Technician checking offshore tanks at the Protankgrüp yard

Tank testing, recertification and refurbishment

Keep tanks and containers legal to ship and safe to lift

A tank whose test date has passed cannot be shipped, and an offshore container with an expired inspection will be refused at the quayside. We test, repair and recertify tote tanks, portable tanks and offshore containers, our own and other makes, and return them with the documents you need.

Home / Services / Tank testing, recertification and refurbishment

Our services

Tote tanks (UN 31A)

Periodic leak test with air · Wall thickness test · Internal and external inspection · Relief valve test · Re-marking of the data plate with the new test date

Portable tanks (T4, T11, T14)

Periodic and intermediate inspection · Hydrostatic pressure test · Leak test · Relief valve test and reset · Survey witnessed by a classification society or third-party inspector

Offshore containers and lifting frames

Periodic inspection to DNV 2.7-1 · Load test · Non-destructive testing of pad eyes and primary welds · Inspection and recertification of sling sets and shackles

Testing capability

Hydrostatic test · Leak test · Dye penetrant test · Magnetic particle test · Ultrasonic test · Radiography · Positive material identification · Paint thickness test · Holiday (spark) test for linings

Cleaning

Tank cleaning between products or before inspection, with a cleaning certificate.

Repair and refurbishment

Weld repair to shell and frame · Replacement of valves, gaskets and fittings · Blasting and repainting of frames · Internal lining and relining · New decals and markings

What you receive

Test and inspection reportsThird-party certificate where the code requires oneUpdated data plate and markingsPhotographic record of the work

Where

At our yard in Malaysia. On-site work at your base can be arranged for larger fleets.