I-PEX copper fittings iyizixhumi zensimbi ezisetshenziselwa ukuhlanganisa ama-PEX pipes (ama-pipes e-polyethylene axhunywe ngokuhlanganyela). Ngokuvamile zifaka ama-elbows, ama-tees, kanye nezixhumi, zifeza ukuhlanganiswa okuvalekile phakathi kwe-PEX pipe kanye ne-copper fitting ngezindlela ezifana nokucindezela, ukwandisa, noma izixhumi ezine-thread. Zisetshenziswa kakhulu ekwakheni ukuhlinzekwa kwamanzi, izinhlelo zokushisa, kanye nokushisa ngaphansi komhlaba.

Iphuzu eliyinhloko le-PEX copper fittings likhona ekuxhumaneni kwezinzuzo 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 (ngokuvamile izinga lokushisa elisebenzayo elingu -70℃ kuya ku-110℃), kanye nokumelana okuhle nokukhula, kuqinisekisa ukuxhumana okuthembekile. Le ngxube ikhethekile efanelekile ezinhlelweni ezidinga ukuphepha okuphezulu nokuhlala isikhathi eside, njengamapayipi amanzi afudumele nawabanda ngaphakathi nezishisa phansi. Ngokuqondene nokuhlukaniswa 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 kwengcindezi kwempahla yephayiphi; ngakho-ke, kubalulekile ukuqinisekisa ukuthi i-pipe fittings kanye ne-PEX pipes zisebenza ngohlobo olufanayo kanye nezinto lapho kukhethwa khona amafitting. Imikhiqizo kumele ihambisane nezindinganiso ezihlobene, njenge-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 ngokwawo kumele adlule ku-95℃/1.5MPa hydrostatic test futhi ahlangabezane nezidingo zamandla okudonsa axiali.