Ngaba kukho imfuneko engqongqo yolwalathiso lofakelo lweevalvu zebhola?

Ulwalathiso lofakelo lwee-valve zebhola luxhomekeke ngokuthe ngqo kuhlobo lwazo kunye neempawu zoyilo. Uninzi oluqhelekileyoiivalve zebholaakukho zithintelo zolwalathiso, kodwa iintlobo ezikhethekileyo zifuna ukuthotyelwa ngokungqongqo kwisalathiso esibonakalisiweyo sofakelo. Uhlalutyo oluthile ngolu hlobo lulandelayo:

Iivalvu zebhola eziqhelekileyo, ezinjengeevalve zebhola ezidadayo eziqhelekileyo nezilungisiweyoiivalve zebhola, ngokuqhelekileyo ayinayo imiqathango engqongqo yokuhlohla. Icandelo lokuvula kunye nokuvala lolu hlobo lwevalve yebhola yibhola enomjelo phakathi. Xa ivalve yebhola ivuleke ngokupheleleyo, isiphakathi singahamba phantse singaphazanyiswa ukusuka nakweliphina isiphelo setshaneli yebhola ukuya kwelinye icala. Umgaqo wokutywina uxhomekeke kwisitulo sevalve esicinezelwe ngokuqinileyo ngokuchasene nengqukuva phantsi koxinzelelo lwangaphambili okanye uxinzelelo oluphakathi, ukuphumeza ukutywinwa kwe-bidirectional. Ke ngoko, zombini ukufakelwa okulungileyo kunye nokungalunganga kunokusebenza ngokubanzi. Umzekelo, iivalvu zebhola ezidadayo eziqhele ukufunyanwa kwimibhobho yasekhaya kunye nediameter encinci zinokuhlangabezana neemfuno zokusetyenziswa xa zifakwe kumacala omabini ngaphandle kophawu olulodwa.

Nangona kunjalo, kukho ezinye iintlobo ezikhethekileyoiivalve zebholaumkhombandlela wayo wokufakela ubalulekile. Iivalvu ezinophawu lwendlela ziya kuba neentolo ezikrolwe ngokucacileyo kumzimba wevalve ebonisa indlela yokuhamba kwendlela, oku kuthetha ukuba ulwakhiwo lwangaphakathi lwevalve luyilwe kwaye lulungiselelwe indlela ethile yokuhamba. Ukufakela umva kunokuchaphazela isiphumo sokutywinwa okanye ubomi benkonzo. Ingundoqo ye-valve yebhola elawula i-V ine-V-shaped opening, eyenzelwe ngokukodwa ukulawula ukuhamba kunye neemfuno ezicacileyo zokuhamba. Ukufakela umva kunokutshintsha iimpawu zokuhamba, okukhokelela kummiselo ongachanekanga kunye nokukhawuleza ukunxitywa kwetywina. Iivalve zebhola ezintathu kunye neendlela ezine zineendlela zokuhamba ezintsonkothileyo kwaye kufuneka zifakwe ngokwendlela eyilelwe ukuhamba ngayo, ngaphandle koko ukuhanjiswa okuphakathi okumiselweyo okanye umsebenzi wokutshintsha awunakufezekiswa. Iivalvu zebhola ezinee-activators, ezifana nezo zifakwe i-actuator yombane okanye i-pneumatic, nangona ivalve ngokwayo inokuba-bi-directional, indawo yokusilela ye-actuator (eqhele ukuvuleka okanye ivalwe ngesiqhelo) ivalwe ngokudityaniswa noyilo lwesixokelelwano sombhobho. Ngethuba lofakelo, kufuneka kuqinisekiswe ukuba i-valve ikwinkqubo yokhuseleko olufunekayo (ivule ngokupheleleyo okanye ivalwe ngokupheleleyo) xa i-actuator ivaliwe okanye ikhutshwe.