Tank Solutions – Fuel
Melbourne Markets
A 110,000L self-bunded, double-wall above-ground fuel tank, relocatable as the site changes.
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Tank Solutions – Fuel
Self-bunded tanks for diesel and fuel
Self-bunded tanks are double-wall steel bunded tanks with the bund built in, made to AS 1940 and AS 1692 at our ISO 9001 factories in Tomago NSW and Kwinana Beach WA. A self-bunded diesel tank needs no concrete bund, collects no rainwater to dispose of, and can be relocated as your site changes. Need a bigger or underground tank? Compare all our diesel fuel storage tanks.
Get a price
Tell us roughly what you need. A sales engineer for your state replies within 2 business days.
Have drawings or a full spec? Use the detailed quote form, or call NSW +61 2 4964 8270 or WA +61 8 9434 1707.
Benefits
The double wall is the bund. That minimises civil works on site, and because the tank is self-contained it can be moved as the site changes, which a fuel storage tank in a concrete bund can’t.
No civil bund
The integral wrap-style steel bund replaces earthen or concrete bunds.
No rainwater to dispose of
Nothing collects in an open bund, so there’s no contaminated water to catch and treat.
Relocatable
Self-contained, so the tank can be moved to any practical location as the site changes.
Built for pumping rates
The cylindrical shell with dished and flanged ends is designed for high pumping rates and resists transport damage.
Overfill protection standard
Cut-off, anti-siphon valve and audible safe-fill alarm on every tank.
Made to AS 1940 and AS 1692
Manufactured to meet or exceed industry and statutory requirements.
Where it’s used
- Bulk above-ground fuel storage
- Transport and fleet depots
- Mining and remote camps
- Marine and aviation
- Genset day tanks and standby generator fuel
- Construction and temporary sites
What it stores
- Diesel and other Class 3 PG III, C1 and C2 liquids, up to 110,000L
- Petrol (motor spirit) and other Class 3 PG II liquids, up to 55,000L
- Jet fuel, Avgas, kerosene and motor oil
- Many petrochemical and chemical liquids
What is a self-bunded fuel tank?
A self-bunded tank is a tank inside a tank. The inner steel tank holds the fuel, and a second steel wall wrapped around it is the bund. If the inner tank leaks, the outer wall contains the fuel. Other bunded fuel tanks sit inside a concrete or earth bund built on site; because the containment is part of a self-bunded tank, you don’t build one around it.
Self-bunded vs a tank in a concrete bund
| Feature | Self-bunded tank | Single-wall tank in a concrete bund |
|---|---|---|
| Civil works | No bund to build | Concrete bund built on site |
| Rainwater | No open bund, so nothing to collect | Rainwater collects in the bund and must be caught and disposed of |
| Relocation | Can be moved as the site changes | Fixed with the bund |
| Outlets | All openings above maximum liquid level (AS 1940 s5.9); no gravity feed | Bottom outlets for flooded suction and manifolded stock control |
| Capacity per tank | Up to 110,000L diesel or 55,000L petrol | Up to 150,000L, with tanks side by side in one bund |
| Best for | Depots, mines, data centres and sites that may change | Fuel farms and sites with an existing bund |
Single-wall details from our single-wall horizontal tank page.
Self-bunded diesel tanks and petrol tanks
The same double-wall tank stores diesel or petrol. What changes is how much one tank may hold, because AS 1940 treats flammable petrol more strictly than combustible diesel.
Self-bunded diesel tanks
Diesel is a Class C1 combustible liquid under AS 1940. Approvals allow up to 110,000L of Class 3 PG III, C1 and C2 liquids in one self-bunded diesel storage tank.
Typical sites
- Standby generators and genset day tanks, including data centres
- Mines and remote camps
- Transport and fleet depots
- Construction and temporary sites
Self-bunded petrol tanks
Petrol (motor spirit) is a Class 3 PG II flammable liquid. Approvals allow up to 55,000L of it in one tank.
- Flammable liquids need larger separation distances than diesel. Check them for your site against AS 1940 or with your consultant.
