The steam pipeline is leaking; if a box is used and it’s not filled inside, is there a risk of explosion? Why isn’t it allowed to be done this way?
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The steam pipeline is leaking; if a box is used and it’s not filled inside, is there a risk of explosion? Why isn’t it allowed to be done this way?
The box is used to hold the injection. Without injectables, if the box design or welding quality is substandard, it will burst immediately
The box merely provides a space for containing the sealing material; it cannot directly withstand pipeline pressure； If no sealant is used, after it is put into use, the box (which is not a pressure-bearing component) bears the pipeline pressure directly, posing a risk of leakage or rupture.
It is usually called a plug; it has no filling inside and thus cannot provide sealing, but it will not burst. This is possible only because the clamping force of the clip is greater than the pressure inside the tube; otherwise, if this force is lower, there is a risk of explosion regardless of whether it is filled or not. For reference only.
A small box without any filler cannot guarantee pressure resistance; it’s equivalent to an irregular, low-pressure air pocket
This post was last edited by CHANGBAISHI on 2022-2-11 at 16:02. Glue filler was used in the grooves inside the clamping reinforcement ring. I’ve really never seen the principle behind such boxes; it would be great if you could send a video showing it. Thank you :)
Not only is glue injection necessary, but it’s also best for the box to have blunt corners to withstand greater pressure
Please refer to the standards below, which contain various boxes and methods