How is it possible that office chair cylinders don’t leak?

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How is it possible that gas cylinders (think of office chairs) with moving parts do not leak out over time?

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3 Answers

Anonymous 0 Comments

Mine at work leaks. And if you’re leaning a certain way it leaks quickly. I’m guessing the internal has a V shaped seal that should seal better as the pressure increases (when you sit in the chair). They do wear over time and in my case they can leak if the load isn’t centered.

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