- Where space is tight, a Fireguard® 4-hour fire-rated tank can cut separation distances by as much as 50%.
- One tank can hold diesel and petrol in separate compartments, configured to suit your site.
The tanks also store jet fuel, Avgas, kerosene, motor oil and many petrochemical and chemical liquids. Tell us what you’re storing and we’ll confirm the tank suits it. For corrosive chemicals such as acids, caustic soda and hypochlorite, see our FRP self-bunded chemical tanks.
Self-bunded tank sizes: 2,000L to 200,000L
Every tank is built to order at the capacity, shape and compartments your site needs. Tell us the volume and fuel, and we’ll send drawings with the dimensions and weight for your approval.
| Item | Self-bunded steel tank |
|---|---|
| Capacity | 2,000L to 200,000L |
| Diesel per tank | Up to 110,000L of Class 3 PG III, C1 and C2 liquids |
| Petrol per tank | Up to 55,000L of Class 3 PG II liquids |
| Shape | Cylindrical or rectangular |
| Compartments | Multiple compartments, configured to suit your site |
| Finish | Enhanced paint and external protective coatings available |
From the self-bunded steel tank data sheet (TD_TDS_024 Rev 0). Download the data sheet (PDF).
What’s supplied
Supplied as standard
- Overfill protection: mechanical or electronic cut-off
- Anti-siphon valve
- Audible safe-fill level alarm
- Fire-rated ball valve; emergency venting where applicable
- Ladder and platform
- Cradles (150 mm)
- Access manways
- Fill, dip and vent sockets
- Drain point and lifting lugs
- Dished and flanged ends; industrial aluminium finish
Options
- Enhanced paint and external protective coatings
- Cylindrical or rectangular
- Multiple compartments
- Pumping equipment, fuel management and automatic tank gauging
- Lighting, power generation, skid frame and custom fittings
Warranty
10 years on structural integrity when operated free of water and adequately maintained, and 1 year on materials and workmanship. Tanks are designed for ambient temperature and atmospheric pressure, not as pressure vessels. A relocated tank needs recertifying to keep the warranty.
Downloads
Built to AS 1940 and AS 1692
Two Australian Standards decide whether an above-ground fuel storage tank passes. Our self-bunded tanks are manufactured to exceed AS 1692, in accordance with AS 1940.
AS 1940: how the fuel is stored
AS 1940 is the standard for storing and handling flammable and combustible liquids, and it is what your site is usually assessed against.
- Spill containment. Since the 2017 edition a bund generally needs to hold at least 110% of the largest tank. On a self-bunded tank the outer steel wall is that containment.
- Openings above the liquid level. Every opening sits above the maximum liquid level, as Section 5.9 requires, so a broken fitting can’t drain the tank.
- Overfill protection and venting. Cut-off, anti-siphon valve, audible safe-fill alarm and emergency venting where applicable come fitted.
- Location and separation. Distances to buildings and boundaries depend on the fuel class and the quantity stored, so they are set for each site.
Read our plain-English AS 1940 guide, or download our AS 1940 site checklist (PDF) to walk your site with.
AS 1692: how the tank is built
AS 1692 is the standard for steel tanks for flammable and combustible liquids. It covers design and construction, including tanks with built-in secondary containment.
| AS 1692 | Manufactured to exceed AS 1692; barrel wall thickness to Australian Standards. See what AS 1692 covers |
|---|---|
| AS 1940 | Storage and handling of flammable and combustible liquids; openings above maximum liquid level per Section 5.9 |
| Regulators | Integral wrap-style steel bund meets State and Territory regulatory requirements |
| ISO 9001 | Quality management certification at Tomago NSW and Kwinana Beach WA |
Local councils, state dangerous goods regulators and your insurer may have their own requirements. This section is general information, not compliance advice.
Self-bunded fuel tanks for sale, built to order
Our self-bunded fuel storage tanks are built to order at Tomago NSW and Kwinana Beach WA and delivered Australia-wide, with every quote priced with freight to your site.
Built to order
We don’t hold stock. Each tank is built to your capacity, compartments and fittings, so ask for the current lead time when you request a quote.
