Before any hot work begins, all openings of the HAZTEC enclosure are sealed, filtered, or closed to create a positive pressure over balance in the interior of the enclosure, protecting the inside atmosphere from exposure to the potential dangers of the outside atmosphere. A minimum positive pressure differentia of .15 inches water column is maintained and monitored inside the enclosure throughout the hot work procedure. A filtered-air discharge outlet allows smoke to vent while maintaining no less than the minimum requirement of the positive pressure over balance.
Benefits of HAZTEC:
Retained Production
HAZTEC lets a company retain the production revenue that would otherwise be lost due to shut-ins.
Optimized Scheduling
Scheduling and execution obstacles are eliminated with the HAZTEC process. Companies no longer have to schedule projects around shut-ins or turnarounds. Weather, darkness, and conflicting tasks are also removed from the equation.
Safety and Shared Tasks
Production remains "business as usual" and concentrate on daily tasks while risk management is covered by the HAZTEC process. Operators no longer need to be concerned about the problems associated with shut-ins such as stored energy during isolation, isolation planning and the increase in personnel associated with attempting to accomplish high-risk tasks in a narrow time frame.