Piping around corner less than 45 degrees.

Reply

  #1  
Old 01-24-20, 05:12 PM
Member
Thread Starter
Join Date: Oct 2013
Posts: 41
Received 0 Votes on 0 Posts
Piping around corner less than 45 degrees.

Suffered a broken heating pipe at corner that is less than 45 degrees. The installer didn't use a fitting to make the turn. It looks like a piece of regular type m pipe that was molded and bent slightly to fit into expanded opening on regular 3/4" pipe. I've seen that done on car exhaust pipes but not copper pipes.
 
Sponsored Links
  #2  
Old 01-24-20, 05:59 PM
Grady's Avatar
Forum Topic Moderator
Join Date: Jan 2005
Location: Delaware, The First State
Posts: 14,083
Received 13 Votes on 11 Posts
I've done it more than once, usually by using 3/4" ID soft copper (tubing).
 
  #3  
Old 01-24-20, 07:23 PM
GregH's Avatar
Super Moderator
Join Date: Jan 2001
Location: Manitoba
Posts: 10,065
Received 19 Votes on 19 Posts
A little trick is that you are able to turn hard drawn tubing into soft drawn for a bend.
You heat the section of tubing you want to soften to a dull cherry red and then cool, slow or fast doesn't matter.
You have to make sure you flush the oxidation from inside the tubing.
 
  #4  
Old 01-24-20, 08:52 PM
Grady's Avatar
Forum Topic Moderator
Join Date: Jan 2005
Location: Delaware, The First State
Posts: 14,083
Received 13 Votes on 11 Posts
Bend slow & easy lest you kink the tubing. Right, GregH?
 
  #5  
Old 01-24-20, 09:38 PM
lawrosa's Avatar
Super Moderator
Join Date: Dec 2010
Location: Galivants Ferry SC USA
Posts: 18,012
Received 39 Votes on 34 Posts
Ahhh the old BT ( bending temper) tubing of the day. we stopped using that in the late 80's. Back in the day we did it to save on elbows. Box of ells were expensive. The pipe was cheap...20 ft lengths. I belive it was L copper. Heck I think I still have my swedging tool...lol.. No couplings....


 
  #6  
Old 01-25-20, 08:25 PM
GregH's Avatar
Super Moderator
Join Date: Jan 2001
Location: Manitoba
Posts: 10,065
Received 19 Votes on 19 Posts
You could put a slight kink in softened hard drawn tubing but you really should use a tube bender..
I do this for refrigeration and A/C installations when you want to impress someone with your arrow straight runs but need to minimize joints and want better flow around corners than you would get with elbows.
Even if you can cover the suction line with foam insulation it is difficult to make soft drawn tubing look good.
 
Reply

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: