Ndiyazibuza ukuba uqaphele ukuba isitshixo ekukhetheni izixhobo zokuxuba i-asphalt sisekuqinisweni kohlobo lwalo lwe-impeller. Ukongezelela ekuqwalaseleni iimeko zokuyila ukuxuba, amava adlala indima ebalulekileyo. Zeziphi iimfuno ekufuneka izixhobo zokuxuba i-asphalt ziyilwe ngokungqinelana?
Kukho iinkalo ezininzi ezifunekayo ukuba ziqwalaselwe, kungekhona kuphela iimpawu ze-shear-circulation ye-impeller; ukulungelelaniswa kwe-impeller kwi-viscosity yezinto eziphathekayo; iphethini yokuhamba eyenziwa yi-impeller, njl., kodwa kunye neempawu ze-impellers ezahlukeneyo kufuneka zidibaniswe neenjongo ezahlukeneyo zokuxuba. Makhe sixoxe ngombandela wokukhetha i-impeller.
Ngaphezu koko, umxholo oyintloko wokukhethwa kwemodeli awukona nje ukuzimisela kohlobo, kodwa kunye nezinto eziphathekayo emva kokumisela uhlobo. Ngokomzekelo, i-carbon steel, insimbi engenasici, i-glass-lined, njl. misela isiphumo kulo mba.