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A few PEX questions

hot_rod Member Posts: 22,150
for radiant work. Uponor 3/8 is my choice for under floor plate jobs in tight spaces.

Panel rads on home run systems are another place to consider 3/8.

Truth be known I have never owned a Wirsbo expander. I've used crimp rings on that tube for 15 years or more :)

hot rod
Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream


  • PeterGriffin
    PeterGriffin Member Posts: 79
    Crimping HePEX

    Can it/should it be done? We have two crimp manifolds that didn't get used in a housing job we completed. The Boss man said we're going to use them on a job we're doing for radiant heating. I know you have to expand Aquapex (although I fixed a leak on a house that had all Aquapex fittings crimped!!) so I just figured I'd ask.

    Also, I bought a set of three crimpers a while back on Ebay, and they came with a 3/8 crimper, will I ever use this?

    Thanks alot!!

    PS, I got my manometer in, it's rockin!! I'm waiting on an IR Thermometer and apparently I'm going for Viessman training soon!!
  • Timco
    Timco Member Posts: 3,040

    The 3/8 crimper is for supplies to a sink or toilet, etc...domestic. As for crimping Hepex or pex al pex, I have had no problems. The expander is wirsbo. The crimp is good for domestic pressures, and many manifolds have barb fittings for crimp type connections...

    Just a guy running some pipes.
  • PeterGriffin
    PeterGriffin Member Posts: 79

This discussion has been closed.