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Bolt Torquing KSAControlled bolting · Joint integrity
Technical guides

Bolting & Flange Guides

Practical guides from our bolting crews on tightening flanges, choosing a method, stopping leaks and running a shutdown joint by joint.

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Flange Bolt Tightening SequenceThe cross pattern, the passes and the check pass that bring a flange up evenly.Bolt Torquing vs TensioningHow each method creates bolt load, and how to choose between them joint by joint.Why Flanges Leak After Start-UpThe usual causes of start-up and thermal-cycle leaks, and what to check first.How to Build a Flange Joint RegisterWhat a joint register holds, and how it keeps a shutdown bolting scope under control.
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Bolt Torquing

Hydraulic torque wrenches and stud tensioners applying a calculated bolt load, pass by pass, with a tagged record for each joint.

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Bolt Tensioning

Hydraulic stud tensioners loading large, high-pressure joints evenly, often several studs at once.

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Flange Management

Joint registers, bolt load calculations, tagging and records for every flange in a shutdown.

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