wreck-tekkie
New
Hi all,
I'm cleaning my own tanks and valves and I'm wondering what your opinion is about nitrile (Buna-N) O-rings used with nitrox. Everybody recommends Viton in valves and regs that are in contact with Nitrox but they are so ********** expensive and hard to get.
I think you can just use nitrile O-rings for nitrox less than 40% even if you do partial pressure blending because the time the O-ring is in contact with pure oxygen is just minutes during the filling process. For (deco) mixes above 40% I agree to use Viton although there also discussions regarding that.
What's your opinion?
Thanks and cheers
Duncan
I'm cleaning my own tanks and valves and I'm wondering what your opinion is about nitrile (Buna-N) O-rings used with nitrox. Everybody recommends Viton in valves and regs that are in contact with Nitrox but they are so ********** expensive and hard to get.
I think you can just use nitrile O-rings for nitrox less than 40% even if you do partial pressure blending because the time the O-ring is in contact with pure oxygen is just minutes during the filling process. For (deco) mixes above 40% I agree to use Viton although there also discussions regarding that.
What's your opinion?
Thanks and cheers
Duncan