Snyder Industries 120 Gallon Vertical Dual Containment Double Wall Tank Sulfuric Acid Resin

Acid grade plus containment

A tank sold for sulfuric acid is built and fitted for the acid's density and its exotherm, with fittings chosen for the acid rather than for general service; confirm the concentration you buy against the chemical compatibility database, because sulfuric at different strengths behaves as different chemicals. Never add water to a tank that holds acid; the fill order is water first, acid second. The double wall catches a primary leak in the interstitial space, so the tank stands beside the dosing pump inside a building with no spill pallet and no berm; the SPCC 40 CFR 112 compliance walkthrough covers where that satisfies a spill plan on its own, and the Captor double wall freeboard sizing guide works out how much of the nominal 120 gallons is usable once expansion and the interstice are accounted for. The tank sizing calculator sizes a day tank to the pump's rate, and the tank sizing guide covers the reserve.

Snyder's small double wall tanks

The N51 and N42 are the general chemical and cross-linked grades on a 34 inch base, 20 pounds lighter, for caustic, coagulants and oxidizers. The 5710102N30 is the next size up in the sulfuric grade, 150 gallons at 62 inches, and the 5991002N48 is the 80 gallon double wall on a 24 inch base.

Comparing across brands too? Call 866-418-1777; we carry Norwesco, Snyder, Chem-Tainer, Enduraplas and Bushman and will say which one fits, or price the freight first.

Openings, alarms and the interstice

• Access: 14 inch threaded, vented lid on the primary; vent it outside through a line the acid mist cannot corrode, and fill by hose or tote pump.
• Outlet: through both walls together, with an acid-rated transition supported off the floor; specify the fitting when ordering.
• Service limit: 120 F / 48 C; acid that arrives warm from dilution is watched against that limit.

A non-contact radar sender on the lid is the usual level answer for sulfuric, since wetted parts rule out most standard senders. The interstitial space is the leak alarm: a float switch, a look into the port each shift, and a logged check each week; anything found there takes the tank out of service that day. Full, the tank puts 1,902 pounds on a 31 inch circle; a slab or a paver pad in full contact supports that, and the concrete pad sizing guide covers a shared slab.

Who buys this tank

Sulfuric acid day tanks for pH control at water and wastewater plants, and for process use at industrial sites, inside buildings and at sites an inspector visits. Label the tank for the fire inspector and the workplace inspector at once, and keep the approach clear for the tote or the carboy.

Delivery day

The 5700102N30 ships palletized as LTL freight (NMFC 156600-03) at a class rate; the freight cost estimator shows it for your ZIP, and the listed price is before freight. Two people carry 120 pounds. Water-test the primary, confirm the interstice stays dry through the hold, then drain and dry completely before the first acid fill; water left in an acid tank is the exotherm nobody wants. Keep the delivery paperwork with the tank; the serial number on the shell is what a warranty claim starts from.