an inexpensive, foolproof system for sizing ring & pin combination
tube plugs. The two piece tube plug has long been the tool of choice
for isolating ruptured tubes due to its extended sealing area and
its resistance to "overdriving". The only downside to
using this plug, over the standard tapered plug, was that the ring
portion had to be accurately sized to the tube I.D.. This sizing
operation requires the tube I.D. to be measured to the thousandths
of an inch with a precision measuring instrument.
for Industry, Inc. has developed a foolproof and easy to use solution
for this problem... the TFI TPS line of gages. These gages cover
the popular ring sizes for 5/8" to 1" O.D. tubes with
wall thicknesses of 16 through 22 BWG. All gages have machined
diameters that cover the popular ring sizes. Diameters are stamped
with a number to identify its relative ring size.
use simply insert the gage until it will advance no further. Withdraw
the gage and note the number on the last diameter to enter the tube.
Order the two piece plug with the ring marked with the same number.