Replacing theSiliconeTubePermeationMembrane in theDGA/TOGA
PermeationLoopAccessory
Tighten the second nut and ferrule
on theopposite sideof theglass
tubing. Youwill have to stretch the
silicone making sure the silicone is
clamped under the second ferrule.
We stretch the tubing because
transformer oil causes the silicone
tubing to swell in length so toavoid
having the tubing kink inside the
glass is best to stretch it during the
installation.
TogaTubeReplacement.pub
Re-assemble the glass tubing into
the heater block and securewith
the twohex head screws. Don’t
over tighten the screws . Note that
you can see the silicone tubing in-
side the glass tube evenwhen the
heater isassembled. Periodically
check the silicone tomake sure it is
not kinked, leakingor collapsed.
Attach several overlappingpieces
of silicone/tygon tubing to connect
the 1/16” teflon tubing exiting the
permeation loop to the inlet of the
peristalticpump.
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