Go Back  DoItYourself.com Community Forums > Plumbing, Piping, Water Heating, Wells, Air & Water Filtration and Conditioning > Plumbing and Piping
Reload this Page >

joining 1" copper to 1" cpvc. Is there a way without sweating a copper fitting?

joining 1" copper to 1" cpvc. Is there a way without sweating a copper fitting?


  #1  
Old 11-22-04, 11:02 AM
GaryS
Visiting Guest
Posts: n/a
joining 1" copper to 1" cpvc. Is there a way without sweating a copper fitting?

I will be joining 1" nominal copper to 1" cpvc and I am wondering what my options are. Of these listed below, what is best? (i would prefer to avoid sweating anything actually... but if i must....)

1) sweat a union onto the copper. then glue the cpvc into the union
2) sweat a male fitting onto the copper then join to a cpvc femaleadapter
3) sweat a female fitting onto the copper then join to a cpvc male adapter
4) a union that would compress onto copper side but glue on the cpvc side?

any other suggestions?
 
  #2  
Old 11-22-04, 11:07 AM
majakdragon's Avatar
Member
Join Date: Jul 2003
Location: N.E. Arkansas
Posts: 7,475
Upvotes: 0
Received 1 Upvote on 1 Post
Go with number 3. Hoping this is not in a wall though. Most states do not allow threaded joints to be in walls. Female CPVC adapters are not really recommended either. Good luck.
 
  #3  
Old 11-22-04, 11:59 AM
GaryS
Visiting Guest
Posts: n/a
What are the odds that I could use a compression fitting for both the copper and cpvc? The joint will be in the open and not through a wall. I read that compression fittings on cpvc have a lengthy and successful field history.
 
  #4  
Old 11-22-04, 01:42 PM
majakdragon's Avatar
Member
Join Date: Jul 2003
Location: N.E. Arkansas
Posts: 7,475
Upvotes: 0
Received 1 Upvote on 1 Post
If you can find a compression fitting to match both I suppose you could use it. CPVC is not the same size OD as the copper.
 
  #5  
Old 11-22-04, 01:55 PM
Ed Imeduc's Avatar
Member
Join Date: Aug 2002
Location: Mountain Williams Missouri
Posts: 17,505
Upvotes: 0
Received 1 Upvote on 1 Post
Wink

With dragon #3 sounds good But if you dont want to solder . A 1" compression to Mpt 1 " coupling there and a mpt on the CPVC. I would not try a compression fitting on the CPVC.

ED
 
  #6  
Old 11-22-04, 02:02 PM
GaryS
Visiting Guest
Posts: n/a
With dragon #3 sounds good But if you dont want to solder . A 1" compression to Mpt 1 " coupling there and a mpt on the CPVC. I would not try a compression fitting on the CPVC.
Ok... I get the compression fitting onto copper but what would be the transition to cpvc? I didn't understand the mpt 1" coupling there and a mpt on the cpvc...

Just in case... I will have 1" cpvc pipe literally connecting to copper so I don't need any more fittings on the cpvc side...
 
 

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