What is a hydraulic stud tensioner?
A hydraulic bolt/stud tensioner delivers a very fast, safe, accurate, and direct axial load to a threaded fastener. The load is delivered without the inaccuracy of friction as seen when torquing. Another advantage of tensioning is that multiple studs can be tensioned simultaneously, delivering much greater integrity to the joint and in much less time. Contact our Bolttech Mannings bolting experts now to discuss how tensioning with the Bolttech Mannings Delta Series tensioners can save you time and money, increase safety, and improve your maintenance processes.
How it works
High-pressure fluid from our TP30K™ pumping unit pressurizes the hydraulic load cell, which creates a force that allows the tensioner to stretch the stud. When this happens, the nut lifts off the flange. The nut is returned to its seated position by turning the nut retaining disk (socket) with a tommy bar. With the nut tight against the flange, the pressure in the load cell is released and the stud remains stretched with the load mechanically locked.