It’s a mechanical problem first. If the seals don’t work, what’s inside doesn’t matter anymore.Right off the bat: Parker Seal Company literally wrote the book on o-ring seals. There is no better
It’s a mechanical problem first. If the seals don’t work, what’s inside doesn’t matter anymore.
Right off the bat: Parker Seal Company literally wrote the book on o-ring seals. There is no better design reference for o-ring seal design than the Parker O-ring Handbook (ORD-5700). A pdf is available for free at <www.parker.com>. It is mandatory reading for ocean engineers, and contains much more detail than possible in this article. Zoom in on the sections relevant to your work, then come back later and explore other seal designs, such as dovetail grooves, SAE Boss seals, crush seals, rotary seals, and others that might be helpful another day on another project. In my early years at Scripps, I found the Handbook a little confusing in parts. Older, experienced engineers and machinists helped me through it. In the long time since, from inside the Arctic Circle to the bottom of ocean trenches, Parker design guidelines never once let me down. Pretty epic win-loss ratio. In the early 1980’s, after a perplexing housing leak at sea, I reversed engineered and found underwater connectors from two companies that would predictably fail prematurely, at 1/3 of their catalog value, due to poor o-ring seal design. Presented
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