Snyder Industries 13800 Gallon HDPE Vertical Liquid Storage Tank with ASTM Certification

The widest certified tank, at the lightest certified wall

A 1.35 specific gravity rating is the step between the water wall and the middle grade: alum and most fertilizer solutions come in lighter than that, so this tank carries them with margin at less resin than the heavier grades in the same shell, 300 and 550 pounds less. The certification is to ASTM D1998, which is a wall-thickness standard at heart; the HDPE tank wall thickness guide explains the sizing logic and why the headspace is where a wall ages, and the freeboard sizing guide works out the usable volume once thermal expansion is accounted for. The floor is the widest Snyder makes, so the pad matters more than the height: 161,129 pounds on a 165 inch circle at the rating needs a slab designed for the load and in contact with the whole floor, as the concrete pad sizing guide, because a tank this wide spans any hollow in a gravel base and cracks there when full; the empty tank is strapped against wind. The tank sizing calculator tells you whether 13,800 gallons covers the draw, and the tank sizing guide covers days of supply.

Grades on the 165 x 184 inch tank, and the sizes beside it

The N43 and N45 are the certified 1.5 and 1.9 walls in this same shell, for coagulants and brines as delivered and for ferric at strength. The 5350000N39 is this same rating at 12,500 gallons on a 142 inch base 14 inches taller, and the 5370000N39 stands 15,000 gallons on a 143 inch base at 234 inches for a site with height and less floor.

Torn between two rows? Call 866-418-1777 with the liquid and the ceiling height, or ask for a quote on both and compare the freight.

Ports and access

• Access: 24 inch lid, 184 inches up, wide enough to enter for cleaning; filled by truck through a dip tube, vented outside on anything that fumes, and size the vent for a tanker's unload rate.
• Outlet: specify the bulkhead fitting for the liquid when ordering; a flexible connector at the bulkhead, an expansion joint in the run, and a valve on its own support off the slab.
• Service limit: 120 F / 48 C.
• Listing: ASTM certification.

The white wall shows the level in daylight; fit a sender read at ground level so nobody climbs for a number, and fit a low-level float switch so a pump never runs dry. Mount the pump below the outlet so it primes by gravity, keep the lid closed against vapor loss, and keep the tank out of direct sun where the liquid is light-sensitive. In a cold climate the outlet valve and the first run of pipe are insulated or drained; the body takes ice from the top down without harm.

Receiving a tanker

The driver's pump can deliver faster than the lid vent can breathe, so the vent is sized for the unload rate or the fill goes through a dedicated top bulkhead with its own vent line. The fill pipe runs to the floor so the liquid does not free-fall and foam. The first delivery into a new tank is watched from start to finish, with the slab edge and the outlet fitting checked as the level climbs, and each delivery after it is logged with its date and strength.

Typical duty

Alum and fertilizer solution delivered two tankers at a time at plants and farms that need the certification on file and have floor to spare, well storage for a community system under a lower roof, a rain cistern under a very large roof, and a fire reserve of the kind the fire-water reservoir design guide describes, where the low center of gravity counts. One liquid per tank, labeled.

Freight to your ZIP

At 165 inches across the 3030100N39 is oversize freight (NMFC 156600) on a flatbed at a lane rate, wide enough to need an escort on some routes, so the estimator's lane matters; the freight cost estimator prices the move to your ZIP, and the price on this page is before freight. A crane sets 2,800 pounds on the slab, and the slab is checked flat before the tank lands. Fill it to the lid once, hold it, check the outlet fitting, and keep the certification paperwork with the project file. The first fill is the only cheap time to find a problem, so do it in daylight with someone watching the base.