Ivalve sisixhobo esisetyenziselwa ukulawula isalathiso, uxinzelelo kunye nokuhamba kolwelo kwinkqubo yolwelo, enokwenza i-medium (ulwelo, igesi, umgubo) kwimibhobho kunye nesixhobo sokuhamba okanye ukumisa nokulawula ukuhamba kwayo. Ivalve yinxalenye yolawulo ebalulekileyo kwinkqubo yokuthutha ulwelo.
Ukulungiselela ngaphambi kokusebenza
Ngaphambi kokuba usebenze i-valve, funda imiyalelo yokusebenza ngokucophelela. Ngaphambi kokuba usebenze, qiniseka ukuba uyazi indlela yokuhamba kwegesi, kwaye ubeke ingqalelo ukujonga ukuvula nokuvala iimpawu zevalve. Jonga inkangeleko yevalve ukubona ukuba ifumile na. Ukuba ithe yafuma, yomise; ukuba kufunyaniswe ukuba kukho ezinye iingxaki, zisingatheni kwangethuba kwaye ungasebenzi ngeempazamo. Ukuba ivalve yombane ibingasebenzi ngaphezulu kweenyanga ezi-3, jonga i-clutch phambi kokuba uqalise. Emva kokuqinisekisa ukuba isibambo sikwimo yezandla, khangela i-insulation, i-steering kunye nesekethe yombane yemoto.
Ukusebenza ngokuchanekileyo kwevalve yesandla
Ivalve yezandla yeyona valve isetyenziswa kakhulu. I-handwheel okanye isiphatho sayo siyilwe ngokwabasebenzi abaqhelekileyo, kuthathelwa ingqalelo amandla okutywinwa komphezulu kunye namandla okuvala ayimfuneko. Ngoko ke, akuvumelekanga ukuhamba nge-lever ende okanye i-wrench ende. Abanye abantu baqhele ukusebenzisa i-wrench, ngoko ke kufuneka banikele ingqalelo engqongqo kuyo. Xa uvula i-valve, kufuneka basebenzise amandla azinzileyo ukuze baphephe amandla amaninzi, okuya kubangela ukuvulwa nokuvalwa kwe-valve. Amandla kufuneka azinzile kwaye angachaphazeleki. Ezinye iindawo zeevalvu zoxinzelelo oluphezulu ezinempembelelo yokuvula nokuvalwa ziye zaqwalasela amandla empembelelo kunye nevalve jikelele ayinakulingana enye kwenye.
Xa i-valve ivuliwe ngokupheleleyo, jika isondo lesandla emva kancinci, ukwenzela ukuba imicu iqinile ukuphepha ukukhululeka kunye nomonakalo. Kwiivalvu zesikhondo ezivulekileyo, khumbula ukuma kwesikhondo sevalve xa ivuleke ngokupheleleyo kwaye ivalwe ngokupheleleyo ukunqanda ukubetha iziko elingaphezulu elifileyo xa livuleke ngokupheleleyo. Kukulungele ukujonga ukuba iyinto eqhelekileyo xa ivalwe ngokupheleleyo. Ukuba i-ofisi yevalve iyawa, okanye i-sundry enkulu ifakwe phakathi kwe-valve core seals, indawo ye-valve stem iya kutshintsha xa ivalve ivalwe ngokupheleleyo. Ukonakala kwindawo yokutywina ivalvu okanye ivili lesandla sevalvu.
Uphawu lokuvula i-valve: xa i-groove kumphezulu wentonga yevalve yevalve yebhola, ivalve yebhabhathane kunye nevalve yeplagi ihambelana nomjelo, ibonisa ukuba ivalve ikwindawo evulekileyo epheleleyo; xa intonga yevalve ijikeleza ama-90 ukuya ekhohlo okanye ekunene. Xa, i-groove i-perpendicular kumjelo, ebonisa ukuba i-valve ikwimeko evaliweyo ngokupheleleyo. Ezinye iivalve zebhola, iivalve zebhabhathane kunye neevalve zeplagi zivuleka xa isitshisi singqamene netshaneli, kwaye sivale xa isitshixo sithe nkqo. Iivalve zeendlela ezintathu kunye neendlela ezine ziya kuqhutywa ngokwamanqaku okuvula, ukuvala kunye nokubuyisela umva. Susa isiphatho esishukumayo emva kokusebenza.
Ixesha lokuposa: Mar-16-2020
