Steam Pipe Orifice Location
Steam Pipe Orifice Location
(OP)
Hello Everyone,
I am looking to locate a steam orifice in a pipe for heating a rainwater sump. I believe that there is too much steam going to this sump and the water does not need to be heated as much as it is now. We can throttle a gate valve back to get less steam through the piping, but I rather put an orifice in.
Do I need to have a steam trap near the orifice due to condensate generation. AKA if pressure drop is too great at the orifice condensate will be generated and need to be taken out of the steam piping.
Thanks.
I am looking to locate a steam orifice in a pipe for heating a rainwater sump. I believe that there is too much steam going to this sump and the water does not need to be heated as much as it is now. We can throttle a gate valve back to get less steam through the piping, but I rather put an orifice in.
Do I need to have a steam trap near the orifice due to condensate generation. AKA if pressure drop is too great at the orifice condensate will be generated and need to be taken out of the steam piping.
Thanks.





RE: Steam Pipe Orifice Location
However, to answer your question, there will be condensate build-up on the lower portion of the pipe because it cannot flow through the orifice, which is most likely in the middle of the pipe, and a steam trap would be a good idea.
Joe Lambert
http://www.control-associates.com/
RE: Steam Pipe Orifice Location
Go to this web site.
http://www.imperialco.net/orifice/orifice.html
There you will see (on page 9) an example on an "Eccentric" Orifice plate and a "Segmental" Orifice Plate.
Both of these can be used for Steam.
You can also get a standard "Concentric" Orifice plate with a drain and/or vent hole.
Page 11 is a sample Orifice Plate Data sheet and if you read it you will see the place where you designate the drain hole.
I hope this helps.
RE: Steam Pipe Orifice Location
RE: Steam Pipe Orifice Location