Snyder Industries 4000 Gallons HDPE Vertical Liquid Storage Tank with ASTM Certification

The middle wall, certified, on the ten foot base

A water-rated wall is for water and nothing heavier; the chemical wall is what concentrated acid needs; a 1.5 wall is the middle, sized for brine, fertilizer solution and coagulant as delivered and every water application, with margin, and 810 pounds of resin is what that takes on this wide, low shell. The certificate cites ASTM D1998, and what it certifies is the wall; 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. Full, it puts 50,040 pounds on a 120 inch circle at the rating, which a slab in full contact carries, and the low shape puts it there without a lever arm. The 4,000 gallon vertical tank buyers guide compares the shapes at this volume across makers; the tank sizing calculator tells you whether 4,000 gallons covers the draw, and the tank sizing guide covers days of supply.

Grades on the 120 inch base, and the sizes beside it

The N45 is the certified 1.9 wall, 190 pounds heavier and 4 inches shorter on the sheet, for ferric at strength and the heavy brines; the N42 is cross-linked polyethylene for oxidizers at that weight, and the N40 and N46 the lighter cross-linked and linear grades at this tank's weight. The 5190000N43 is this same certified 1.5 wall stood up on a 90 inch base at 163 inches for a small pad, and the 7360000C34 holds 4,100 gallons on a 102 inch base at 130 inches.

Picked the 4000 gallon tank? Add it to your cart above; freight is quoted to your ZIP before you pay anything.

Outlet and manway

• Access: 18 inch threaded, vented manway, 104 inches up; filled by truck through a dip tube, vented outside on anything that fumes, and size the vent for a tanker's unload rate.
• Outlet: name the liquid when ordering so the bulkhead fitting matches it; flex at the bulkhead, an expansion joint after it, and the valve braced off the slab so the fitting carries nothing.
• Service limit: 120 F / 48 C.
• Listing: ASTM certification.

The white wall shows the level in daylight; a float switch for low level protects a pump, and the low shape keeps the suction flooded to the last few inches. The pump sits below the outlet so it primes by gravity; the manway stays closed; a light-sensitive liquid stays out of the sun. In a cold climate the outlet valve and the first run of pipe are insulated or drained.

Taking a tanker load

A tanker unloads faster than the manway can breathe, so the vent is sized for the pump or the fill takes a dedicated top bulkhead with its own vent. Run the fill pipe to the floor so the liquid does not free-fall and foam. Somebody stands at the tank for the whole of the first delivery, watching the slab edge and the outlet fitting as the level rises, and every delivery after that goes in the log with a date and a strength.

Who buys this tank

Coagulant, brine and fertilizer solution delivered by tanker at plants and farms that need the certification on file and have a low roof, well storage, 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.

Delivery day

At 120 inches across the 7421100N43 is oversize freight (NMFC 156600) on a flatbed at a lane rate; the freight cost estimator prices the lane to your ZIP; the figure listed here is before freight. A forklift with long forks or a small crane sets 810 pounds on the slab. Fill to the manway, hold, inspect the outlet fitting, and keep the certificate where the project file lives. Keep the delivery paperwork with the tank; the serial number on the shell is what a warranty claim starts from.