I-PEX copper fittings yizixhumi zensimbi ezisetshenziswa ukuhlanganisa amaphethini e-PEX (amaphethini e-polyethylene axhunywe ngokuhlanganyela). Ngokuvamile zifaka ama-elbow, ama-tee, kanye nezixhumi, zifeza ukuhlanganiswa okuvalekile phakathi kwephethini ye-PEX nezixhumi zensimbi ngezindlela ezifana nokucindezela, ukwandisa, noma ukuhlanganiswa okunezintambo. Zisetshenziswa kabanzi ekwakheni ukuhlinzekwa kwamanzi, ezinhlelweni zokushisa, nasezinhlelweni zokushisa ngaphansi komhlaba.

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 (ngaphezulu kweminyaka engu-50), kanti i-copper fittings inikeza amandla aphezulu emishini, ukumelana nezinga lokushisa eliphezulu (ngokuvamile izinga lokushisa elisebenzayo elingu- -70℃ kuya ku-110℃), kanye nokumelana okuhle nokukhululeka, kuqinisekisa ukuxhumana okuthembekile. Le nhlanganisela ikakhulukazi ifanelekile ezinhlelweni ezinezimfuneko eziphezulu zokuphepha nokuhlala isikhathi eside, njengemigudu yamanzi ashisayo naphakathi kokubanda nezokushisa eziphansi. 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 kwempahla yeph pipe; ngakho-ke, kubalulekile ukuqinisekisa ukuthi amafitting kanye ne-PEX pipes zikhona ezingeni elifanayo kanye nezinto lapho ukhetha amafitting. Imikhiqizo kumele ihambisane nezindinganiso ezihlobene, njenge-GB/T 18992 mayelana nezilinganiso zengcindezi nezilinganiso zokubekezelela, kanye ne-CJ/T205-2000 kanye 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.