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Air vent on steam exchangers: How?

by rollingstein
Tags: exchangers, steam, vent
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Aug14-13, 11:37 PM
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Often on high points of steam heated Shell&Tube heat exchangers etc. I've seen a vent specified to allow air and other non condensables to vent.

e.g. this sketch

What's this device (I mean the one labelled "Air vent") in practice? It doesn't seem like a regular steam trap. Or is it? Or just a weep hole? But that'd constantly bleed steam.

In general, how is venting of steam enclosures achieved.
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Aug25-13, 08:11 AM
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Ah! That must be what I need.


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