Inhloso yokusebenzisa i-check valve ukuvimbela ukugeleza kwamanzi emuva kwe-medium. Ngokuvamile, i-check valve kufanele ifakwe endaweni yokukhipha ipompo. Ngaphezu kwalokho,i-check valve kufanele ifakwe endaweni yokukhipha i-compressorNgamafuphi, ukuze kuvinjelwe ukugeleza emuva kwe-medium, kufanele kufakwe i-valve yokuhlola emishinini, kudivayisi noma epayipini. Ngokuvamile, i-valve yokuhlola ukuphakama evundlile isetshenziswa epayipini elivundlile elinobubanzi obungu-50mm. Ama-valve okuhlola ukuphakama aqondile angafakwa kokubili epayipini elivundlile nelivundlile. I-valve engezansi ngokuvamile ifakwe kuphela epayipini elivundlile ekungeneni kwepompo, futhi i-medium igeleza isuka phansi iye phezulu. I-valve yokuhlola ukujika ingenziwa ibe yingcindezi yokusebenza ephezulu kakhulu, i-PN ingafinyelela ku-42MPa, kanti i-DN nayo ingaba nkulu kakhulu, ifike ku-2000mm noma ngaphezulu. Kuye ngezinto zegobolondo kanye nesivalo, ingasetshenziswa kunoma iyiphi i-medium yokusebenza nanoma yiluphi uhla lokushisa lokusebenza. I-medium ingamanzi, umusi, igesi, i-medium ebolayo, uwoyela, ukudla, imithi, njll. Uhla lokushisa lokusebenza oluphakathi luphakathi kuka--196~800℃. Indawo yokufaka i-valve yokuhlola ukujika ayikhawulelwe. Ngokuvamile ifakwe epayipini elivundlile, kodwa ingafakwa nasepayipini elivundlile noma epayipini elithambekele.

Izikhathi ezisebenzayo ze-ivalvu yokuhlola uvemvanezinomfutho ophansi futhi zinobubanzi obukhulu, futhi izikhathi zokufaka zilinganiselwe. Ngoba ingcindezi yokusebenza yevalvu yokuhlola i-butterfly ayikwazi ukuba phezulu kakhulu, kodwa ububanzi obujwayelekile bungaba bukhulu kakhulu, obungafinyelela ngaphezu kuka-2000mm, kodwa ingcindezi eqondile ingaphansi kuka-6.4MPa. Ivalvu yokuhlola i-butterfly ingenziwa ibe uhlobo lwe-clamp, oluvame ukufakwa phakathi kwama-flange amabili epayipi, kusetshenziswa ifomu lokuxhuma i-clamp. Indawo yokufaka yevalvu yokuhlola i-butterfly ayikhawulelwe. Ingafakwa epayipini elivundlile, noma epayipini eliqondile noma epayipini elithambekele.
Ivalvu yokuhlola i-diaphragm ifanele amapayipi athambekele ekushayweni ngamanzi. I-diaphragm ingasusa kahle i-water hammer ebangelwa ukugeleza kwamanzi emuva. Ngenxa yokuthi izinga lokushisa lokusebenza kanye nokucindezela kokusetshenziswa kwevalvu yokuhlola i-diaphragm kunqunyelwe yizinto ze-diaphragm, ngokuvamile isetshenziswa kumapayipi anengcindezi ephansi kanye nezinga lokushisa elijwayelekile, ikakhulukazi afanele amapayipi amanzi ompompi. Izinga lokushisa lokusebenza eliphakathi nendawo liphakathi kuka -20~120℃, kanti ingcindezi yokusebenza ingaphansi kuka-1.6MPa, kodwa ivalvu yokuhlola i-diaphragm ingenziwa ngobubanzi obukhulu, kanti i-DN ephezulu ingafinyelela ngaphezu kuka-2000mm. Amavalvu okuhlola i-diaphragm anokumelana okuhle kakhulu kwe-water hammer, isakhiwo esilula kanye nezindleko zokukhiqiza eziphansi, ngakho-ke asetshenziswe kabanzi eminyakeni yamuva nje.
Kusukela uphawu lwei-valve yokuhlola ibhola iyindilinga embozwe ngerabha, inamandla okuvala kahle, isebenza ngokwethembeka futhi iyakwazi ukumelana kahle nesando samanzi; futhi njengoba uphawu lungaba ibhola elilodwa noma amabhola amaningi, lungenziwa lube ububanzi obukhulu. Kodwa-ke, uphawu lwayo luyindilinga engenalutho eboshwe ngerabha, engafaneleki kumapayipi anomfutho ophezulu, kodwa kuphela kumapayipi anomfutho ophakathi nendawo naphansi. Njengoba izinto zegobolondo zevalvu yokuhlola ibhola zingenziwa ngensimbi engagqwali, kanti indilinga engenalutho yevalvu ingambozwa ngamapulasitiki obunjiniyela be-polytetrafluoroethylene, ingasetshenziswa futhi kumapayipi anemidiya ebolile ejwayelekile. Izinga lokushisa lokusebenza lalolu hlobo lwevalvu yokuhlola liphakathi kuka--101~150℃, umfutho ojwayelekile ungu-≤4.0MPa, kanti ububanzi bobubanzi obujwayelekile buphakathi kuka-200~1200mm.