Ivalve yokulawula, ekwabizwa ngokuba yivalve yokulawula, isetyenziselwa ukulawula ubungakanani bolwelo.Xa inxalenye elawulayo yevalve ifumana umqondiso olawulayo, i-valve stem iya kulawula ngokuzenzekelayo ukuvulwa kunye nokuvalwa kwevalve ngokuhambelana nomqondiso, ngaloo ndlela ilawula izinga lokuhamba kwamanzi kunye noxinzelelo;ehlala isetyenziselwa ukufudumeza, igesi, i-petrochemical kunye neminye imibhobho.
Ivalve yokumisa, ekwaziwa ngokuba yivalve yokumisa, inokuvala ngokupheleleyo isitulo sevalve ngokufaka uxinzelelo ngokujikelezisa isiqu sevalve, ngaloo ndlela ithintele ukuhamba kolwelo;iivalvu zokumisa ziqhele ukusetyenziswa kwirhasi yendalo, irhasi enyibilikisiweyo, iasidi yesulfuric kunye nezinye irhasi edlayo kunye nemibhobho engamanzi.
Ivalve yesangoifana nesango.Ngokujikelezisa isiqu sevalve, ipleyiti yesango ilawulwa ukuba ihambe ngokuthe nkqo phezulu nasezantsi ukulawula ulwelo.Amakhonkco okutywina kumacala omabini eplate yesango angatywina ngokupheleleyo icandelo lonke.Ivalve yesango inokuvulwa ngokupheleleyo kwaye ivalwe ngokupheleleyo, kwaye ayinakusetyenziselwa ukulawula ukuhamba.Iivalvu zesango zisetyenziswa ikakhulu njengezixhobo zokuvalela kumanzi ompompo, ugutyulo, iinqanawa kunye neminye imibhobho.
Ivalve yokujonga ujingiixhomekeke kuxinzelelo lolwelo ukuvula isivalo sevalvu.Xa uxinzelelo lolwelo olukwisivalo sevalvu kunye nemibhobho yokuphuma lulungelelene, isigqubuthelo sevalvu sinokuvala ngokwaso ngomxhuzulane waso ukuze luthintele ulwelo ukuba lungadlulanga.Umsebenzi wayo ophambili kukuthintela ulwelo ukuba lungabuyeli ngasemva.Ukuqukuqela, kudidi lwevalvu oluzenzekelayo;isetyenziswa kakhulu kwi-petroleum, ikhemikhali, i-pharmaceutical kunye neminye imibhobho.
Ixesha lokuposa: Aug-31-2023