trouble with layout...help

Date 12-08-2007 01:36

there are plenty of books out there that have all the measurements needed to make the cuts you want. try pipefitter.com.

By rtnnhazel (*)

Date 12-09-2007 00:56

does anyone know of any websites that could demonstrate this?

By banshee35 (**)

Date 12-09-2007 02:37

http://www.weldinginspectionsvcs.com/pipetemplatesample.htm

By Plasma56 (**)

Date 12-14-2007 20:28

Angle of cut = degrees of turn divided by number of welds x 2

EXAMPLE: 90 (degrees of turn) divided by 2 (3pc=2welds) x 2 = 22.5 degrees A of C

Measure back = OD of pipe x Tangent of the angle of cut divided by 2

MB is the distance up and down from the center line of the pipe creating the A of C as it diagonals through the pipe center in an orthographic side view.

End pc length which is one of 2 shorts in the 3 pc fitting is calculated as: End pc length = Radius of turn x Tangent of the A of C
Center pc = End pc x 2

On a final note, another length can be given called the straight side length. Calculated as : End pc - MB

Hope this helps and if you require a picture of how to layout the pattern let me know.
Regards.

By rtnnhazel (*)

Date 12-16-2007 01:42

if its not too much trouble could you post a pic. im not sure i understand what your post was trying to say. thanks- robert

By tab_1999 (**)

Date 12-11-2007 22:24

Divide whatever degree it is by 2 and make that angle of cut. ( for a single miter fitting )
Rotate one of the pieces and put em back together.

I don't know of any pipefitter book that doesn't cover the complicated angles & miters

Search the web for pipe templates along with those offered in this thread.

There is no shortcut to anyplace WORTH going!

By rtnnhazel (*)

Date 12-13-2007 04:17

i believe what i am trying to do is called "miter" a pipe. a pipefitter suggested i get a franklin book? not really sure which one though. i went to my local ua but they said they could not sell me any books. i found them online but am skeptical about buying a book before i can look at it. any info wil help. thanks

By DaveBoyer (*****)

Date 12-13-2007 04:26

If You wantto make a 90 deg junction with 1 weld You cut a 45 on each end and weld them back together at 90 deg. If You want to make a 90 with 2 welds You cut 22 1/2 degrees on the ends and make a short piece in the middle with a 22 1/2 degree on each end and weld it all together. Is this what You are trying to achive? The theory behind this is that 1/2 of the desired angle goes on each end for a 1 weld and 1/4 of the angle goes on each end for a 2 weld.

By rtnnhazel (*)

Date 12-16-2007 01:35

this is exactly what i am trying to do. thanks

By tab_1999 (**)

Date 12-13-2007 14:18

Both of the little black Franklins are great books. The pipefitters and the welders.

I like the taller style as it already has the co-ordinates laid out for you if you use the correct template for the fitting you desire.

I highly recommend them.

Usually, if you get the ISBN # , librarys will sometimes order for you at cost. The last I bought were around $18.00 each.

Good Luck

By makeithot (***)

Date 12-15-2007 01:37

"Pipe fitters and Pipe Welders Hand Book" little black book worth it's weight in gold.