After connecting the electrodes should be tightened to the recommended torques to ensure proper performance of the columns. In the following chart we list the values of tightening torque which are optimal for the various diameters of electrodes:

Electrode Diameter     Recommended Jointing Torque  mm   Nm       300   700  350    950 400   1250  450   1650  500   2450  550   3450  600   3950

Locking of Electrode Connection

To prevent loosening of the electrode nipple connection, we recommend the use of the automatic locking system type "P".