Bolt Tensioner

Torque Tightening

To obtain a leak-free flange connection, a proper gasket installation is needed, the bolts must be assign on the correct bolt tension, and the total bolt strength must be evenly divided over the whole flange face. With Torque Tightening (the application of preload to a fastener by the turning of the fastener's nut) the correct bolt tension can be realized. Correct tightening of a bolt means making the best use of the bolt's elastic properties. To work well, a bolt must behave just like a spring. In operation, the tightening process exerts an axial pre-load tension on the bolt. This tension load is of course equal and opposite to the compression force applied on the assembled components. It can be referred to as the "tightening load" or "tension load"

The selection of the proper flange bolt tightening technique requires experience. The successful application of any technique also requires qualification of both the tools that will be used and the crew who will do the work. The following summarizes the most commonly used flange bolt tightening techniques.
  • Manual Wrench
  • Impact Wrench
  • Hydraulic Torque Wrench
  • Hydraulic Bolt Tensioner
EGYTORC have the largest rental store in Egypt to fit all your needs For custom projects, our highly experienced engineering team is on service to design the most efficient solution for different jobs with simple operation and economical pricing in mind.

Hydraulic Bolt Tensioner Machine

Our standard hydraulic tensioners and Xtrarange bolt tensioners are used both onshore and offshore on the following applications -high pressure and subsea pipeline flanges, compact flanges, heat exchangers, cranes, pumps, valves and more.

Customized solutions

Boltight produces customized solutions to suit the unique requirements of your industry. We have developed bolt tensioning systems for applications that are difficult to access. We also produce lightweight and operator-friendly tools for large diameter bolting. Customized designs are completed within a few days and we are committed to producing the final product quickly -so you can get to work as soon as possible. Other solutions Boltight Echometerand Echometer+, provide a fast and accurate method for monitoring bolt elongation using the latest ultrasonic technology.


Echometeris our entry-level ultrasonic bolt measurement product, it is a small battery-powered handheld device that measures bolts up to 2m in length. With a digital screen and simple scroll menus, very little training is required -it is quick and easy to use. It has built-in data recording and reporting through a RS232 interface. Fully compatible with the Echometer+ including data transfer and ancillary equipment.