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Using Toroidal Ring to prevent static ignition of hydrogen

Using Toroidal Ring to prevent static ignition of hydrogen

Using Toroidal Ring to prevent static ignition of hydrogen

(OP)
I have been told that toroidal rings are installed at the atmospheric discharge point on hydrogen relief lines to prevent static ignition.  I have had no success searching the web for information on these devices or finding companies that sell these devices.  Would someone please enlighten me?

RE: Using Toroidal Ring to prevent static ignition of hydrogen

NASA usually electrically  isolates the top section of their H2 vent stacks. This enables them to have a spark gap outside the H2 stream.

Here is where they mention the torodial ring and its pupose.
I would imagine thatthere is a lot more information if you look around NASA.

http://www.nasa.gov/offices/oce/llis/0242.html

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