Kukho iintlobo ezininzi zeiivalvu zebhabhathane, kuquka ukunqunyulwa ngokukhawuleza kunye nokulungiswa okuqhubekayo. Isetyenziswa kakhulu kwiipayipi ezinkulu ezinobukhulu obuphantsi kolwelo kunye negesi. Ifanelekile kwiimeko apho iimfuno zokulahlekelwa luxinzelelo zingekho phezulu, kufuneka ukulungiswa kokuhamba kwamanzi, kwaye iimfuno zokuvula nokuvala zikhawuleza; ngokuqhelekileyo ubushushu bungaphantsi kwama-300 ℃ kwaye uxinzelelo lungaphantsi kwama-40 kg (iivalvu zebhabhathane zihlala zisebenzisa uxinzelelo oluphantsi, njengezasekhaya. Zimbalwa kakhulu ezinokufikelela kwi-CL600), i-medium isetyenziswa ngokubanzi emanzini nakwigesi, kwaye i-medium ayifuni kakhulu, kwaye i-granular medium nayo ingasetyenziswa.
Njengevalvu yebhabhathane evaliweyo, yazisa uphuhliso olukhawulezileyo emva kokuvela kwerabha yokwenziwa, ngoko ke luhlobo olutsha lwevalvu yokuvala. Kwilizwe lam ukuya kuthi ga kwiminyaka yoo-1980, iivalvu zebhabhathane zazisetyenziswa kakhulu kwiivalvu ezinoxinzelelo oluphantsi, kwaye isihlalo sevalvu sasenziwa ngerabha yokwenziwa. Ngeminyaka yoo-1990, ngenxa yokwanda kotshintshiselwano namazwe angaphandle, iivalvu zebhabhathane ezitywiniweyo (zesinyithi-zesitywino) zaphuhliswa ngokukhawuleza. Okwangoku, kukho iifektri ezininzi zeevalvu ezinokuvelisa iivalvu zebhabhathane ezitywiniweyo zesinyithi ezixineneyo ngokuzinzileyo, nto leyo eyenza intsimi yokusetyenziswa kweevalvu zebhabhathane ibe banzi.
Izinto ezinokuthi zithuthwe kwaye zilawulwe yivalvu yebhabhathane ziquka amanzi, amanzi aqunyiweyo, amanzi ajikelezayo, indle, amanzi olwandle, umoya, igesi, igesi yendalo engamanzi, umgubo owomileyo, udaka, udaka lweziqhamo kunye nemixube eneziqina ezixhonyiweyo.
Iivalvu zebhabhathane zifanelekile ukulawula ukuhamba kwamanzi. Ekubeni ukulahleka koxinzelelo lwevalvu yebhabhathane kwipayipi kukhulu kakhulu, kuphindwe kathathu kunevalvu. Ke ngoko, xa ukhetha ivalvu yebhabhathane, impembelelo yokulahleka koxinzelelo kwenkqubo yepayipi kufuneka iqwalaselwe ngokupheleleyo. Ukulahleka koxinzelelo lweplate yebhabhathane kufuneka kuqwalaselwe xa iplate yebhabhathane ivaliwe. Ukuqina. Ukongeza, kuyimfuneko ukuqwalasela umda wobushushu bokusebenza obunokumelana nezinto zesihlalo sevalvu ye-elastic xa kushushu kakhulu. Ubude bolwakhiwo kunye nokuphakama ngokubanzi kwevalvu yebhabhathane kuncinci, isantya sokuvula nokuvala sikhawuleza, kwaye sineempawu ezilungileyo zolawulo lolwelo. Umgaqo wolwakhiwo lwevalvu yebhabhathane ufanelekile kakhulu ekwenzeni iivalvu ezinkulu. Xa ivalvu yebhabhathane ifuneka ukulawula ukuhamba kwamanzi, eyona nto ibalulekileyo kukukhetha ngokuchanekileyo ubungakanani kunye nohlobo lwevalvu yebhabhathane ukuze isebenze ngokufanelekileyo nangokufanelekileyo.
1. Ngokubanzi, xa kusenziwa i-throttling, ulawulo olulawulayo kunye nendawo yodaka, isakhiwo kufuneka sibe sifutshane ngobude kwaye sikhawuleze ngesantya sokuvula nokuvala (1/4 revolution). Kucetyiswa ukuba kunqunyulwe uxinzelelo oluphantsi (umahluko omncinci woxinzelelo), i-butterfly valve.
2. Ivalvu yebhabhathane ingasetyenziswa xa kukho uhlengahlengiso lweendawo ezimbini, umjelo onciphayo, ingxolo ephantsi, i-cavitation kunye ne-gasification, ukuvuza okuncinci emoyeni, kunye ne-abrasive media.
3. Xa ivalvu yebhabhathane isetyenziswa phantsi kweemeko ezikhethekileyo ezifana nokulungiswa kwe-throttling, okanye iimfuno ezingqongqo zokutywina, okanye ukukrala okukhulu, ubushushu obuphantsi (i-cryogenic) kunye nezinye iimeko zokusebenza, kuyimfuneko ukusebenzisa isitywina sesinyithi esenziwe ngokukodwa esinesixhobo sokulungisa i-eccentric kathathu okanye i-eccentric kabini. Ivalvu yebhabhathane enikezelweyo yomhlaba.
4. Ivalvu yebhabhathane esembindini ifanelekile kumanzi acocekileyo, amanzi amdaka, amanzi olwandle, amanzi anetyuwa, umphunga, igesi yendalo, ukutya, amayeza, kunye neoyile ezifuna ukuvalwa ngokupheleleyo, ukuvuza okungavuziyo kovavanyo lwegesi, ubomi benkonzo ephezulu, kunye nobushushu bokusebenza obuyi -10℃ ~ 150℃. Kunye nemibhobho eyahlukeneyo ye-asidi kunye ne-alkali kunye neminye.
5. Ivalvu yebhabhathane engavaliyo ethambileyo ifanelekile ekuvuleni nasekuvaleni ngeendlela ezimbini kunye nokulungiswa kwemibhobho yokukhupha umoya kunye nothuli, kwaye isetyenziswa kakhulu kwimibhobho yegesi kunye nemijelo yamanzi kwi-metallurgy, kushishino lokukhanya, kumbane, nakwiinkqubo ze-petrochemical.
6. Ivalvu yebhabhathane ephindwe kabini engavaliyo etywiniweyo yentsimbi ifanelekile ekufudumaleni ezidolophini, ekunikezelweni ngegesi, ekunikezelweni ngamanzi kunye neminye imibhobho yegesi, ioyile, iasidi kunye ne-alkali, njengesixhobo sokulawula nokulawula.
7. Ukongeza ekusetyenzisweni njengevalvu yokulawula inkqubo yokwahlulahlula igesi yesixhobo soxinzelelo olukhulu (i-PSA), ivalvu yebhabhathane yesinyithi etywiniweyo ene-triple eccentric yeJinyong ingasetyenziswa kakhulu kwi-petroleum, i-petrochemical, i-chemical, i-metallurgical, amandla ombane kunye neminye imimandla. Yivalvu yesango kunye nevalvu yeglobe. Yimveliso elungileyo eyahlukileyo.