Regarding the internal leakage issue of steam hand valves
Thread Content
Everyone has encountered the issue of internal leakage in steam hand valves, right? So what are some good ways to deal with internal leakage in such valves? 1. If it’s possible to cut it out and replace it, that’s the simplest solution. If it can’t be cut out, are there any good ways to deal with it? 2. In particular, internal leakage in the root valve is the most troublesome issue; how can this problem be resolved? Discussion is welcome
One method is to add another valve behind the internal leakage valve; this approach is effective, but it has its limitations – it depends on whether the site conditions permit it and whether the amount of internal leakage can be controlled.
Is it a high-temperature and high-pressure stop valve? The valve seat sealing surface can be removed for processing
If the sealing surface is removed, won’t the steam come out?
If internal leakage needs to be addressed, the gas supply must be stopped
I recommend you watch a short video; it’s very useful! https://bbs.hcbbs.com/lesson-59.html
So, the root valve for steam needs to be installed, and it must be installed properly.
If it’s a welded valve, that would be problematic.
Since it’s in a closed state on a daily basis, it seems to not be used regularly. Wouldn’t it be fine to install a blind flange after the root valve?
The welded small valves are convenient to install, but maintenance over a long period of operation is indeed troublesome.