Re: Compressed Air Piping Header

From: <Choy>
Date: Sat May 07 2005 - 02:33:00 EDT

Dear George

Thanks for your input and it will really help me.

Thanks

BK

• George McKinney <gmckinney@augustaeng.com> wrote:
  > Two answers:
  > First, for good distribution, I recommend that the
  > header area be about four times the branch area.
  > But, second, calculate velocities of the air/gas in
  > your header and in the branches, to be sure you have
  > acceptable speeds. Generally, I try to hold less
  > than 50 ft/second in the branches and less than that
  > in the header (in case you have multiple take offs
  > which could add up and result in high header
  > velocities).
  >
  > George McKinney
  > ----- Original Message -----
  > From: bkchoy2082
  > To: <a href="/group/PipingDesign/post?postID=5niab19mqheDlJIyg-c6gV26LpNhSRXkNCM8T0q2zhfEh18UyQuAq5VNQUmgp4pS0k7zoVxoz9QW0gXmsdP9pXCtYn8lwA">PipingDesign@yahoogroups.com</a>
  > Sent: Friday, May 06, 2005 2:46 AM
  > Subject: [PipingDesign] Compressed Air Piping
  > Header
  >
  >
  > Hi,
  >
  > I am having a problem? I need to know how to
  > calculate the size of a
  > header to use. I have 3 dryers and the total
  > compressed air supplied
  > is 2000cfm. The pipe size to the dryers is 2.5"
  > Any idea ho to
  > calculate the actual size of the header to use?
  >
  > Thanks
  >
  > BK Choy
  >
  >
  >
  >
  >
  >
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