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".