SFC’s ‘Visual Alert’ Key Cabinets provide an effective and infallible management control system against unauthorized or inadvertent operation of interlocked valves or associated process equipment by keeping the coded keys, which initiate the operation of critical valves, under secure supervisory control. For storage, ease of access and issue, SFC’s key cabinets, provide all that is required. Typically, a key cabinet will be found in a secure place; e.g. a control room whereby initiating keys are issued by the Shift Supervisor, Offshore Installation Manager or another person in authority. Cabinets vary in size and can accommodate from 1 – 280 system initiating (or spare) keys. Keys can be stored on hooks or holsters (The holster design provides increased capacity).