Safety in the Plant
The company’s ‘advanced interlock technician training’ course is particularly beneficial to offshore facilities. Here small and relatively simple adjustments and repairs can be quickly carried out by local staff, eliminating the need for an external specialist who has to be flown in specifically for this purpose.
Prevent drive-away incidents Another important function of interlocks is to prevent drive-away incidents. Castell’s Salvo loading dock safety system drive-away prevention products promote safety on automatic and manual loading dock doors. The Salvo system prevents injury and
damage to loading platforms by making it impossible for trucks to drive away during loading or unloading. Salvo’s Glad Hand Lock attaches to the truck’s emergency brake line, ensuring brakes are applied. Once the Gland Hand Lock is
applied, the uniquely coded key is released. This key is used to open the dock door to begin loading or unloading the trailer. Only after work is completed and the door closed is the key needed to unlock the Glad Hand Brake Lock released, making it impossible for the driver to depart prematurely. Also working in the same area is
SERV Trayvou Interverrouillage (STI). The company has improved its RGV range of hose coupling safety products, which are fitted to silo inlet pipes, to ensure tanker drivers deliver their load to the correct silo.
Now lighter, more resilient and easy to use, the latest version of the RGV enables the safe transfer of goods via trapped-key interlocking technology. The RGV range requires operators to receive authorisation from the control room before the process can begin. Depending on the type of product being used, this authorisation is given either by the hose coupling being unlocked remotely or through the use of an interlocking safety key. An inductive proximity sensor indicates that a tanker driver is transferring their load. To connect this product to the silo,
the operator must obtain the dedicated coded key from the loading manager. Each silo has a corresponding key to avoid load transfer errors. This solution can be used in conjunction with STI’s RFID key management panel, Smart Key Manager, to ensure optimum safety and traceability. STI also has a new electromechanical
RGV. To connect this product to the silo, the operator has to liaise with the loading manager and wait for authorisation from the control room before coupling the hose and starting to unload. Access to the coupling is granted directly from the control room (Fig. 1). Electrical contacts can be added to either version of the RGV to enable monitoring from the control room. Supervisors can see which RGVs have been made available to tanker drivers and those that have hose couplings attached. n
Key management system extended S
martKey+ is the latest extension of Smith Flow Control’s key management systems. Key cabinets provide a safe and visual way of storing interlock system ‘initiating’ keys. SmartKey+ has been developed to provide all the features of SFC’s visual alert key cabinet, along with the ability to record movements of keys in real-time, providing complete accuracy. The new cabinet uses radio-frequency identification (RFID) technology which allows a key to be tracked with complete confidence, providing operator and control room personnel with information on interlocked processes and their status. Full transaction history is available, revealing details of key insertion/ removal. The unit is designed to support a remote web interface. SmartKey+ has enhanced levels of system security. All keys are trapped in the cabinet until authorisation is granted; a user
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is identified by a pin code. SmartKey+ highlights specific key positions that the operator is authorised to use. The user selects the appropriate key from the panel and removes the key as the selected key position is unlocked. To reinsert a key in the SmartKey+ Cabinet, the user scans the key in front of the integrated scanner and the appropriate key position is highlighted on the frontal display for re-insertion. The SmartKey+ Cabinet is configured around a central control panel capable of running a system with over 500 keys. SmartKey+ is comprised of modular sections, each containing 18 key positions, and can be increased incrementally.
SFC says its SmartKey+ provides a unique solution to key management, combining innovative software and smart technologies. n
GL Interlocks simple in-situ adjustment feature provides a fast and efficient method of maintaining valve interlocks on site.
Fast, safe access is an important issue in loading docks. The Salvo system prevents injury and damage to loading platforms by making it impossible for trucks to drive away during loading or unloading.
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