From ENERPAC
In several branches of industry high demands are made with regard to (heavy) bolted joints. To achieve this a precision tool is required which provides the certainty of a good joint, but especially the correct bolt prestress. The appropriate tool for this purpose is a hydraulically driven torque wrench. In this article you will find further information about the principles behind hydraulic torque wrenches, the various application possibilities, and particularly the things you should pay special attention to when using these tools.
In spite of all kinds of new joining techniques, nuts and bolts still play an extremely important role in construction and mechanical engineering. Just think of offshore engineering, the chemical industry, or the construction of machines and pipelines. An important advantage of the bolted joint is the possibility to undo the joint for maintenance and repairs and to separate joined machine or construction parts.
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Topics of Interest
There are a wide variety of Preset and Adjustable torque wrenches and selecting the shape and size for your application can be easy. However, understanding the variety of torque delivery mechanisms of...
Tension, not torque, indicates proper joint tightness. An M-Alpha auditing system from RS Technologies Ltd. checks lug clamp loads on an automobile rim. A line drawn through two points on the elastic...
Washers that add tension rather than friction keep bolted joints tight. Nord-Lock washers keep bolted joints tight in hydraulic hammers from Atlas-Copley. Nord-Lock washers are available in yellow...
Just about all industries and equipment use bolted joints. But some applications are less forgiving of possible bolt failure than others. Examples of critical bolted joints are found in the Space...
Leaking Pipe Flanges and Hot Bolting This chapter is oriented to in-plant piping maintenance and repairs. The methodology can be applied to pipelines, especially the sections on sleeve design.
