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Is it normal for a PEX-B fitting to be able to rotate in the tubing after crimping with copper crimp rings?

I’m using Apollo fittings, tubing, and copper crimp rings along with the IWISS iCrimp angle-head crimp tool. The go/no-go gauge seems to be able go halfway around the crimp ring still. I’ve installed a couple dozen fittings already and either this wasn’t the case or I never noticed before. But now I’ve noticed with my last few crimps that I’ve made. I’m worried about leaks now.

John DiBaggio
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Yes, perfectly normal, and saves buying unions where transitioning to pipe-thread fittings.

Trust the go/no-go gauge on the crimp rings

Ecnerwal
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