The piping in your system covers a large footprint of the equipment that is susceptible to ‘deficiency’. Implementing a baseline for your organization that defines specific action at different severity levels of piping deterioration, and what those levels are, is a necessary inclusion for operating within the parameters of PSM and RMP requirements.
Defining Wall Thickness Acceptance Levels for Your In-Service Piping
In-Service Pipe Wall Thickness Threshold Table
Conservative operational acceptance levels for ammonia refrigeration piping systems. Includes piping sizes, schedules, and thicknesses (Carbon Steel Only).
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Pipe Wall Thickness Chart
Nominal pipe wall thickness reference chart for ammonia refrigeration system mechanical integrity.