By definition a pressure vessel is a container designed to hold gases or liquids at a pressure different from the ambient pressure. For discharge dampeners that difference is substantial.
The gas or liquid pressurized in the vessel represents a tremendous amount of stored energy. If a vessel failure occurs that energy is released. If the failure is small the energy may be released slowly leaking gas or liquid into the environment. If the vessel failure is catastrophic the potential damage can be significant.
OSHA reporting shows a snapshot of the impact of these incidents. But upon further review, it must be noted that for every incident reported there may be multiple injuries or fatalities within that one incident cited.
*Statistics derived from OSHA incidents between 12/31/01 and 12/31/07.
In addition to the potential injuries and loss of life, there is the economic cost of downtime. Even if no one is injured how much would it cost to stop production for even an hour?
The main purpose of implementing a pulsation dampener inspection program is to ensure that each vessel is safely operated and maintained. Our objective is to provide some general guidelines by which you can conduct an inspection of your pulsation equipment with the goal of:
- Improving facility, personnel, and public safety
- Increased reliability and operational productivity
- Reduction of operational and maintenance related or down-time costs
- Minimization of liability
Because of a variety of factors, your pulsation equipment may no longer have their original design strength, and because of changes in operating conditions, they may see more severe service than was originally anticipated. With all of this in mind, it is important that pulsation equipment be inspected regularly.
Inspecting your vessels on a regular basis will keep you aware of its condition and potential issues that can and will create costly problems if not addressed.
This information is simply a guideline. Your state will have specific requirements that should be followed based on ANSI and National Board Requirements.
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