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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
Remove the plug/holder using a tool of the specified
①
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.
Coat both the gasket surface of the plug/holder and
④
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.
Screw the plug/holder by hand into the product body
⑥
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.
Tighten the plug/holder to the proper torque.
⑦
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
③
④
Coat with anti-seize
⑤
⑥
― 12 ―
Gasket Surface
Gasket
Do not pinch gasket
in thread recesses
①
.
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