Ipayipi le-PEX, noma ipayipi le-polyethylene elixhunywe, luhlobo lwepayipi oluguqula isakhiwo somolekyuli esihambisanayo se-polyethylene sibe isakhiwo senethiwekhi esinobukhulu obunemithombo emithathu ngokusebenzisa izindlela zomzimba noma zezemvelo, ngaleyo ndlela kuthuthukiswe ukumelana nokushisa, ukumelana nokukhululeka, kanye namandla omshini.

**Izindlela eziyinhloko zokukhiqiza ipayipi le-PEX zifaka phakathi inqubo ye-Engel (inqubo ye-peroxide), inqubo ye-silane, kanye nenqubo yokukhanya, ehambisana nezinhlobo ze-PEX-A, PEX-B, kanye ne-PEX-C, ngokulandelana.**

Inqubo ye-Engel yakha izixhumi zamakhemikhali ngokusebenzisa izinga lokushisa eliphezulu nengcindezi; inqubo ye-silane ixuba i-silane ngesikhathi sokuphuma ukuze ikhiqize isakhiwo esinobukhulu obunemithombo emithathu; futhi inqubo yokukhanya isebenzisa ama-ray γ noma β ukuze ikwazi ukuhlanganisa ngokomzimba. Izinhlobo ezihlukene ze-PEX pipes zihluke ekumelaneni nokushisa nasekuphukeni ngenxa kwengcindezi. Isibonelo, i-PEX-A ikakhulu yakhiwe ngesisekelo senethiwekhi emibili, kanti i-PEX-B ne-PEX-C ziqinile kakhulu ekushiseni ngenxa yesakhiwo sazo esinobukhulu obunemithombo emithathu.

**Impahla eyinhloko yokwakha ipayipi le-PEX yi-polyethylene enedensity ephezulu (HDPE), enezinto ezingeziwe, abaqalayo, abaxhunyayo, abakhiqizi, nezinye izinto ezingeziwe. Izinguquko zingangezwa futhi ukuze kuhlangatshezwane nezidingo ezikhethekile.** 1. Inqubo yayo yokukhiqiza ifaka phakathi ukulungiswa kwezinto zokwakha, ukuhlanganisa, ukujova kokushisa, ukwakhiwa kwepayipi, ukuxhunywa, ukuhlola, nokupakisha. Izithasiselo ezifana nezivimbela-ukugqwala zingathuthukisa ukumelana nokugqwala kanye nezimpilo zesevisi.

I-PEX pipes inezinhlelo eziningi zokusebenza, ikakhulukazi: ukuhlinzeka ngamanzi ngaphakathi, ukuhamba kwamanzi ashisayo namanzi ahlanzekile; izinhlelo ze-HVAC, ukushisa ngaphansi komhlaba nezishintshi zamanzi elanga; ukuhamba kwe-liquid embonini yokudla; ukuxhumana kwezimali nezintambo zikagesi; kanye neziteshi zokuhamba kwemidiya ye-chemical ehlakazekile.