I-PEX copper fittings iyizixhumi zecopper ezisetshenziselwa ukuhlanganisa amaphethini e-PEX (amaphethini e-polyethylene axhunywe). Ngokuvamile zifaka ama-elbow, ama-tee, kanye nezixhumi, zifeza ukuhlanganiswa okuvalekile phakathi kwephethini ye-PEX nezixhumi zecopper ngezindlela ezifana nokucindezela, ukwandisa, noma ukuhlanganiswa okunezintambo. Zisetshenziswa kabanzi ekwakheni ukuhlinzekwa kwamanzi, ezinhlelweni zokushisa, nasekushiseni phansi.

Iphuzu eliyinhloko le-PEX copper fittings likhona ekuhlanganiseni izinzuzo ze-PEX pipes kanye ne-copper fittings: I-PEX pipes inikeza ukumelana nokugqwala, ukumelana nokudlidliza, kanye nempilo ende yokusebenza (ngaphezu kweminyaka engu-50), kanti i-copper fittings inikeza amandla aphezulu emishini, ukumelana nezinga lokushisa eliphezulu (ububanzi bezinga lokushisa obuvamile obusebenza -70℃ kuya ku-110℃), kanye nokumelana okuhle nokukhula, kuqinisekisa ukuxhumana okuthembekile. Le nhlanganisela ikakhulukazi ifanele izinhlelo ezinezimfuneko eziphezulu zokuphepha nokuhlala, njengeziteshi zamanzi ashisayo nezibandayo ezisemakhaya 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 ezihlukene zokuxhumanisa zithinta ukumelana nokushisa kanye nokumelana nokuphuka kwempahla yeph pipe; ngakho-ke, kubalulekile ukuqinisekisa ukuthi amafitting ne-PEX pipes zikhona ezingeni elifanayo kanye nezinto lapho ukhetha amafitting. Imikhiqizo kumele ihambisane nezindinganiso ezifanele, ezifana ne-GB/T 18992 mayelana nezilinganiso zengcindezi nezimvume zendawo, kanye ne-CJ/T205-2000 ne-CJJ/T98-2003 mayelana nokumelana nezinga lokushisa, izinga lokuxhumanisa (ngokuvamile 70%-89%), kanye nokumelana nokudlidliza. Amafitting uqobo kumele adlule ku-95℃/1.5MPa ukuhlolwa kwe-hydrostatic futhi ahlangabezane nezidingo zamandla okudonsa.