two is a pure height decision with no floor consequence at all. 5740102N30 is the opposite kind of tank: 275 gallons, barely more volume than this one, but laid out at 47 inches square and only 63 inches tall at 200 pounds. That is a much wider base for a much lower top, and it is the right answer where the lid has to be reachable from the floor, where a low ceiling rules this one out, or where a tall narrow vessel in a busy walkway is a hazard nobody wants to manage. In short: same volume, opposite proportions, and the room decides. Measure the height available and the floor available before you choose, and remember that the tall one wins on floor while the wide one wins on everyday access.

Ready to choose a row? Add the 250 gallon tank to your cart above with freight quoted to your ZIP, or 866-418-1777 will confirm it against the site first.

Loading through the lid at 83 inches

• The fill opening: a 14 inch threaded vented lid is the only opening this sheet publishes, and it sits at the top of an 83 inch shell, above head height for most people. Fourteen inches is a workable opening for a delivery coupling, a drop pipe and a lance; the question is not the size but the access, so plan a step, a platform or a permanent fill line from working level before the tank is set.
• The vent: the lid is listed as vented, and that path is what keeps the wall out of trouble on a fast delivery and on a hard pump-down. On a tall, slim vessel the level moves quickly for a given flow, so the vent matters more here than on a wide one. Keep it clear and inspect it whenever the lid comes off.
• The outlet: the outlet field reads "1 Manway / Lid", an opening and not a pipe size, and no inlet, thread, flange or valve is published on the sheet, so none is claimed here. Tell us the duty and the line size you need and we will confirm what this part number carries before the pump is specified.
• Pump arrangement: with the published route in and out at the top, the usual arrangement at this size is a suction line and strainer dropped through the lid to a metering pump nearby. Keep the suction short, set the strainer clear of the bottom, and support the hose off the frame rather than off the lid rim.
• The space between the walls: no monitoring port, gauge or alarm is published, so how that space is watched and recorded is specified separately. It is the part of a contained tank worth writing a procedure for.
• Limits: 120 F / 48 C, a specific gravity rating of 1.9, and a 3 Year Warranty. That is the whole of what this sheet publishes about service.

Name the product when you order. On a contained vessel the wetted parts are the only route a release can take, and they are chosen against the chemistry rather than against a default.

Disinfection rooms with a small floor

This size and shape lands in rooms where the volume is wanted and the floor is not available: a disinfection or dosing room at a small water or wastewater works, a package treatment skid at a food, beverage or dairy plant, a pool and aquatics plant room, a cooling tower or boiler house chemical station, a laundry or vehicle wash, and industrial lines that dose steadily and take a delivery every few weeks. Two hundred and fifty gallons is usually the point at which a site stops handling totes by forklift and starts taking a hose delivery instead, and doing that indoors is what the second wall makes possible. Two practical habits go with the tall shape. Keep the area round the base clear, because a slim vessel in a busy walkway gets knocked and a knocked tank is a tank somebody has to inspect. And inspect the space between the walls on a fixed schedule with the date written down, since the only thing a second barrier gives you that a single wall does not is the evidence that nothing has escaped the first one.

A 34 inch footprint at 150 pounds

Lincoln, Nebraska is the plant and Nebraska the only ship-from state, which is about as central a lane as this catalogue has. Freight is LTL at class 250 with no NMFC number on the sheet, and the shipping size is given at 34 by 34 by 83 inches at 150 pounds. Price the lane to your ZIP with the freight cost estimator; the listed price is before freight. One pallet position, 150 pounds and a tail lift covers most deliveries, so the equipment at your end is a pallet truck rather than a crane, but the height is the thing to plan: measure every doorway, lintel and overhead run on the route to the final position, and move it upright where the route allows rather than laying it down and standing it up in a confined space. Take it under the base, never by the lid. Set it on the finished, level surface in its final position, check it is plumb in two directions, and secure it against being knocked before anything is plumbed in. Then fill it with clean water and hold that 2,085 pound load while you read the lid seal and the whole base. Drain it, dry it, open the space between the walls and record the date on the shell. Last, stand back and look at it from the doorway with the water still in it: a tall tank that is a degree off plumb is obvious from across the room and invisible from beside it. Leave room to walk all the way around it; the side of the tank nobody can see is the side that leaks.