What is the safe distance for a ball valve when soldering copper pipe

Reply

  #1  
Old 11-22-08, 04:35 PM
Member
Thread Starter
Join Date: Oct 2008
Location: MA
Posts: 7
Received 0 Votes on 0 Posts
What is the safe distance for a ball valve when soldering copper pipe

When soldering, the copper pipe will become very hot. I was told the interior of a ball valve is made of kind of plastic, will the heat generated from soldering damage a ball valve nearby? Or what is the safe distance for a ball valve when soldering a copper pipe? Thanks
 
Sponsored Links
  #2  
Old 11-22-08, 04:56 PM
Gunguy45's Avatar
Super Moderator
Join Date: Dec 2007
Location: USA
Posts: 21,107
Received 0 Votes on 0 Posts
Wrap a wet rag around the pipe where it meets the valve. Not a Pro, but a couple of inches is good insurance. You can also loosen the packing nut below the handle and take the guts out to be safe.
 
  #3  
Old 11-22-08, 05:11 PM
Member
Thread Starter
Join Date: Oct 2008
Location: MA
Posts: 7
Received 0 Votes on 0 Posts
Thanks. I have about 8 inch distance. I can't leave the valve open unless I shut off the heating system and drain the water inside, which is what I am tring to avoid. So will it work by wrapping the valve with a wet rag?
 
  #4  
Old 11-22-08, 05:45 PM
Join Date: Aug 2003
Location: KY/OH
Posts: 3,523
Received 0 Votes on 0 Posts
Ball valves have a teflon packing gland. The sweat type ball valves were designed to be heated in order to be connected to copper piping systems.


It's strongly suggested that the valve be OPEN when soldering, and absolutely do NOT turn that valve off or move the handle until the valve is completely cooled down.


Otherwise, you will distort that teflon packing gland and the valve will not properly shut/seal off.
 
  #5  
Old 11-23-08, 04:40 PM
Member
Join Date: Sep 2008
Location: Long Island
Posts: 769
Received 0 Votes on 0 Posts
take a small pipe wrench/adjustable wrench and put the wrench end in a bucket of ICE with water.then tighten it on the pipe from the item your trying to ptotect from the heat.then wrap the wrench and pipe with a wet thin piece of cloth rag.....and torch away.any heat will seek the coldest spot so it will go right into the wrench/rag.
 
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 On
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


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