Type-approved offshore tanks in yellow frames at the Protankgrüp yard

Type-approved offshore tanks

Containerisation of dangerous cargoes

Can your cargo be transported by ship safely? A tank that goes to sea must meet the International Maritime Dangerous Goods (IMDG) Code and be marked as such before it is loaded. We design, build and test tanks that do.

The range

Tote-Tank

Stainless steel intermediate bulk containers to UN 31A.

Offshore chemical tank containers

1,000, 2,000 and 3,000 litre tote tanks in certified offshore lifting frames.

Portable offshore tanks

IMDG T11 tanks of 2,900, 4,000, 4,800 and 8,000 litres. T14 tanks for acids, up to 8,000 litres.

Jet fuel tanks

Transportable tanks for aviation fuel, 2,900 to 4,800 litres.

Lined acid tanks

Stainless steel tanks with a seamless spray-applied lining for concentrated acids and other highly corrosive chemicals.

Lifting frames and racks

Certified offshore lifting frames for tote tanks, and gas cylinder racks.

How we design an IMDG tank

  1. Review the cargo’s safety data sheet to set the selection criteria.
  2. Mechanical design and calculation.
  3. A pressure vessel that meets international standards.
  4. Design review with the IMDG competent authority and a third-party classification society.
  5. Check that every component meets the IMDG Code and offshore requirements.

Testing in our own facility

Hydrostatic testLeak testDye penetrantMagnetic particleUltrasonicRadiographyPositive material identificationPaint testHoliday test for linings

Standards and approvals

DNV 2.7-1EN 12079 and ISO 10855IMO MSC/Circ. 860IMDG CodeADRRIDUN 31AASME U stamp available for the pressure vessel

Buy or rent

Most of this range is also available from our rental fleet. See rental