Safety lock 'SI'

Many couplings can be supplied with an additional axial positive safety device. Disconnection can only be effected when both locking components – locking sleeve and locking ring – are pulled back against spring force and turned against each other by 90 °C. Both end positions - backed up by spring-loaded CAM and unlocked - are fixed.

The operator can check the correct locking position by trying to pull back the locking sleeve. This is not possible in the secured position.

Note:

This safety device can be ordered with our couplings by specifying 'SI'.