SheetMetalTalk test

Go Back   Sheetmetal Talk > Sheet Metal Forums > Duct Construction and Uses

Duct Construction and Uses
Discussion in fabricating and use of products that move air including spiral pipe, duct board and typical sheet metal work.

Share This Forum!  


Thread Tools Display Modes
Old 10-20-2015, 04:03 PM
Maller83 Maller83 is offline
Junior Member
Join Date: Jul 2013
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Cool Duct bend Insulation template

Basically I'm lagging the duct bend in 30mm thick phenolic board
So bend is 450 c/radius = 450

450 + 30mm insulation thickness is 510mm
So it's
510 od x 3.142 = 1602mm template length

Need to determine template heel and throat heights as I'm using flat board and want to sit nicely on the bend seams

Hope someone under stands haha

Sorry for long winded message

Last edited by Maller83; 10-20-2015 at 04:05 PM. Reason: Wrong
Reply With Quote
Old 10-21-2015, 04:13 PM
Bud's Avatar
Bud Bud is offline
Join Date: May 2003
Location: Waukesha
Posts: 2,098
Thanks: 414
Thanked 126 Times in 89 Posts

Welcome to the forums. I have a PDF copy of Laying Out For Boiler Makers and Sheet Metal Workers 1921. Let me see what happened to the link and it should be a world of help...

If you have a couple of days I may be able to help you out.
Reply With Quote

duct sealer, hvac, insulation

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -6. The time now is 10:32 AM.

Powered by vBulletin®
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.