Easier pipeline flange assembly and maintenance reduces plant downtime

Easier pipeline flange assembly and maintenance reduces plant downtime
Published: 28 May 2019 - 4 a.m.
By: Martin Menachery
Enerpac announced the Equalizer portfolio of tools for easier pipeline flange assembly and maintenance on petrochemical processing facilities. The tools provide a safe, cost-effective and simple solution for flange alignment, flange spreading and flange pulling applications. The Equalizer product range includes flange spreading, aligning and pulling tools together with a series of hand-pumps. All tools are supplied as ready to-use sets.

The flange alignment tools can be used to resolve bolt-hole rotational, or lateral misalignment that can occur within flange joints inside wind turbine tower sections during their assembly, or installation. For use on applications with minimum bolt-hole diameters of 25mm-45mm, the tools provide a reaction force of up to 27 tonnes (270kN). Compared with traditional, manual approaches, the Equalizer tools offer a much safer quicker and effective means of realigning flanges.

For use on horizontal, or vertical flanges, the Equalizer range are suitable for ANSI/ASME, API, BS, DIN and SPO flanges. The tools operate on most pipe configurations with minimum bolt-hole diameters of 16mm– 35.5mm with reaction forces up to 90kN.

The Equalizer range of tools also includes flange spreading and pulling tools together with a series of hand pumps. The wedge shaped, flange spreading tools use mechanical and hydraulic actuation for separating flanges and can spread small, medium, or large flange joints with a minimum required access gap of 4mm, with a spreading force of 480kN when used in pairs.

The Equalizer flange pulling tools have been developed to pull flanges together during installation, or maintenance for use on all vertical and horizontal flanges, including ANSI/ASME, API, BS, DIN and SPO with a minimum bolt-hole diameter of 22mm. With a closing force of up to 200kN when used in pairs, the tools can pull flanges from a distance of 600mm down to 0.0mm.

The Equalizer range of hydraulic hand-pumps has been designed with a sealed oil reservoir, which allows the pumps to be used in any orientation without the risk of oil spills, or air contamination. The pumps can be used to operate any Equalizer 690 bar rated hydraulic equipment in most environments, including onshore, offshore, or subsea. Each pump is available in 350cc, 550cc and 1,000cc capacity versions.

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