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Hi
I HAVE COME ACROSS A SITUATION WHEREBY I HAVE A NEGATIVE BACKPRESSURE(VACUUM) IN THE DISCHARTGE LINE OF A PSV.
Is this going to affect the performance /opening of the PSV........any other issues i need to take care?
Regards
Vinod
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Vacuum In The Tail Pipe
Started by vinod, Jan 03 2008 03:08 AM
2 replies to this topic
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#2
JoeWong
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Posted 03 January 2008 - 04:23 AM
QUOTE (vinod @ Jan 3 2008, 03:08 AM) <{POST_SNAPBACK}>
Hi
I HAVE COME ACROSS A SITUATION WHEREBY I HAVE A NEGATIVE BACKPRESSURE(VACUUM) IN THE DISCHARTGE LINE OF A PSV.
Is this going to affect the performance /opening of the PSV........any other issues i need to take care?
Regards
Vinod
I HAVE COME ACROSS A SITUATION WHEREBY I HAVE A NEGATIVE BACKPRESSURE(VACUUM) IN THE DISCHARTGE LINE OF A PSV.
Is this going to affect the performance /opening of the PSV........any other issues i need to take care?
Regards
Vinod
Normally no as your downstream pressure is under critical flow for gas.
#3
pleckner
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Posted 03 January 2008 - 06:37 AM
It all depends on the type of PSV; balanced bellows (no), conventional (posssibly; effective set pressure may be lower than expected).
Other issues: None really. Joe addressed flow.
Other issues: None really. Joe addressed flow.
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