by Tom Gaylord
Writing as B.B. Pelletier
This report covers:
- Do pressure vessels become unsafe over time?
- Operating pressure
- Water leading to rust
- Danger through work-hardening
- Last word
Today we have a safety issue to examine. Here is the question I got last week that spawned this report.
“Wasn’t sure how to reach you so using this venue. Was wondering about safety issue on pcps with regard to repeated pressurization over the years.Most pcps are newer and certainly built with margin of safety, but is it possible as these age and perhaps are handed down that they (the pressure vessel) can become unsafe? Read somewhere repeated pressurization can lead to eventual metal fatigue (in relation to high pressure vessels of non air rifle type). Thinking of future owners down the road. Thanks for all you do for all us airgun fans, read blog everyday.”