Brass Inside, or Brass Outside? Do You Prefer Male or Female?

gotgas · September 2023

Let's limit this to a plumbing discussion, the title notwithstanding.

I am going from 1in schedule K copper pipe to 1in Pex A. I can use either a male or female brass sweat adapter. I have asked about this but to do not have a consistent answer.

Should the brass be inside the copper, or the copper inside the brass. Male or female adapter? Also, for what reason?

I appreciate any knowledge you can lay on me regarding this.

EBEBRATT-Ed · September 2023

Brass to copper will work either way. Not an issue.

The issue is when connecting plastic like PVC to copper where it's best to use a female copper adapter with a male on the PVC. On a job with high pressure flanges are used.

hot_rod · September 2023

If it is hard copper tube, a Sharkbite type fitting could be used. The of both tubes is the same. Non threaded connections needed.

There is a sweat X pex adapter available also. Which eliminates the threads.

If it is soft K copper, a flare fitting is preferred.

mattmia2 · September 2023

I use whichever combination costs less.

Brass Inside, or Brass Outside? Do You Prefer Male or Female?

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