Two factories, east and west
Built at our ISO 9001 certified factories in Tomago NSW and Kwinana Beach WA.
Delivered Australia-wide
We deliver anywhere in Australia, and your quote includes freight to site so the delivered cost is clear before you order.
Freight coordinated for you
We can coordinate all the freight requirements to get the tank to your site. Tanks sit on 150 mm cradles with lifting lugs.
No bund to build first
The tank arrives with its containment, so there’s no concrete bund to pour and cure before it goes into service.
How a tank gets to site
1
Send your spec
Fuel, volume, compartments and site. A sales engineer covering your state replies within 2 business days.
2
Drawings
We confirm size, fittings and options, and send drawings for your approval.
3
Manufacture
Built at Tomago NSW or Kwinana Beach WA, both ISO 9001 certified.
4
Delivery & set-up
Delivered to site, with no bund to build.
Where it’s been used
Data centres
Above-ground steel tanks to AS 1940 for standby generator fuel, including genset day tanks.
T90 Fireguard® 4-hour tanks
Where separation distances are tight, the 4-hour Fireguard® version can cut them by as much as 50%.
Self-bunded tank questions
Can’t see yours? Call NSW +61 2 4964 8270 or WA +61 8 9434 1707.
A tank inside a tank. The inner steel tank holds the fuel and a second steel wall around it acts as the bund, so a leak from the inner tank is contained without a separate concrete or earth bund.
No. The integral wrap-style steel bund meets State and Territory regulatory requirements, so there are no earthen or concrete bunds to build and no rainwater collecting in an open bund.
From 2,000L to 200,000L, cylindrical or rectangular. Each tank is built to order at the capacity your site needs, within the per-tank limits of 110,000L for diesel and 55,000L for petrol.
Approvals allow up to 110,000L of Class 3 PG III, C1 and C2 liquids such as diesel, and up to 55,000L of Class 3 PG II and PG III liquids such as petrol.
Yes, in sizes up to 55,000L. Petrol is a flammable liquid, so it needs larger separation distances than diesel under AS 1940. A Fireguard® 4-hour fire-rated tank can cut those distances by as much as 50%.
Yes. Multiple compartments are available, configured to suit what your site needs.
They are manufactured to exceed AS 1692, the standard for steel tanks for flammable and combustible liquids, in accordance with AS 1940, the standard for storing and handling them.
No. Every tank is built to order to your capacity, compartments and fittings. Ask for the current lead time when you request a quote, and a sales engineer covering your state will reply within 2 business days.
We deliver Australia-wide and can coordinate all the freight requirements to your site. Every quote is priced with freight, so tell us about any site access restrictions in your enquiry.
No. All tank openings sit above the maximum liquid level, as AS 1940 Section 5.9 requires, so the tank can’t gravity feed or be manifold-balanced.
Yes. It can be moved to any practical location. If it’s relocated, it needs recertifying to keep the warranty.
Mechanical or electronic cut-off, an anti-siphon valve and an audible safe-fill alarm that warns the delivery driver, plus a fire-rated ball valve and emergency venting where applicable.
Keep water out. Water in diesel lets microbial growth (diesel bug) start, so check for water regularly and remove it through the tank’s drain point. Your fuel supplier can advise on testing. The structural warranty also requires the tank to be operated free of water.
10 years on structural integrity, provided the tank is operated free of water and adequately maintained, and 1 year on materials and workmanship.
Yes. Fireguard® tanks are rated to the SwRI 4-hour fire test and can reduce separation distances by as much as 50%.
Request a quote
A few details up front means your quote comes back faster, from the right engineer for your state. We price each tank to your spec, with no obligation, and reply within 2 business days.
Thanks there, your enquiry is in.
Your enquiry has gone to our sales team. A sales engineer will be in touch within 2 business days.
Need it sooner? Call NSW +61 2 4964 8270 or WA +61 8 9434 1707.
Please email your drawings and documents to sales@tanksolutions.com.au with your name in the subject line, so we can add them to this enquiry.
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