By using manual, pneumatic or hydraulic torque wrenches, it is possible to tighten flanged joints with tie rods of any diameter.
The use of the hydraulic torque wrench represents a simple and reliable solution for tightening flanged couplings; the control of the tightening torque allows, in fact, to supply the tie rods with the required load with a good approximation (± 10%).
Depending on the model chosen, the wrenches develop a torque of between 200 Nm, ideal for providing “correct” stress to the tie rod in the event that, for example, it is important not to exceed certain load values on the gasket, up to 35000 Nm, a value sufficient to supply a tension of 300 N / mm2 for 4 ”tie rods.