Kukho izinto ezininzi ekufuneka ziqwalaselwe xa ukhetha i impompo yecala lokwahlulwa kwe-axial kunye ne-impeller ngokuchanekileyo. 

Okokuqala, kufuneka sazi apho kufuneka ulwelo luhanjiswe kwaye ngeliphi izinga lokuhamba. Indibaniselwano yentloko kunye nokuhamba okufunekayo kubizwa ngokuba yindawo yomsebenzi. Indawo yomsebenzi ihambelana ngokuthe ngqo nejometri ye-impeller efunekayo. Usetyenziso olunompompo omde othe nkqo (intloko ephezulu) zifuna i-impellers ezinkulu zangaphandle zedayamitha kunezicelo ezinompompo omfutshane othe nkqo (ukumpompa).

Olunye uqwalaselo oluhambelana ngokuthe ngqo nobungakanani be-impeller ngumxholo olindelekileyo we-solids kwisicelo. Izicelo ezininzi zineentlobo ngeentlobo zezinto eziqinileyo kwimidiya epompelweyo. Ezi ziqina zinokususela kubutyobo obuncinane oburhabaxa njengesanti okanye iitshefu zentsimbi ukuya kwimathiriyeli ecolekileyo yefibrous ukuya kwizinto ezinkulu eziqinileyo ezilingana nebaseball okanye enkulu. Ipompo kunye ne-impeller ekhethiweyo kufuneka ikwazi ukudlula ezi ziqina ngelixa ugwema ukuvala kunye nomonakalo ekugqokeni. Ingqwalasela eyongezelelweyo kufuneka inikwe kwakhona kwisixhobo esisezantsi kwe impompo yecala lokwahlulwa kwe-axial. Ngelixa umpompo unokukhethwa ukuba udlulise uhlobo oluthile lwezinto eziqinileyo, akunakucingelwa ukuba umbhobho osezantsi, iivalve, kunye nezinye izixhobo zenkqubo ziya kuba namandla afanayo okuphatha. Ukwazi umxholo wezinto eziqinileyo ezilindelekileyo kulwelo akubalulekanga kuphela ekukhetheni ubungakanani bempompo efanelekileyo kunye ne-impeller, kodwa nasekukhetheni isimbo se-impeller esilungele isicelo.

Enye yezona zinto zixhaphakileyo zokuphatha i-impellers yi-impeller evulekileyo. Le impeller isetyenziswa ngokuqhelekileyo kumanzi amdaka kunye nokunyangwa kwamanzi amdaka kwaye inejometri equka iipaseji phakathi kwamagqabi anecala elivulekileyo elijongene ne-inlet. Izithuba phakathi kweencakuba zibonelela ngendlela egudileyo ye-impeller ukutyhala izinto eziqinileyo ezingenayo ukusuka kumngxuma wokufunxa i-impeller ukuya kwi-volute kwaye ekugqibeleni ngokukhutshwa kwempompo.

Enye inketho yokuphatha izinto eziqinileyo yi-vortex okanye i-recessed impeller. Olu hlobo lwe-impeller lufakwe ngaphakathi kwe-casing (ukudala indawo enkulu evulekileyo phakathi kwe-impeller kunye ne-suction port) kunye ne-induces motion fluid ngokusebenzisa i-vortices eyenziwe ngokujikeleza ngokukhawuleza kwe-impeller. Ngelixa le ndlela ingasebenzi kakuhle, ibonelela ngeengenelo ezininzi kwiindlela eziqinileyo. Iinzuzo eziphambili yindawo enkulu yasimahla kunye nesithintelo esincinci kwipaseji eqinileyo.

Iimpompo ezisetyenziswa kwiindawo eziphakamileyo zineseti yazo yezinto eziqinileyo zokusingatha imiba. Kuba ezi zicelo ngokuqhelekileyo zisebenzisa imibhobho emincinci, ubungakanani bokudlula okuqinileyo kwenkqubo yonke kufuneka kuthathelwe ingqalelo, hayi impompo kuphela. Ngokuqhelekileyo, i-axial ityala lokwahlula abavelisi bempompo abanikezela iimpompo zoxinzelelo oluphezulu baya kubandakanya isihlunu kwindawo yokungena ukuthintela ukuqina okukhulu ekungeneni kwimpompo. Oku kulungele ukusetyenziswa koxinzelelo oluphezulu apho kulindeleke izinto eziqinileyo ezincinci, kodwa kunokubangela ukuvala ukuba izinto eziqinileyo ziyaqokelelana kumphezulu wesikrini.

Kukho izinto ezininzi ekufuneka ziqwalaselwe xa ukhetha ukwahlula kwe-axial efanelekileyo impompo yetyala kunye ne-impeller, kunye nokuqonda iindlela ezahlukeneyo zeempompo kunye ne-impellers zihlala zilelona nyathelo libalulekileyo.