Snyder Industries 1500 Gallon HDLPE Vertical Double Wall Liquid Chemical Storage Tank with ASTM Certification

Containment, certified, at chest height

A double wall tank carries its containment inside the outer shell, so the 93 inch footprint is the whole footprint and the tank can stand inside an occupied building where a spill must never reach a floor drain; the SPCC 40 CFR 112 compliance walkthrough explains which spill-plan cases a double wall tank satisfies by itself. The certification is against ASTM D1998, the standard rotationally molded polyethylene 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 Captor double wall freeboard sizing guide works out how much of the nominal 1,500 gallons is usable once thermal expansion, chemistry and the interstice are accounted for. The rated chemistry for the resin is listed below; check the liquid at its concentration in the chemical compatibility database.

Grades and shapes in the 1,100 to 1,550 gallon double walls

The N52 is the opaque version built for sodium hypochlorite, 40 pounds lighter; the N42 is cross-linked polyethylene for oxidizers and warm liquids, an inch shorter. The tall double walls put the volume on a 76 inch base: the 5470000N48 at 1,100 gallons and 104 inches, and the 5490000N30 at 1,550 gallons and 136 inches in the sulfuric acid grade, for the room with height and no floor.

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.

Openings and the interstice

• Access: 18 inch threaded, vented manway on the primary, at chest height; vent outside on anything that fumes, fill through a dip tube.
• Outlet: one penetration through both walls, the transition on its own support; order the fitting in the material the chemical calls for.
• Service limit: 120 F / 48 C.
• Listing: ASTM certification.

There are two levels to watch: the primary, with a sender chosen for the chemical per the level gauge selection guide, and the space between the walls, which serves as the leak alarm and gets a switch, a shift check at the port, and a weekly log entry. A wet interstice is a failed primary, and the tank is drained the same day. Full, the tank loads a 93 inch circle to 23,769 pounds at the rating: a slab in full contact under the whole floor. The tank sizing calculator matches the volume to feed rate and delivery interval, and the tank sizing guide covers the reserve.

Typical duty

Caustic, coagulant and acid storage at water systems that cannot build a berm, chemical storage inside occupied buildings with a low ceiling, and bulk chemical at a plant that needs the certification on file. One chemical to a tank, a label both inspectors can read, and the manway kept closed against vapor loss.

Freight to your ZIP

At 93 inches across the 5990302N45 ships as LTL freight (NMFC 156600-03), palletized, at a class rate the freight cost estimator shows for your ZIP; the listed price is before freight. A forklift with long forks handles 970 pounds. Water-test the primary, confirm the interstice stays dry through the hold, then drain and dry before the first chemical delivery, and keep the certification 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.

Compatibility list

Liquids the maker rates this resin for, with concentration limits and the wetted fitting and gasket to specify. Confirm your own concentration and temperature on the chemical page or in the chemical compatibility database before ordering.

• sulfuric acid at 98% (CPVC fittings, Viton gaskets)
• hydrochloric acid at 37% (PVC, Viton)
• phosphoric acid at 85% (PVC, Viton)
• hydrofluoric acid at 48% (PP/PVC, Viton)
• hydrofluosilicic acid at 26% (PP/PVC, Viton)
• sodium hypochlorite below 16.5% (PVC, Viton)
• hydrogen peroxide at 50% (PVC, Viton)
• peracetic acid at 30% (316SS fittings, Aflas gaskets)
• ferric chloride at 50%
• ferric sulfate at 60%
• ferrous sulfate at 20%
• aluminum sulfate at 50%
• acetic acid at 60% (PP/PVC, EPDM)
• sodium carbonate at 30%
• potassium carbonate at 50%
• saturated potassium hydroxide
• calcium chloride at 40%
• magnesium chloride at 30%
• sodium thiosulfate at 40%
• sodium bisulfate (PVC/PP, EPDM)
• sodium bisulfite (PVC/PP, EPDM)
• polyaluminum chloride (PVC, EPDM)
• zinc orthophosphate (PP/316SS, EPDM)
• DEF at 32.5% (316SS fittings, EPDM)
• urea solution at 50% (PP/PVC, EPDM)
• ethylene glycol at 100% (PVC, EPDM)
• propylene glycol (PP/316SS, EPDM) and ozonated water up to 10 PPM (PVC, EPDM). Always verify your specific concentration and temperature against the OEM chart and our