In every industry, the protection of people, the environment, the assets or the production is of central importance. Product segregation and equipment isolation are the concern of operations and maintenance staffs, HSE managers, site managers and shareholders each and every day.
Pressurised pipes are made safe using a valve or simple shut-off system, for instance a steel plate inserted between 2 flanges. This plate using during "blinding operation" is called, depending on the country, spectacle blinds, blanks, spades, figure 8 blinds, etc.
However, these isolation solutions, currently in use, have multiple disadvantages:
- valves: the quality of their sealing and the open/closed positions are not guaranteed - they cannot serve as a positive isolation solution
- the traditional blinding operation: this traditional postive isolation solution is time-consuming and laborious, and requires significant technical ressources without guaranteeing a correct tighteness as it is dependent on workers' skills and working conditions.
Leaks due to faulty isolation techniques can lead to pollution, operating losses, and more importantly still, the production facility’s damages or destruction and even consequences for humans (injuries, poisoning, death).