172-65456MA-04 (JH7RM-P) 14 Jul 2015
12
3
5
6
Gasket
Do not pinch gasket
in thread recesses
4
Coat with anti-seize
Gasket Surface
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.
