Xa kufikwa kwiinkqubo zolawulo lolwelo lwemizi-mveliso,iivalvu zesangozizinto eziyimfuneko kakhulu. Eli nqaku liphononongaiindawo zevalvu yesango, imisebenzi yabo, iimpawu, kunye nezinto ezibalulekileyo ekufuneka ziqwalaselwe xa bekhethaumenzi wevalvu yesangookanyeumthengisi, ngakumbi kwiiTshayinaapho iimveliso ezisemgangathweni ophezulu zikhuphisana khonaamaxabisozifumaneka ngokubanzi.
Yintoni iValve yeSango
A ivalvu yesangoyivalvu ehamba ngomgca eyenzelwe ukuvula okanye ukuvala ukuhamba kolwelo kwiipayipi. Isebenza ngokuphakamisa "isango" eliyingxande okanye elijikelezayo (idiski emile okwesikwele) liphume kwindlela yolwelo. Eyaziwa ngokunciphisa uxinzelelo xa ivuliwe ngokupheleleyo, iivalvu zesango zilungele ukusetyenziswa kokuzihlukanisa kwimizi-mveliso yeoyile, igesi, amanzi kunye neekhemikhali.
Uphawu lweValve yeSango
Kwizicwangciso zobunjineli,uphawu lwevalvu yesangoimelwe ngumfanekiso olula: oonxantathu ababini abajonge omnye komnye kunye nomgca othe nkqo owahlulayo. Olu phawu lunceda iinjineli kunye neengcali ukuba zichonge ngokukhawuleza iintlobo zeevalvu kwiinkqubo zemibhobho ezintsonkothileyo.
Iinxalenye zeValve zeSango eliPhambili kunye nemisebenzi yazo
Ukuqondaiindawo zevalvu yesangoibaluleke kakhulu kulondolozo kunye nokuthengwa kwezinto. Nazi izinto eziphambili:
1. Umzimba: Isakhiwo esiphambili esigcina iindawo zangaphakathi, eziqhele ukwenziwa ngentsimbi ephothiweyo, intsimbi engatyiwayo, okanye ithusi.
2. Ibhonethi: Inamathele emzimbeni, igquma isiqu kwaye inika isitywino esingavuziyo.
3. Isango (Idiski): Umqobo oshukumayo olawula ukuhamba kwamanzi. Iintlobo eziqhelekileyo ziquka i-wedge, imela, kunye namasango ahambelanayo.
4. Isiqu: Iqhagamshela ivili lesandla okanye i-actuator kwisango, idlulisa intshukumo yokuvula/ukuvala ivalvu.
5. Isihlalo: Umphezulu wokuvala apho isango lihlala khona xa livaliwe, ukuqinisekisa ukuba livaliwe kakuhle.
6. Ukupakisha: Isisitheliso se-gland esijikeleze isiqu ukuthintela ukuvuza kolwelo.
7. Ivili lesandla/Isixhobo sokulungisa izinto: Indlela yokusebenza ngesandla okanye ngokuzenzekelayo yokusebenza kwevalvu.
Izinto kunye noyilo lwenxalenye nganye lunefuthe ekuqineni, ukunyamezela ubushushu, kunye nokuhambelana nemidiya (umz., ulwelo olubolayo).
Ukukhetha Umenzi okanye Umthengisi weValve yeSango ethembekileyo
Xa ufuna ulwaziiivalvu zesango, ukusebenzisana nomntu ohloniphekileyoumenziokanyeumzi-mvelisokuqinisekisa ukuthembeka kwemveliso. Nantsi into ekufuneka uyiqwalasele:
- Umgangatho wezinto eziphathekayo: Qinisekisa iziqinisekiso (umz., i-ASTM, i-ISO) zezinto ezifana nentsimbi engagqwaliyo okanye intsimbi yekhabhoni.
- Ukwenziwa ngokwezifiso: UkukhokelaababonelelingaphakathiiTshayinazihlala zibonelela ngezisombululo ezenzelwe wena kwiizicelo ezizodwa.
- IxabisoNgelixaiTshayinaAbavelisi abasekelwe kwiindlela ezingabizi kakhulu, balinganisela ukufikeleleka kunye nomgangatho.
- Imigangatho yoVavanyo: Qinisekisa ukuba iivalvu ziyahlangabezana nemigangatho ye-API, i-ANSI, okanye eminye imigangatho yoshishino.
Kutheni iiValve zeSango loMthombo ezivela eTshayina
iTshayinaIlawula imarike yeevalvu zehlabathi ngenxa yeziseko zayo zokuvelisa eziphambili kunye nabasebenzi abanezakhono.iifektridibanisa ubunjineli obuchanekileyo kunye nokhuphiswanoamaxabiso, nto leyo eyenza ukuba ibe lukhetho olukhethwayo kubathengi bamanye amazwe. Ukongeza, uninziababoneleliunikezela ngenkxaso epheleleyo emva kokuthengisa, kuquka nezinye izinto ezingasetyenziswangaiindawo zevalvu yesango.
Isiphelo
Ukusuka embilinini yaboiindawo zevalvu yesangokwimbonakalo yabo yesicwangciso ngeuphawu lwevalvu yesango, ezi valve zidlala indima ebalulekileyo kwiinkqubo zoshishino. Nokuba utshintsha izinto okanye uthenga iivalvu ezintsha, beka phambili umgangatho kwaye usebenzisane nabantu abathembekileyo.abavelisiokanyeababoneleli—ingakumbi kwiiTshayina, apho uyilo olutsha luhlangabezana nexabiso elifikelelekayo.
Ngokuqonda ubunzima beivalvu yesango, ungenza ngcono ukusebenza, unciphise ixesha lokungasebenzi, kwaye wenze izigqibo zokuthenga ezingabizi kakhulu.
Ixesha leposi: Februwari-19-2025