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The time now is Oct 07, 2008 - 01:52 PM

The Sheet Metal Shop .Com Forum Index » Sheet Metal Forums » A Tinners Porch


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Saub
Post subject:offset calculation PostPosted: Aug 07, 2008 - 07:49 PM #7753



Joined: Jul 29, 2008
Posts: 3
Location: Ontario Canada
I know this is a easy question but I am having trouble in learning to calculate a duct elbow offset. The exam doesnt give the K factor just the offset amount and centre line radius measurement. Does anyone have a picture in how to calculate the lenght of duct required between 2 off set elbows.
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bordontn2
Post subject:RE: offset calculation PostPosted: Aug 11, 2008 - 02:39 AM #7754
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Joined: Nov 01, 2006
Posts: 95
Location: McEwen,Tn.
the square root of the sum of the offset squared plus the length squared ex: offset=9" 9x9=81"/length= 12" 12x12=144"
81"+144"=225" square root of 255"= 15" ( pythagoras theorem ) how to find the hypotenuse of a right angle

bordontn2

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Saub
Post subject:RE: offset calculation PostPosted: Aug 11, 2008 - 04:00 PM #7755



Joined: Jul 29, 2008
Posts: 3
Location: Ontario Canada
Thank you. Came to me after seeing your reply
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