Teflon Tape
Thursday, January 18th, 2007I wrapped up an FAT (Factory Acceptance Test) yesterday and learned something new during the inspection: the use of PTFE ‘Teflon’ tape on instrumentation joints is generally banned in oil refineries because the tape can tear off inside a pipe and accumulate at a valve, increasing the chances for equipment failure.
For those who haven’t done much plumbing, PTFE tape is an inexpensive, white, plastic tape that is commonly wound around pipe threads to enhance the sealing of a joint. It also acts as a lubricant of sorts, which can be a big help when disassembling a pipe joint at a later date. Teflon tape has become a staple of the plumbing industry and can be found at any respectable home improvement store. Heck, as a general rule of thumb, I always put Teflon tape on a metal pipe joint just because there wasn’t really harm in doing so in the household — it didn’t harm the pipe, and it ensured a more secure seal.


