Home > Enerpac and Projem combine bolting and flange expertise on major Queensland CSG project

Enerpac and Projem combine bolting and flange expertise on major Queensland CSG project

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article image Enerpac GT bolt tensioners set up

The new Enerpac bolt tensioning technology has been successfully used by Projem to achieve superior flange sealing accuracy and tool reliability on a major project in the coal seam gas basin west of Brisbane.

One of Australia’s premier flange management companies, Projem has a strong focus on safety and quality. The company offers a comprehensive flange management package to ensure inspection and approval at every step when completing bolted connections. Projem uses a range of Enerpac bolting tools for this purpose to meet both safety and quality objectives.

Mr Nathan Peachey, Mechanical Engineer, Projem explains that they have used Enerpac equipment to tension over 500 flange connections in the past 18 months, with all the connections showing very little wear and tear. Projem’s confidence in the quality of Enerpac tools has been validated by the fact that they haven’t had a single safety or performance issue during these 18 months.

In Projem’s recent Queensland project, Enerpac GT bolt tensioners were combined with an ATP-1500 air pump as the company worked on two new compressor stations and the main feed connection point on a pipeline to a Gladstone processing plant. They also assisted with pipe cutting and preparation of heavy wall pipes as well as on-site installation of pipework at Gladstone, which is a major gas processing hub for the State of Queensland.

Featuring capacities of up to 2,845kN (320 ton) at 1500 bar, the Enerpac tensioners are particularly suitable for applications such as pipelines and flanges where operators seek to achieve known and accurate bolt loads.

According to Enerpac territory manager, SE Queensland and Northern NSW, Sandy Whyman, a major advantage of Enerpac tensioners is that multiple bolts can be fastened at one time using exactly the same pressure from the same power source. The ability to ‘daisy chain’ hydraulic tensioners gives even pressures across a bolted surface, making them highly suitable for industries where high technology, high pressure equipment is employed.

Mr Peachey is very impressed with the level of engineering support provided by Enerpac National Bolting Manager Pat Molloy when supplying pressures for specific flange connections. He noted that results have been accurate, reducing expensive and time-consuming rework of joints.

Enerpac GT bolt tensioners

The internationally proven multi-use bolt tensioners are part of Enerpac’s global range of safe and precise non-impact professional bolting technologies designed to improve joint integrity while reducing construction times, plant downtime and maintenance expenditure.

GT-Series bolt tensioners are expanded by hydraulic force to stretch the bolts to which they are attached so as to tension with the exact degree of force needed for the application. The nuts are then locked in place to hold the tension. The GT-Series is ideally complemented by ATP-1500 air driven ultra high pressure hydraulic pumps for products requiring up to 21,750 psi of hydraulic pressure.

Enerpac’s precise, safe and time-saving fastening technology is particularly useful in applications involving critical tolerances and multiple bolting tasks on equipment used in heavy industrial, mining, quarrying, primary processing, power generation and resource exploration and development.

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