Plastic Tanks/

Double Wall Tanks

Double wall tanks store hazardous substances utilized in industrial processes in an inner tank while providing a secondary tank that is locked-on to the inner tank and serves to create a protective space between the inner tank and the outer tank. Offering high reliability and superior protection against harmful chemical spills and leaks, double wall tanks protect both the worker and the environment. In addition the double walls ensure that unwanted substances will not enter and mix with the substance within the tank as well.

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Assmann Corporation of America
Garrett, IN
Marshall, TX - 888-357-3181
Assmann Corporation is an NSF & ISO certified rotational molder of large and small double wall, vertical, horizontal and conical plastic tanks, and also chemical feed stations plus secondary containment basins. Our rotomolding process and extensive experience makes the difference... We offer many accessories, including full drain outlet, seismic restraints and more.
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Protank® Ltd.
Olive Branch, MS
866-776-8265
Since our beginning, we have provided top quality double wall tanks to our customers. With the expertise of our highly skilled engineering team, you can have any tank to your size and specifications. This ensures that the tank will fit your unique application and work just as you would like it. Call us today and tell us your specifications. We look forward to hearing from you and working with you.
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Agri-Industrial Plastics Company
Fairfield, IA
641-472-4188
Founded in 1978, Agri-Industrial Plastics Company has provided its customers with double wall tanks and other tanks. Agri-Plastics Company manufactures tanks in various colors, sizes, finishes and shapes to accommodate to the unique specifications of our customers. We also offer manufacturing services including CNC machining, blow molding, finishing & CNC trimming. We want to work with you!
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All Plastics and Fiberglass, Inc.
Mobile, AL
800-226-1134
For more than two decades, All Plastics and Fiberglass has provided superior quality products such as double wall tanks and excellent customer service. We have capabilities to quote on jobs that our competitors don't. Our products are the best that you can buy on the market. With the excellent design and engineering teams we have, we can make a tank to your exact specifications.
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Dakota Molding
Fargo, ND
701-281-0001
When choosing Dakota Molding for purchasing double wall tanks there are a lot of benefits including: economically produced large products, minimum design constraints, very low residual stresses, no polymer weld lines, product testing, color blending, design assistance, mold acquisition and sub assembly. Our products are ideal for industrial, recreational safety and merchandising use.
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Corrosion Resistant Technologies, Inc.
USA,
Multiple Locations - 800-245-3769
Corrosion Resistant Technologies is here to help improve your bottom line, from the safe transport of liquids and chemicals to the storage of them, CRT knows what you need and can provide the best product for your application. Go to our website and view our extensive product line including double wall tanks and the services we offer. We are excited to be your partner in business.
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Industry Information

Double Wall Tanks

Double wall storage tanks are beneficial for many different industries such as agricultural, pharmaceutical, forestry, mining, chemical processing, automotive and wastewater. With a wide range of chemical resistance, double walled tanks are often used as chemical tanks for substances including acetic acid, ferric chloride, calcium chloride, ethylene glycol, alcohol gasoline mixtures, transmission fluids, waste oil, antifreeze and diesel. A double wall tank's usefulness in industries depends on the type of substance they store. Double wall fuel tanks, for example, are useful for commercial, residential, industrial and petroleum industries.

Consisting of an inner tank referred to as a primary tank and an outer tank referred to as a secondary containment tanks, double wall tanks offer a secure system of protection. The inner tank stores the hazardous substance and a protective space, called an interstitial space or the area between two walls, is created between the inner wall and the outer wall. The protective space is filled with a non-hazardous substance as well as a liquid sensor that will detect any leakage from the inner tank. If any leakage is detected, the leak will travel through the substance until it reaches the liquid sensor, which is attached to a unique alarm system. Consisting of a strobe or standard controller, the alarm system will trigger and emit a loud sound. The outer wall is specifically designed to contain the leak or spill and prevent any possible damage that would ensue. Most double wall tanks come with a standard vented manway, which is a center vent or fitting that allows the chemicals to release fumes. The type of manway that a double wall tank uses depends on the substance to be stored. For example, non-vented manways are used for double wall tanks storing substances with harmful chemical fumes.

Double Wall Tanks
Walled Tank
Images Provided by Protank Ltd.
FRP Tanks
Reinforced Tank
Images Provided by Assmann Corporation of America