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Posted by mike toohey on February 19, 2002 at 09:22:27:
In Reply to: Re: Steam -Trapping posted by Harold Kestenholz - hydronic.net on January 03, 2002 at 12:55:23:
: Steam traps work to prevent steam from getting into the return. Unfortunately, once many of them cease their function, the return is as hot as the supply, so it is difficult to tell which are working and which are not.
: While the steam is needed, it is a bit late or early to test them. One way is to shut the system down and let it get cold. After a few minutes of starting the system, it is possible to go to the traps and tell which one has a cooler return and which one does not. The ones with the cooler pipe after the trap are working.
: Sometimes you can use a stethescope to hear which ones are closing off and which are staying open, the steam passing through constantly are the ones that are not working.
: A maintenance plant would have a testing setup to see which ones close off and which do not.
: ultrasound is the way to go for steam trap maintenance i of corse am baised to the ul 101 http://crtlsys.com
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