A typical application is where the electrical and pneumatic supplies to the machine are switched on and the access doors of the Hazardous area are locked close.
In a situation when machine power is ON and process is in operation.
The Key A is in the key cabinet. Key B is trapped in the power switch Interlock.
Key C is trapped in Interlock of Access Doors to the hazardous area.
To enter the Hazardous Area first Power is switched OFF as per the following sequence.
Insert Key A in the power switch lock and shift Power switch to Locked OFF position.
Remove Key B and insert Key B in the Access door lock allowing door to open.
Remove Key C allowing door to remain open.
To restart system complete operation is to be reversed
Salient Features of The Double Bolt Lock:-
Manufactured from Stainless Steel (SS 316).
Robust, reliable and simple design with minimum parts.
Easy and hassle free operation.
Maintenance free.
Ergonomic key position.
Trapped Linear key Concept.
Uniquely coded keys for safety of system.
Key codes are recorded, for easy replacement and to avoid use of duplicate keys.
Spare keys and Master keys are available on the request of customer.