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Izinto ezisixhenxe zevalvu yezeMveliso (1)
1. Ukusebenza kwamandla evalvu yezimboni: Ukusebenza kwamandla evalvu kubhekisa kubuchule bevalvu bokumelana noxinzelelo lwesixhobo. Ivalvu yimveliso yoomatshini ethwala uxinzelelo lwangaphakathi, ngoko ke kufuneka ibe namandla aneleyo kunye nokuqina ukuqinisekisa ukuba ihlala ixesha elide...Funda ngokugqithisileyo -
Ziziphi iintlobo ezahlukeneyo zeevalvu zebhola?
Njengevalvu esetyenziswa kakhulu, ivalvu yebhola ikwayeyona ntlobo yevalvu ibalaseleyo. Iindidi ezahlukeneyo zeentlobo ziyahlangabezana nesicelo somsebenzisi kwiimeko ezahlukeneyo eziphakathi, kwiindawo ezahlukeneyo zobushushu kunye neemfuno ezahlukeneyo zenkqubo kwinkqubo yokwenyani. Oku kulandelayo kwazisa umlinganiswa...Funda ngokugqithisileyo -
Indlela yokukhetha ivalvu yeglobe efanelekileyo
Ivalvu yokumisa yivalvu yebhloko, edlala indima enkulu ekunqumleni umbhobho. Ivalvu yeglobe yeyona valve isetyenziswa kakhulu, kwaye ikwayeyona ndlela ifanelekileyo yokuqhobosha. Ngenxa yokuba isebenza kakuhle ekulungiseni, kwaye xa ithelekiswa nezinye iintlobo zevalvu zesakhiwo, isasaza ukuguguleka...Funda ngokugqithisileyo -
Ungayandisa njani ubomi benkonzo yeevalvu zebhabhathane?
Ngenxa yesakhiwo sayo esilula, ukuyifaka lula, ubunzima obuphantsi, kunye nokuvula nokuvala ngokukhawuleza, iivalvu zebhabhathane zisetyenziswa kakhulu kwiinkqubo zemibhobho yemizi-mveliso kunye neyendawo yoshishino kunye neyomoya. Ukuba ivalvu esetyenziswa kakhulu inokwenza ixesha elide lomsebenzi wayo, iya kuvelisa ixabiso elikhulu...Funda ngokugqithisileyo -
Ububanzi bokusetyenziswa kunye neempawu zesakhiwo sevalvu ye-wedge esemgangathweni kazwelonke
Eyona valve yesango esemgangathweni yesizwe esetyenziswa kakhulu yivalvu yesango le-wedge. Uphawu lwayo lolwakhiwo kukuba iindawo ezimbini zokutywina kwisango le-wedge kunye neendawo zokutywina zemijelo emibini yokuhamba emzimbeni wevalvu zenza isibini sokutywina ukuze kufezekiswe isiphumo sokutywina. Ulwakhiwo lwayo lulula...Funda ngokugqithisileyo -
Umahluko phakathi kwevalvu yeglobe kunye nevalvu yesango kunye nokusetyenziswa kwazo ngokwahlukeneyo
Iivalvu zesango kunye neevalvu zeglobe ziivalvu ezisetyenziswa kakhulu. Xa ukhetha ivalvu yesango okanye ivalvu yeglobe, kunzima kubasebenzisi abaninzi ukwenza isigqibo esichanekileyo. Ngoko ke yintoni umahluko phakathi kwevalvu yeglobe kunye nevalvu yesango, kwaye ungayikhetha njani xa isetyenziswa ngokwenene? Ngokubanzi...Funda ngokugqithisileyo -
Indlela yokufaka ivalvu yebhola
Iivalvu ezininzi eziqhelekileyo ezisetyenziswa kwimibhobho yemizi-mveliso, iivalvu zebhola zinoluhlu olubanzi lokusetyenziswa, nokuba ngamanzi, ioyile, igesi okanye imibhobho yemidiya eqhelekileyo okanye iimeko zokusebenza ezinzima eziqulethe amasuntswana obunzima obuphezulu, nokuba kubushushu obuphantsi, ubushushu obuphezulu, okanye imeko-bume erhabaxa, wena Y...Funda ngokugqithisileyo -
Yintoni umahluko phakathi kwevalvu yokutywina ethambileyo kunye nevalvu yokutywina eqinileyo?
Ngokwezinto zomphezulu wokutywina, iivalvu zesango zinokwahlulwa zibe ziintlobo ezimbini: itywina eliqinileyo kunye netywina elithambileyo. Yintoni umahluko phakathi kwevalvu yokutywina ethambileyo kunye nevalvu yokutywina elukhuni: Ivalvu yesango yokutywina elukhuni: Izinto zokuvala kuzo zombini iindawo zokutywina zizinto zesinyithi, ezibizwa ngokuba yi "h...Funda ngokugqithisileyo -
Kutheni ivalvu yeglobe kufuneka yenzelwe ukuba ibe yindawo yokungena ephantsi kunye nendawo yokuphuma ephezulu
Kutheni ivalvu yeglobe kufuneka iyilwe njengevalvu yeglobe engaphantsi, iplagi ephezulu kunye nevalvu yeglobe enobubanzi obuncinci? Kwinkqubo yoyilo nokufakela, iplagi ephantsi kunye neplagi ephezulu zihlala zisetyenziswa, oko kukuthi, ivalvu yeglobe ihamba ukusuka ngaphantsi kweplagi yevalve ukuya ngaphezulu kweplagi yevalve. Ivalvu yeglobe enobubanzi obuncinci ...Funda ngokugqithisileyo -
Indlela yokukhetha ivalvu yebhabhathane ene-fluorine
Ivalvu yebhabhathane ene-fluorine luhlobo lwevalvu ye-lining esetyenziswa kakhulu kwi-asidi kunye ne-alkali kunye nezinye izinto ezibangela ukubola. Isetyenziswe kakhulu kwi-petroleum, iikhemikhali, amayeza, i-metallurgy, amandla ombane kunye namanye amashishini. Ngenxa yobunzima beempawu zayo zesakhiwo kunye ne-com...Funda ngokugqithisileyo -
Zeziphi iimeko zokusebenza kunye nezixhobo ezifanelekileyo kwiivalvu zebhabhathane zombane
Kukho iintlobo ezininzi zeevalvu zebhabhathane, kuquka ukunqunyulwa okukhawulezileyo kunye nokulungiswa okuqhubekayo. Isetyenziswa kakhulu kwiipayipi ezinkulu ezinobukhulu obuphantsi kolwelo kunye negesi. Ifanelekile kwiimeko apho iimfuno zokulahlekelwa koxinzelelo zingekho phezulu, ukulungiswa kokuhamba kwamanzi kufuneka, kunye nokuvulwa nokuvalwa...Funda ngokugqithisileyo -
Ulwakhiwo kunye neengxaki eziqhelekileyo zevalvu yebhabhathane
Okwangoku, ivalvu yebhabhathane yinxalenye esetyenziselwa ukulawula inkqubo yepayipi. Isetyenziswe kakhulu kwiindawo ezininzi ezifana nepetroleum, imboni yeekhemikhali, isinyithi, umbane wamanzi njalo njalo. Kwiteknoloji eyaziwayo yevalvu yebhabhathane, indlela yayo yokutywina isetyenziswa kakhulu...Funda ngokugqithisileyo
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