No. The main reason people use PTFE is to lubricate the threads so that the
fitting can be tightened tightly enough to provide a seal.
Additionally, the material itself, be it PTFE tape or the grease that the
PTFE is suspended in, provide an additional highly viscous barrier (sealant)
to any small leaks.
in the wrong direction! Or are they using reverse threads? I was
always taught to wind it such that the female fitting would tend to
tighten the teflon rather than push it backwards and possibly gather it
Working in a modern power plant for 30+ years we used nothing but teflon
tape in the instrument dept.
HP steam which condensed to h2o at pressures up to 3-5000 psi on our
instruments, and hydraulic pressures on the turbines that approached
10,000 psi teflon was an excellent choice.
Quality of np threads is essential for a secure connection.
Case in point a few fittings from Lowes (made in Chine) purchased for a
home plumbing job could not seal, I decided to allow the drip to seal
itself as it did.
Thread quality is what it's all about
On 10/22/2011 11:05 PM, J Burns wrote:
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