Ipayipi le-PUfuthiPA hoseizinhlobo ezimbili ezidumile zamapayipi asetshenziselwa izinhlelo zokusebenza ezihlukahlukene.Nakuba zombili zisebenzisa inhloso yokudlulisa uketshezi noma komoya, zinomehluko othile ohlukile ngokwezakhiwo nokusebenza kwazo.
Umehluko owodwa obonakalayo phakathi kwepayipi le-PU nepayipi le-PA ubulukhuni bazo.Amapayipi e-PU athambile uma kuqhathaniswa nozakwabo be-PA.Lokhu kuthamba kwenza amapayipi e-PU aguquguquke kakhudlwana futhi kube lula ukuwenza, okuvumela ukufakwa kalula nokusetshenziswa ezindaweni ezimpintshana.Ngakolunye uhlangothi, amapayipi e-PA anokuqina okuphezulu, okuwenza aqine kakhulu futhi angaguquguquki kancane.
Omunye umehluko obalulekile phakathi kwepayipi le-PU ne-PA hose uhlobene nezinga lokushisa kanye nokumelana nokucindezela.Amapayipi e-PA anokushisa okuphezulu nokumelana nokucindezela uma kuqhathaniswa namashubhu e-PU.Lokhu kubenza bafaneleke izinhlelo zokusebenza lapho ukudluliselwa kwamanzi ashisayo noma amagesi kuhilelekile, kanye nezinhlelo zokucindezela okuphezulu.Ngokuphambene nalokho, amapayipi e-PU awamelani namazinga okushisa aphezulu nezingcindezi, anciphisa ukusetshenziswa kwawo ezimweni ezinjalo.
Amapayipi e-PU aziwa ngokumelana kwawo okuhle nokuhuzuka.Angakwazi ukumelana nokuguga, okuwenza alungele ukusetshenziswa lapho ipayipi lihlangana nezindawo ezimbi noma lizwa ukunyakaza njalo.Le ndawo yamapayipi e-PU iqinisekisa ukuqina kwawo nempilo ende, iwanikeza umkhawulo phezu kwamapayipi e-PA ngokuphila isikhathi eside.
Mayelana nokumelana namakhemikhali, womabili amapayipi e-PU kanye ne-PA akhombisa ukumelana okuhle nohlu olubanzi lwamakhemikhali.Angakwazi ukumelana nokuchayeka kumafutha, izincibilikisi, ama-asidi, nama-alkali, okuwenza afanelekele ukusetshenziswa kwezimboni ezihlukahlukene.Kodwa-ke, kubalulekile ukuqaphela ukuthi ukumelana okuqondile namakhemikhali athile kungase kuhluke kuye ngokuthi i-hose yakhiwe kanjani, ngakho-ke kubalulekile ukukhetha uhlobo olufanele lwepayipi lokusetshenziswa okuhlosiwe.
Uma kukhulunywa ngokusebenza ngempumelelo kwezindleko, amapayipi e-PU avame ukuthengeka kakhulu uma kuqhathaniswa namapayipi e-PA.Lokhu kubenza babe ukukhetha okudumile kwezinhlelo zokusebenza lapho izithiyo zebhajethi ziyinkinga.Ukwengeza, amapayipi e-PU alula, okwenza ukuphatha nokuhamba kube lula futhi kube lula.
Kafushane, umehluko phakathi kwepayipi le-PU kanye nepayipi le-PA usebukhuni bazo, izinga lokushisa nokumelana nokucindezela, ukumelana nokuhuzuka, ukumelana namakhemikhali, kanye nokusebenza kahle kwezindleko.Amapayipi e-PU athambile, avumelana nezimo kakhudlwana, futhi anikeza ukumelana okuhle kakhulu nokuhuzuka, kuyilapho amapayipi e-PA anezinga lokushisa eliphezulu elingcono nokumelana nokucindezela.Ukukhetha phakathi kwakho kokubili kuncike ezimfuneko ezithile zohlelo lokusebenza, njengezinga lokushisa, ingcindezi, kanye nemvelo yoketshezi noma igesi edluliswayo.
Isikhathi sokuthumela: Jun-26-2023