In Plumbing, Why Are Threaded Sweat Connectors Used Over Direct Device Sweat Connections?

i know a multitude of devices are available in sweat and threaded connections, so why are threaded more commonly used instead of sweat? it seems like it would be easier.

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This entry was posted on Saturday, February 20th, 2010 at 6:01 am and is filed under Device. You can follow any responses to this entry through the RSS 2.0 feed. Responses are currently closed, but you can trackback from your own site.

2 Responses to “In Plumbing, Why Are Threaded Sweat Connectors Used Over Direct Device Sweat Connections?”

  1. Three possible answers come to mind.
    1. You want to start a sweated joint where a threaded connection point is currently located. So one end of the fitting will be threaded and the other will be sweated.
    2. This is the more likely answer. The fixture you are installing will eventually need to be replaced. So rather than having to cut a pipe to replace it, the fixture comes with a threaded attachment point.
    3. The fixture you are installing is heat sensitive (like certain types of check valves), so sweating the pipe into place is not an option.
    I know what some of you are thinking right now. How are you going to sweat the other end of the fitting in that case, the one on the opposite side of the threads? Think about it a little bit. It will come to you. If not, just email me and I will tell you.

  2. Why not?