Snyder Industries 10500 Gallon HDPE Vertical Liquid Storage Tank with ASTM Certification

Forty-four tons of water on a twelve foot circle

Full of water, the 5330000N43 puts 87,570 pounds on a 142 inch circle, and a rotationally molded floor bears on the whole pad, so the pad is what matters: an engineered slab in full contact under the entire floor, screeded flat, with no pipe trench or drain crossing under it. An empty tank gets strapped, because 169 inches of empty polyethylene is a sail, and the straps go slack once it is full. The certification is against ASTM D1998, and the way a tank meets it is in the wall; the HDPE tank wall thickness guide explains the sizing logic and why a wall this tall is inspected from the top, in the headspace, and the freeboard sizing guide works out the usable volume once thermal expansion is accounted for. The 10,500 gallon vertical tank buyers guide compares the shapes at this volume across makers; the tank sizing calculator tells you whether 10,500 gallons covers the draw, and the tank sizing guide covers days of supply.

Grades on the 142 x 169 inch tank, and the sizes beside it

The 5330000N45 is the certified 1.9 wall, 600 pounds heavier, for ferric at strength and the heavy brines. The N29 is another grade at this tank's weight, and the C34 and C37-BLACK are the general-grade tanks, 250 pounds lighter, in white and black. The 32026 is the 10,000 gallon dark green tank 2 inches shorter, and the 32074 is the 12,000 gallon step up at 197 inches.

Want us to check the fit? Send the site dimensions to 866-418-1777 or through a written quote request and we will confirm the tank, the pad and the freight.

Ports and access

• Outlet: specify the bulkhead fitting for the liquid when ordering; a flexible connector between the bulkhead and hard pipe, an expansion joint, and the valve supported off the slab. For a fire reserve a large outlet is specified at order.
• Access: 18 inch threaded, vented manway, 169 inches up, reached from a fixed platform with a rail.
• Service limit: 120 F / 48 C.
• Listing: ASTM certification.

A tank this size moves a great deal of air as it fills, empties and warms in the sun, so the vent is sized for the pump-out rate and the fill rate, not left at the manway default, and it is screened. Fit a sender read at ground level so nobody climbs for a number. In a cold climate the outlet valve and the first run of pipe are insulated or drained; at this volume the body freezes slowly and from the top down.

Typical duty

Community and municipal water storage where the certification has to be on file, a fire reserve of the kind the fire-water reservoir design guide describes, irrigation storage on a large property, and brine, fertilizer solution or coagulant as delivered at the 1.5 rating. One liquid per tank, labeled.

Freight to your ZIP

At 142 inches across and 169 inches long on the deck the 5330000N43 is oversize freight (NMFC 156600) on a flatbed at a lane rate, with an escort on most routes; the freight cost estimator gives the flatbed number for your ZIP, and the listed price is before freight. A crane sets 2,500 pounds upright on the slab. Fill it to the manway once, hold it, check the outlet fitting, and keep the certification paperwork with the project file. A photo of the tank on its pad, full, on day one is worth keeping; it is the baseline every later inspection is compared against.