Calculating flowrate on a vacuum line
Calculating flowrate on a vacuum line
(OP)
Hi All,
We have a vacuum packing process where we need to draw vacuum down to 120mbar. The vacuum pump used for this is an 11kw oil lubricated rotary vane pump. The delivery line to the machine is 3" vacuum pipe.
If we were to install more machines it would be great if we were able to spec the pump based on the 120mbar required. I need to calculate what the flow rate would be for this process. What information is needed to workout the flowrate to correctly spec the required pump speed?
Thanks in advance
We have a vacuum packing process where we need to draw vacuum down to 120mbar. The vacuum pump used for this is an 11kw oil lubricated rotary vane pump. The delivery line to the machine is 3" vacuum pipe.
If we were to install more machines it would be great if we were able to spec the pump based on the 120mbar required. I need to calculate what the flow rate would be for this process. What information is needed to workout the flowrate to correctly spec the required pump speed?
Thanks in advance





RE: Calculating flowrate on a vacuum line
Take V1-V0 and divide by the time. That's the flowrate you want. Now just find a pump that will do that flowrate with a low suction pressure of 120 mb.
That is that 120 mb absolute pressure, right?
If you were plowing a field, which would you rather use? Two strong oxen or 1024 chickens?" - Seymour Cray (1925-1996), father of supercomputing
***************
http://virtualpipeline.spaces.live.com/
RE: Calculating flowrate on a vacuum line
RE: Calculating flowrate on a vacuum line
If you were plowing a field, which would you rather use? Two strong oxen or 1024 chickens?" - Seymour Cray (1925-1996), father of supercomputing
***************
http://virtualpipeline.spaces.live.com/
RE: Calculating flowrate on a vacuum line
David
RE: Calculating flowrate on a vacuum line
If you were plowing a field, which would you rather use? Two strong oxen or 1024 chickens?" - Seymour Cray (1925-1996), father of supercomputing
***************
http://virtualpipeline.spaces.live.com/
RE: Calculating flowrate on a vacuum line
RE: Calculating flowrate on a vacuum line
"Make everything as simple as possible, but not simpler." - Albert Einstein (1879-1955)
***************
http://virtualpipeline.spaces.live.com/
RE: Calculating flowrate on a vacuum line
RE: Calculating flowrate on a vacuum line
"Make everything as simple as possible, but not simpler." - Albert Einstein (1879-1955)
***************
http://virtualpipeline.spaces.live.com/
RE: Calculating flowrate on a vacuum line
RE: Calculating flowrate on a vacuum line
"Make everything as simple as possible, but not simpler." - Albert Einstein (1879-1955)
***************
http://virtualpipeline.spaces.live.com/
RE: Calculating flowrate on a vacuum line
Katmar Software
Engineering & Risk Analysis Software
http://katmarsoftware.com
RE: Calculating flowrate on a vacuum line
I'm gettting older but not sure about getting grumpier - hopefully more understanding of the inconsiderate
RE: Calculating flowrate on a vacuum line
"Make everything as simple as possible, but not simpler." - Albert Einstein (1879-1955)
***************
http://virtualpipeline.spaces.live.com/
RE: Calculating flowrate on a vacuum line
Katmar Software
Engineering & Risk Analysis Software
http://katmarsoftware.com
RE: Calculating flowrate on a vacuum line
Just back from holidays so sorry for not responding sooner. I have being occupied with other issues and havent had much time to concentrate on this one. Next week i will be starting back into this area so i may need help later!
Regards