Snyder Industries 330 Gallon HDPE Vertical Liquid Storage Tank with ASTM Certification

The squat 330

A 47 inch base under 50 inches cannot tip, so the tank needs no strap, keeps a pump's suction flooded to the last few inches, and puts the manway where a wash-down wand reaches the whole floor at changeover. Sized for a liquid almost twice as dense as water, the wall is designed to ASTM D1998, the standard written for rotationally molded polyethylene tanks; the HDPE tank wall thickness guide explains the D1998 sizing logic and why the vapor headspace is where a wall fails first. Full, it puts 5,229 pounds on a 47 inch circle at the rating; a paver pad or a slab in full contact carries that, and the concrete pad sizing guide covers a shared slab. The tank sizing calculator sizes a day tank to the pump's rate and the refill schedule, and the tank sizing guide covers the reserve.

Grades on the 47 x 50 inch tank, and the sizes beside it

The N42 is cross-linked polyethylene for hypochlorite and the other oxidizers, and the C26 is the general grade, both at this tank's weight in the same shell; the N52 is the opaque heavy-wall version, 23 pounds heavier. The 5750100N45 holds the same 330 gallons on this base 18 inches taller. The 1011200C26 is the doorway 300 on a 35 inch base, and the 5760100N42 is the cross-linked 360 on a 53 inch base.

Want us to check the fit? Send the site dimensions to 866-418-1777 and we will confirm the tank, the pad and the freight.

Ports and access

• Access: 18 inch threaded, vented manway at chest height; filled through a dip tube from a hose or tote pump, with the vent run outdoors when the liquid fumes.
• Outlet: specify the bulkhead fitting for the chemical when ordering; flex hose to the pump suction, valve braced off the floor so the fitting carries no pipe weight.
• Service limit: 120 F / 48 C.
• Snyder line: ASTM.

A white tank shows its level in daylight; a float switch at low level shuts the pump off before it runs dry. The dosing pump sits below the outlet so it primes by gravity, the manway stays closed against vapor loss, and a light-sensitive chemical stays out of the sun. A 47 inch tank fits a standard spill pallet.

Typical duty

Day tanks at small water systems with a low ceiling, chemical feed skids, polymer make-down at a package plant, brine for a softener, and, with water in it, a well buffer or one cell of the small reserve the fire-water reservoir design guide describes. One chemical per tank, labeled, rinsed at every changeover.

Freight to your ZIP

The 1008200N45 ships palletized as LTL freight (NMFC 156600-02) at a class rate; the freight cost estimator gives the number for your ZIP; the price shown here is before freight. One person carries 85 pounds. Check the manway and the outlet fitting, and fill it once with water to prove the seal. 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.