Snyder Industries 500 Gallon HDPE Vertical Liquid Storage Tank with ASTM Certification

Two totes, certified, under six and a half feet

Five hundred gallons is two totes with room for expansion and freeboard, and a 53 inch base under 77 inches holds it beside a dosing skid without a forklift aisle. The wall is rated for nearly twice the density of water and certified under ASTM D1998, which is the standard these tanks are specified to; the HDPE tank wall thickness guide explains the D1998 sizing logic and why the vapor headspace is where a wall fails first, and the freeboard sizing guide works out how much of the nominal 500 gallons is usable once thermal expansion is accounted for. Full, it puts 7,923 pounds on a 53 inch circle at the rating, which a slab in full contact carries. The tank sizing calculator sizes the tank to feed rate and delivery interval, and the tank sizing guide covers the reserve.

Grades on the 53 x 77 inch tank, and the sizes beside it

The N42 is cross-linked polyethylene for hypochlorite and the other oxidizers, and the N48 and N51 are other linear grades, all at this tank's weight in the same shell. The 5770100N45 is the certified 440 on this same 53 inch base, 8 inches shorter, and the 1800000C34 holds 550 gallons in the general grade on a 48 inch base at 75 inches.

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.

Bulkheads and lid

• Access: 18 inch threaded, vented manway; hose or tote pump fill through a dip tube; vent outdoors on a fuming liquid.
• Outlet: name the chemical when ordering so the bulkhead fitting matches it; a flexible transition to the pump suction and a valve supported off the floor.
• Service limit: 120 F / 48 C.
• Listing: ASTM certification.

A white 77 inch tank shows its level in daylight; a low-level switch protects the pump. Mount the dosing pump below the outlet so it primes by gravity, keep the manway closed against vapor loss, and keep the tank out of direct sun where the chemical is light-sensitive. A 53 inch tank fits a standard spill pallet, which is where a single wall chemical tank stands.

Day-to-day duty

Treatment chemicals at a small system that needs the certification on file, brine for a softener bank, acid and inhibitor feed at a cooling tower, polymer make-down on a skid, and, with water in it, a well buffer or one cell of a small fire reserve. One chemical per tank, labeled.

From the plant to your site

The 5780100N45 ships palletized as LTL freight (NMFC 156600-01) at a class rate; the freight cost estimator quotes it to your ZIP, and what is listed here is the price before freight. Two people carry 141 pounds, and at 53 inches across it needs a wide door. Fill it to the manway once, hold it, check the outlet fitting, and keep the certification paperwork with the project file. Write the fill date on the manway with a paint marker; it answers the first question anyone asks about a tank.