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The Double Wall Jacketed Tank - The Secure Underground Fuel Tank

April 13, 2012 | Comments: 0 | Views: 180

Using an underground fuel tank is a convenient and space-saving means to store petrol for businesses that do not have the space to accommodate an above ground fuel tank. This type of tank is commonly used by industrial businesses that require large amounts of fuel to be available on site as its storage capacity ranges from 1,000 litres to 200,000 litres. However, using underground fuel tanks comes with the risk of rust and corrosion. Rusting and corrosion can lead to leakage of the petrol, which will then contaminate the soil and ground water.

The double wall jacketed tank is a type of underground tank that minimises the risks of rust, corrosion and leakage. The double wall jacketed tank comprises of a steel primary inner tank enclosed within a 360-degree fibre glass reinforced plastic outer tank, providing effective protection against internal and external corrosion.

The double wall structure also provides protection against leakage. The steel primary inner tank is built for tightness and durability, making spillage almost impossible. But if any leakage should occur, the outer wall holds the fuel in and prevents it from coming in contact and contaminating the soil and ground water. In this article we discuss the features of the double wall jacketed tank that makes it safe to use.

1. Its fibre glass reinforced plastic or FRP laminate maintains a hard, seamless integrity when subjected to ambient temperature extremes and does not become brittle or soft below or above the ground.

2. The entry point of the fuel contains aluminum foil that provides a minimum clearance, free flowing 360-degree interstice.

3. Its inner primary welded steel tank is manufactured to U.L. Listing requirements. It provides long term structural safety and is compatible with a wide range of products including motor fuels, heating oil, methanol, ethanol, alcohol and alcohol blends.

4. The double wall jacketed tank has a non-corroding collar that provides solid attachments for piping containment sumps.

5. All outer fibre glass jackets are tested for pin holes with holiday tester set at 35,000 volts, thus ensuring that the integrity of the outer wall is maintained for a long period for time.

6. The double wall jacketed tank has a steel monitor access tube that is welded liquid tight into the steel tank. In the event of a leakage or breach to the inner or outer tank, the spilling liquid flows into the monitor access tube which can be monitored by various methods. This prevents the petrol from leaking completely and contaminating the area.

7. Installation of this type of underground fuel tank is simple and special backfill procedures are not required to maintain structural integrity.

8. Special configurations and multiple compartments can also be installed to meet different fuel storage requirements.

Some final words

With its innovative features and durable structure, the double wall jacketed tank has proven to be a safe underground fuel tank that has reduced risks of corrosion, rust, leakage and damage to the environment. If you are still unsure of its safety or if you are looking for an alternative fuel storage facility for your business, talk to a trusted fuel tank supplier as they can help you determine which storage system is appropriate for your requirements. They can also give you advice on how to safely manage and maintain underground fuel tanks.

This article was written by Tom Jerrat for DTE Group. DTE Group is the leading provider of self bunded tanks and fuel tanks in Perth, Australia. DTE Group products are suitable for applications in the petroleum, chemical, industrial, power, process and mining industries. Visit for more details and product information

Source: EzineArticles
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