I-Flangediivalvu zesangoluhlobo lwevalvu yesango eqhagamshelwe ziiflange. Zivula kwaye zivalwe ngokushukuma ngokuthe nkqo kwesango ecaleni komgca osembindini wendlela kwaye zisetyenziswa kakhulu kulawulo lokuvala iinkqubo zemibhobho.

(Umfanekiso:I-valve yesango le-carbon steel flangedDN65)

Iintlobo zayo zingahlulwahlulwa zibe ziindidi ezimbini ngokusekelwe kwiimpawu zesakhiwo: ngokwemo yokuhamba kwesiqu sesango, kukho iintlobo zesiqu esiveziweyo kunye neziqu ezifihliweyo. Xa ivalvu yesango lesinyithi esiveziweyo ivuliwe okanye ivaliwe, isiqu siphuma kwisigqubuthelo sevalvu, okuvumela ukujongwa ngokuthe ngqo kwinqanaba lokuvula. Ifanelekile kwiimeko ezifuna ukujongwa ngexesha langempela, ezifana nokunikezelwa kwamanzi kamasipala kunye nezikhululo zokumpompa amanzi. Isiqu sevili lesandla levalvu yesango lesiqu esiveziweyo asoluli ngaphaya kwesigqubuthelo sevalvu. Inesakhiwo esincinci kwaye ifanelekile kwiimeko ezixinzelelweyo ezifana neMithombo yemibhobho engaphantsi komhlaba kunye nezityalo zeekhemikhali ezinezixhobo ezixineneyo. Ngokwesakhiwo sepleyiti yesango, kukho uhlobo lwe-wedge kunye nohlobo oluhambelanayo. Ipleyiti yesango le-wedge imilo ye-wedge, inokulingana okuqinileyo, kwaye ifanelekile kwiimeko zokusebenza zoxinzelelo oluphakathi noluphezulu (PN1.6~16MPa). Phakathi kwazo, ipleyiti yesango elastiki inokuhlawula umsantsa wobushushu kwaye idla ngokusetyenziswa kwimibhobho yokuthutha ngomphunga kunye neoyile eshushu. Iipleyiti zesango ezihambelanayo zinamacala amabini ahambelanayo kwaye zivaliwe ngoxinzelelo lwesixhobo. Zisetyenziswa kakhulu kwiimeko ezinoxinzelelo oluphantsi nolukhulu olunobubanzi obuyi-DN300 okanye ngaphezulu, njengemibhobho ephambili yokuhambisa amanzi. Zinokumelana okuphantsi kokuvula nokuvala kwaye zifanelekile ukusebenza rhoqo.

Ekusetyenzisweni kwayo, ngenxa yokuzinza okubalaseleyo kunye nokusebenza okunqumlekileyo koqhagamshelo lweflange, zisetyenziswa kakhulu kumashishini amaninzi: uhlobo lwentonga efihliweyo okanye uhlobo lwepleyiti yesango elihambelanayo lusetyenziswa kakhulu kubonelelo lwamanzi nokuhambisa amanzi kamasipala nolwakhiwo, kunye nemibhobho yokukhusela umlilo. Kwishishini le-petrochemical, iivalvu zesango le-wedge stem zihlala zisetyenziswa kwimibhobho yokuthutha ioyile ekrwada kunye neemveliso zeoyile ezicociweyo phantsi kweemeko zoxinzelelo oluphezulu. Kwicandelo lamandla namandla, iivalvu zesango le-wedge ezithambileyo ezinokumelana nobushushu obungcono zihlala zikhethwa kwimibhobho yamanzi okupholisa yesitishi samandla kunye nomphunga webhoyila. Iivalvu zesango elihambelanayo eliphantsi elinokumelana okunamandla nokungcola zifanelekile kumanzi amdaka emizi-mveliso kunye neenkqubo zamanzi ajikelezayo kwi-metallurgy kunye nonyango lwamanzi. Xa ukhetha, uxinzelelo, indawo kunye neempawu eziphakathi kufuneka ziqwalaselwe. Ukusebenza kwayo okuthembekileyo kuyenza ibe yinxalenye yolawulo oluphambili lweenkqubo zepayipi kumashishini ahlukeneyo.

Uhlobo lweevalvu zesango ezijijekileyo kufuneka luqwalasele uxinzelelo, indawo kunye neempawu eziphakathi. Ukusebenza kwayo okuthembekileyo kokuvala kwenza ukuba ibe yinxalenye yolawulo oluphambili kwiinkqubo zemibhobho yemizi-mveliso eyahlukeneyo. Ukuba unayo nayiphi na imfuno enxulumene noko, nceda unxibelelane nathi apha ngezantsi. Njengomvelisi weevalvu zesango leMveliso oneminyaka engama-20 ubudala, iJinbin Valve ikunika izisombululo zobungcali. (Ivalvu yesango enamaxabiso)