T11 portable offshore tank in its yellow lifting frame

Portable offshore tanks

IMDG T4, T11 and T14 tanks in DNV 2.7-1 offshore frames

A pressure-rated stainless steel tank inside a certified offshore lifting frame. One unit is approved for road, rail and sea and can be lifted by crane onto a vessel or platform, so the chemical stays in the same tank from supplier to point of use.

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2,900, 4,000 and 4,800 litres as standard; 8,000 to 20,000 litres to order
Stainless steel 316/316L
Working pressure 4 bar, test pressure 6 bar
Design temperature −20 to 65 °C
Frame certified to DNV 2.7-1 and EN ISO 10855
20-year design life

Which tank type

T11 is the general chemical tank and the one most customers need; it may also carry goods assigned to lower tank codes. T4 is used for aviation fuel (see Jet fuel tank). T14 is built to order for acids and other products that need a higher tank code. Tell us the UN number and we will confirm the tank type. Under the IMDG Code, a container of up to 3,000 litres is an IBC; above that it is a portable tank, covered by chapter 6.7.

Standard fittings

ManlidPressure and vacuum relief valve, set at 4.4 bar2 inch bottom outlet valve1 inch airline ball valveInspection hatchDipstick and accessWalkway and ladderData plates and markingsDocument tube

At a glance

Options

Earthing boss · Magnetic or float-dial level gauge · Flame gauze at the relief valve · Fall arrestor anchor · Sampling point · Bolted or clamped 18-inch manhole with nitrile gasket · Choice of gasket · Camlock adapter and dust cap · Certified four-leg sling set · Horizontal or vertical layout

How each tank is proven

Every design goes through design review, material inspection and approval, prototype testing, survey during manufacture and load testing, witnessed by a classification society.

Approvals

IMDG · ADR · RID · DNV 2.7-1 · EN ISO 10855 · IMO MSC/Circ.860

Standard sizes

2,900 L

1,995 × 1,995 × 2,300 mm, tare 1,800 kg, payload 4,700 kg, maximum gross 6,500 kg

4,000 L

1,995 × 1,995 × 2,570 mm, tare 2,000 kg, payload 6,000 kg, maximum gross 8,000 kg

4,800 L

2,200 × 2,200 × 2,570 mm, tare 2,100 kg, payload 7,900 kg, maximum gross 10,000 kg

Larger sizes, built to order

8,000 Lframe 2,991 × 2,438 × 2,591 mm, tare 3,000 kg, payload 12,000 kg, maximum gross 15,000 kg
20,000 L (20 ft)frame 6,058 × 2,438 × 2,591 mm, maximum gross 25,000 kg

One 8,000-litre tank has a smaller footprint than two 4,000-litre tanks, so it is often the more economical choice.

Typical uses

Production and completion chemicalsAcids and solventsChemical storage on platforms and floating production units, exchanged tank for tankRoad, rail and sea transport for refineries and chemical plants

Sale or rental

Available to buy or to rent from our fleet. Rental

Documents

On requestPortable offshore tanks datasheetRequest a copy →
On requestDrawings for your configurationRequest a copy →
On requestProtankgrüp brochureRequest a copy →

Request a quote

Send us the product, UN number and volume. We will reply with the tank type and size.

Request a quoteenquiry@protankgrup.com