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Frequently Asked Questions About Bunded Tanks

Frequently Asked Questions About Bunded Tanks

Not everyone knows what bunded tanks are or what they are for. If someone will ask you something about it, it is almost very certain that there is going to be another follow-up question to that query. Regardless of the level of knowledge you have about this type of storage option for liquids, you can check out the following.

We gathered some of the most frequently asked questions about bunded storage tanks. By doing so, we can help you choose the right and the most practical liquid storage solution for your home or business.    

Before anything else, we need to know first what a bunded oil/fuel tank is?

A bunded storage tank for liquid is perhaps the safest and one of the most secure ways to store liquid. They are basically a tank to hold liquid. A tank that is literally within another tank.

Why so?

Bunded tanks are designed that way with a purpose. The bunded layer or the outer tank will protect the inner tank, which depending upon your choice may fill it with fuel or any petrochemical product. This part of the tank is designed to hold 110 percent of the contents of the inner tank, safeguarding it in the event that there is a spillage.  

Do You Need a Bunded Tank?

We have some regulations that will necessitate you to make use of special storage containment, this includes a bunded tank. If your current storage containers can hold a certain volume of fuel or petrochemical products at home or in your business facility, the said regulations indicate that you store them up in a bunded fuel tank, in an Intermediate Bulk Container, or bowers. The secondary container of which should have a holding capacity of 110% of the content’s capacity.  

Are There Any Building Regulations That Apply To Bunded Fuel Tanks?

Building regulations in the country necessitate that when you install a new tank, or if you are going to have your old one replaced, you must see to it that it is capable of holding 2,500 liters. And, it must be bunded.

Furthermore, if your tank size is under 2,500 liters and it supplies heating oil to a single family dwelling, it has to be bunded also. The same holds true also if the location falls into one of the categories listed below, it must be bunded.

  • Controlled water is within a 10-meter range.
  • An open drain is in close proximity, so there is the possibility of spillage run in
  • Spring or borehole is within a 50-meter range
  • A loose manhole cover is within range, there is a possibility of spillage run in.

How Close to a Structure or Building Can Your Tank Be?  

If there are regulations that tell you in what instances you should use a bunded tank, there are also regulations that deal with how close they should be to a nearby building from where you install them. Fuel storage tanks with 3, s400 liter capacity should be complying with the following rules:

760 mm boundary clearance. Should there be no possible way to achieve this, there has to be at a 30-minute wall that is fire-resistant. This must extend  300 mm above, at least and must be past the tank ends.

Don’t install your tank within 1.8 m or closer to a structure, facility or building. If there is no way to achieve this, once again it is a requirement that you have a 30- minute fire-proof wall with 300 mm extending above and beyond the tanks. Additional cladding would be necessary so as to create a needed barrier that is fireproof for a minimum time of 30 minutes.  

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