PEX Crimp ring test

[myudisc]

I'm installing PEX b for the first time, and I was wondering if the Go no go tool needs to fit correctly on all sides of the ring after crimping. I did one fitting and it fits correctly on one side but doesn't fit if I try the other direction. Any insight?

 

[ShaunCorbs]

In theory it should fit all around but it’s the nature of the beast with crimp rings one part will always be bigger as the material has to go somewhere etc