I-PEX copper fittings iyizixhumi zensimbi ezisetshenziswa ukuxhuma amapayipi e-PEX (amapayipi e-polyethylene axhunywe ngokuhlanganyela). Ngokuvamile zifaka ama-elbow, ama-tee, kanye nezixhumi, zifeza ukuxhumana okuvalekile phakathi kwe-PEX pipe nezixhumi zensimbi ngezindlela ezifana nokucindezela, ukwandisa, noma ukuxhumana okunezintambo. Zisetshenziswa kabanzi ekwakheni ukuhlinzekwa kwamanzi, ezinhlelweni zokushisa, nasezinhlelweni zokushisa phansi.

Iphuzu eliyinhloko le-PEX copper fittings likhona ekuhlanganiseni izinzuzo ze-PEX pipes kanye ne-copper fittings: I-PEX pipes inikeza ukumelana nokugqwala, ukumelana nokuhudula, kanye nempilo ende yokusebenza (ngaphezu kweminyaka engu-50), kanti i-copper fittings inikeza amandla aphezulu omshini, ukumelana nezinga lokushisa eliphezulu (ububanzi bezinga lokushisa obuvamile obusebenza -70℃ kuya ku-110℃), kanye nokumelana okuhle nokuhudula, kuqinisekisa ukuxhumana okuthembekile. Le nhlanganisela ikakhulukazi ifanele izinhlelo ezinezidingo eziphezulu zokuphepha nokuhlala isikhathi eside, njengeziteshi zamanzi ashisayo nezibandayo zangaphakathi kanye nokushisa ngaphansi komhlaba. Ngokwezigaba nezindinganiso, i-PEX copper pipe fittings kumele ihambisane nohlobo lwe-PEX pipe (isb. PEX-a, PEX-b, noma PEX-c). Izindlela ezahlukene zokuxhumanisa zithinta ukumelana nokushisa kanye nokumelana nokuphuka kwezinto zeph pipe; ngakho-ke, kubalulekile ukuqinisekisa ukuthi amafitting ne-PEX pipes akhulu ngokufanayo nangokwakhiwa lapho kukhethwa amafitting. Imikhiqizo kumele ihambisane nezindinganiso ezifanele, njenge-GB/T 18992 mayelana nezilinganiso zengcindezi nezilinganiso zokubekezelela, kanye ne-CJ/T205-2000 ne-CJJ/T98-2003 mayelana nokumelana nezinga lokushisa, izinga lokuxhumanisa (ngokuvamile 70%-89%), kanye nokumelana nokuhudula. Amafitting ngokwawo kumele adlule ku-95℃/1.5MPa hydrostatic test futhi ahlangabezane nezidingo zamandla okuhuda.