Many may be familiar with “flange jumpers,” or some may call them “bonding jumpers,” that are used to ensure a continuity to ground across a flange with gaskets that act as “insulators”, such as PTFE gaskets. During a recent walkdown of a flammable liquids process, I came across this “jumper”. Design called for “jumpers” on each flange, and the contractor did exactly as instructed… Why is there a “jumper” on an N2 pipe?
NOTE: Members can read my 2012 post about these “jumpers.“