By applying Hytorc Nuts is a side-load free and torsion-free clamping method is used, which excludes such problems in the future. The Hytorc Nut is also known as a mechanical tensioner. It is the only system in the world that is supplied pre-calibrated, whereby a repeatable accuracy of 5% can be guaranteed.
Application: Switch head fitted with Hytorc Nuts CN style.
HYTORC tooling: HYTORC Nut CN style.
Old method: Traditional torquing.
Problem in old situation: Due to the fine thread in combination with a high side load with traditional torquing methods, multiple studs have galled into the tube plate where they are now stuck and the tube plate is badly damaged.
Benefits: By applying Hytorc Nuts is a side-load free and torsion-free clamping method is used, which excludes such problems in the future. The Hytorc Nut is also known as a mechanical tensioner. It is the only system in the world that is supplied pre-calibrated, whereby a repeatable accuracy of 5% can be guaranteed. All of this is achieved without the disadvantages of hydraulic tensioning.
With conventional torquing the tube plate is damaged by galled nuts. This effect is mainly caused by side load. Since the Hytorc nut tensions the bolts mechanically there is no question of side load or torsional forces. There are also no rotating parts anymore on the tube plate, thereby eliminating damage.
Because the Hytorc nut has a repeatable accuracy of no less than 5%, pretension can be applied in a controlled manner far into the elastic limit.
Mechanical tensioning eliminates the disadvantages of hydraulic tensioning such as load-loss with over-tensioning and releasing of tension in the bolt.
