A FRONT LINE SAFETY DEVICE for protecting both personnel and equipment.
Applied to two or more moveable parts, PREVENTING (OR ALLOWING) MOVEMENT.
Drives a PREDETERMINED SEQUENCE as specified by the customer to protect from hazardous energy.
Keys are transferred from one lock to the other using UNIQUELY CODED INTERLOCK KEYS.
TO PROTECT personnel from hazards by ensuring predetermined sequences of operations are followed
TO PREVENT financial setbacks due to expensive machinery and electrical equipment damaged by operator error
TO PROVIDE continuous service and manufacturing without interruptions due to mis-followed operation sequence

Fact:
In excess of 70% of reported accidents world-wide in the industrial marketplace are attributable to human error, accounting for 90% of the financial loss.

Fact:
Written operating procedures alone cannot prevent the inadvertent operation of equipment out of sequence.

Installing a trapped key interlock system ensures a predetermined sequence of events is followed. Whereas Lock Out – Tag Out (LOTO) provides a visual warning and some protection, a trapped key interlock system physically prevents a specific set of actions until the previous action(s) have been completed.

What Is A Trapped Key Interlock?
A trapped key interlock is a safety device applied to two or more moveable parts, preventing (or allowing) a movement or operation of one part only when another part is locked in a predetermined position. KIRK trapped key interlocks operate on the principle that the key can be removed only when the locking bolt is in a predetermined position. See diagram below.

The KIRK interlock is used to protect personnel and equipment, with the goal of eliminating errors that can occur when it is necessary to obey a sequence of predefined operations. The KIRK system prevents anyone from trying to circumvent the default and crucial to the safety of the procedure sequence. The KIRK interlocks can be mounted directly on the equipment, ie, the system is fully integrated and simple to operate.

KIRK - Model Type CN22 - Threaded Cylinder Interlock

Contact supplier

Stay in the loop!