172-65454MA-03 (JH7RL-X) 20 Oct 2020
12
Instructions for Plug/Holder Disassembly and Reassembly
The seal on the threaded plugs/holders found on TLV products is formed by a flat
metal gasket. There are various installation orientations for the gaskets, such as
horizontal, diagonal and downward, and the gasket may be pinched in the thread
recesses during assembly.
Instructions for Disassembly and Reassembly
1) Remove the plug/holder using a
tool of the specified size
(distance across flats).
2) The gasket should not be
reused. Be sure to replace it
with a new gasket.
3) Clean the gasket surfaces of the
plug/holder and the product body
using a rag and/or cleaning
agents, then check to make sure
the surfaces are not scratched or
deformed.
4) Coat both the gasket surface of
the plug/holder and the threads
of the plug/holder with anti-
seize, then press the gasket
onto the center of the gasket
surface of the plug/holder,
making sure the anti-seize
affixes the gasket tightly to the
plug/holder. Check to make
sure the gasket is not caught in
the recesses of the threads.
5) Hold the plug/holder upside
down to make sure that the anti-seize makes the gasket stick to the plug/holder
even when the plug/holder is held upside down.
6) Screw the plug/holder by hand into the product body while making sure that the
gasket remains tightly affixed to the center of the gasket surface of the
plug/holder. Make sure the entire gasket is making contact with the gasket
surface of the product body. It is important at this point to make sure the gasket
is not pinched in the thread recesses of the plug/holder.
7) Tighten the plug/holder to the proper torque.
8) Next, begin the supply of steam and check to make sure there is no leakage
from the part just tightened. If there is leakage, immediately close the inlet valve
and, if there is a bypass valve, take the necessary steps to release any residual
pressure. After the surface of the product cools to room temperature, repeat the
procedure beginning from step 1.
