Type A Instrallation
The Coupler Type A system utilizes internally threaded couplers with a single right hand thread and is suitable for applications where the continuation bar can be rotated. The ends of the bars are upset and threaded for half the length of the coupler.
Type B Instrallation
The Coupler Type B uses the same coupler as the Type A system, but one bar is threaded for a full coupler length. It is used for applications where it is difficult but not impossible to rotate the continuation bar.
Type C Instrallation
The Coupler Type C system has an additional locknut and is used where the continuation bar cannot be rotated. The continuation bar is threaded for the full coupler length plus the length of the locknut.
Type D Instrallation
The Coupler Type D coupler system has an suitable for application where the continuation bar cannot be rotated.
