Belman has recently delivered 12 DN 500 expansion joint units for installation on a newly built oil platform (topside). The expansion joints are used on the exhaust line of the platform generator sets.
Due to the highly corrosive on-site environment the expansion joints were protected with TSA and further a topcoat of special high temperature resistant paint.

Special telescopic transport bars

The expansion joints where equipped with special telescopic transport bars that can be removed without the use of any power tools and without damaging the preservation of the flanges.
Due to the limited space and to facilitate the ease of installation, the bellows were designed with the telescopic transport bars. The special bars can increase or reduce the overall length of the bellows enabling the gaskets to be correctly positioned. The bars can then be easily removed by hand.

According to Norsok requirements

The expansion joints where delivered fully according to NORSOK requirements and the applicable standards. The expansion joints were delivered on time and accompanied by a manufacturing data record book.

Data on the expansion joints

Dimension: DN 500 • Installation length: 600 mm • Medium: Exhaust gas • Design temperature: -6/450°C • Design pressure: 0,05 BarG • AX: +/-120 mm • LA: +/-35 mm • Bellow: 1.4571 – AISI 316TI • Flanges: 1.4571 – AISI 316TI • Inner sleeve: 1.4571 – AISI 316TI