I-PEX copper fittings yizixhumi zensimbi ezisetshenziswa ukuxhuma ama-PEX pipes (ama-pipes e-cross-linked polyethylene). Ngokuvamile zifaka ama-elbows, ama-tees, kanye nezixhumi, zifeza ukuxhumana okuvalekile phakathi kwe-PEX pipe kanye ne-copper fitting ngezindlela ezifana nokucindezela, ukwandisa, noma ukuxhumana okunezintambo. Zisetshenziswa kabanzi ekwakheni ukuhlinzekwa kwamanzi, izinhlelo zokushisa, kanye nokushisa ngaphansi komhlaba.

Isici esiyinhloko se-PEX copper fittings sitholakala 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 omshini, ukumelana nezinga lokushisa eliphezulu (ububanzi bezinga lokushisa obuvamile obusebenza -70℃ kuya ku-110℃), kanye nokumelana okuhle nokukhululeka, kuqinisekisa ukuxhumana okuthembekile. Le nhlanganisela ikakhulukazi ifanele izinhlelo ezinezidingo eziphezulu zokuphepha nokuhlala, 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 kwempahla yeph pipe; ngakho-ke, kubalulekile ukuqinisekisa ukuthi i-pipe fittings ne-PEX pipes zisebenza ku-gramu efanayo kanye nezinto lapho kukhethwa khona amafitting. Imikhiqizo kumele ihambisane nezindinganiso ezihlobene, njenge-GB/T 18992 mayelana nezilinganiso zengcindezi nezivumelwano 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 hydrostatic test futhi ahlangabezane nezidingo zamandla okudonsa.