Snyder Industries 7900 Gallon ASTM XLPE Heavy Duty Vertical Storage Tank

The dense liquid tank for a roof under fifteen feet

Brines, concentrates and dense process solutions are what the 1.9 wall is for; plain water and most fertilizers do not need it and the standard version of this shell serves them for less. Crosslinked polyethylene is the other half of the specification: it holds up against chemistry that softens ordinary polyethylene, and our note on when crosslinking matters for chemistry duty explains where that line falls. At 177 inches this is the shorter of Snyder's two shells near 8000 gallons, which is the one to price when the building has close purlins or a fill line that has to land above the manway from a fixed height. Liquids that expand in a warm tank need freeboard above the working level; the freeboard sizing note shows how much of the 7900 gallons you can actually use. Check the volume against your draw and delivery interval with the tank sizing calculator and tank sizing guide.

At the rating, 125,183 lb rests on a 120 inch circle, and a rotationally moulded floor bears on every part of that circle rather than bridging it. Build the slab to our concrete pad sizing guide, level and in full contact, inside a berm sized to the tank wherever the liquid is regulated. Where a tank this size doubles as a rural fire supply, the fire water reservoir design guide covers sizing and freeze protection.

Openings and what to confirm before you buy

1. Manway. An 18 inch threaded vented manway on top. Size the vent to the delivery pump: the air displaced by 7900 gallons has to leave as fast as the liquid arrives, and a vent that is too small is the usual reason a lid seal keeps failing.
2. Fill. Use a dip tube to the floor. Fourteen feet of free fall foams the headspace and wets the upper wall where vapour concentrates; the article on wall thickness at the vapour saturated headspace explains why that is where tanks fail first.
3. Outlet. This listing does not state an installed outlet fitting. Tell us the liquid, the size and material you need and where the drain lands, and we will confirm with Snyder what comes on the tank and what is added.
4. Temperature. 140 F (60 C) is the service limit. A hot process liquid, or a tank in direct summer sun near that limit, needs a conversation first.
5. Drawing. Snyder's drawing is linked on this page under Technical Drawing, with the fitting locations and the exact profile for your pad layout.

The 7370000 shell and its neighbours

Same shell, lighter wall for water and light liquids: the 7900 gallon 7370000N40. In black, which keeps light off the contents, Snyder offers the 7900 gallon black 7370000N46 and the 7900 gallon black 7370000N49. For the same duty in a different footprint, the 7650 gallon heavy duty 5300700C26 is the wider, shorter alternative, and the 8000 gallon 5300600N40 is the taller standard wall tank in the same diameter.

Shipping and receiving

The tank ships LTL at freight class 300 from Snyder's Lincoln, Nebraska plant, 120 by 120 by 177 inches on the truck at 2,700 lb. Add it to your cart at the top of this page, get LTL freight to your ZIP, or call 866-418-1777. The listed price is before freight. A tank this wide needs a crane or a large forklift and a clear landing spot at the address. At the tailgate, check 7370000N42 against the bill of lading, look over the whole wall and the floor edge for transit damage, and fill it with water the first time before it carries anything dense; our hydrostatic test guide gives the hold times and what to watch at the pad edge.