Flangediivalve zesangoluhlobo lwevalvu yesango edityaniswe ngeeflange. Ngokukodwa zivula kwaye zivale ngokuhamba ngokuthe nkqo kwesango kunye nomgca ophakathi wepaseji kwaye zisetyenziswa ngokubanzi kulawulo lokuvalwa kweenkqubo zemibhobho.

(Umfanekiso:Carbon steel flanged isango ivelufaDN65)

Iindidi zayo zinokuthi zihlulwe zibe ziindidi ezimbini ezisekelwe kwiimpawu zesakhiwo: ngokuhambelana nefom yentshukumo yesigxina sesango, kukho i-stem evezwe kunye neentlobo ezifihliweyo. Xa ivalve yesango yentsimbi etyhidiweyo ivuliwe okanye ivaliwe, isiqu siphumela ngaphandle kwesigqubuthelo sevalvu, sivumela ukuqwalaselwa ngokuthe ngqo kweqondo lokuvula. Ifanelekile kwiimeko ezifuna ukubeka iliso ngexesha lokwenyani, njengokubonelela ngamanzi kamasipala kunye nezikhululo zokumpompa amanzi. Isiqu sesikhondo sevalve yesango efihliweyo asidluli ngaphaya kwesivalo sevalve. Inolwakhiwo olubambeneyo kwaye ifanelekile kwizihlandlo zokunqanda indawo ezifana nemibhobho engaphantsi komhlaba Imithombo kunye nezityalo zekhemikhali ezinezixhobo ezixineneyo. Ngokwesakhiwo seplate yesango, kukho uhlobo lwe-wedge kunye nohlobo oluhambelanayo. Ipleyiti yesango le-wedge ine-wedge-shaped, kunye ne-tight seal fit, kwaye ifanelekile kwiimeko zokusebenza eziphakathi kunye noxinzelelo oluphezulu (PN1.6 ~ 16MPa). Phakathi kwazo, ipleyiti yesango elilastiki inokuhlawula umsantsa wobushushu kwaye ihlala isetyenziswa kwimibhobho yokuthutha i-oyile yomphunga kunye neshushu. Amacwecwe esango ahambelanayo anamacala amabini ahambelanayo kwaye atywinwe ngoxinzelelo lwe-medium. Ziye zisetyenziswe kakhulu kwiimeko eziphantsi koxinzelelo kunye nobubanzi obukhulu kunye nobubanzi be-DN300 okanye ngaphezulu, njengemibhobho yokubonelela ngamanzi. Zinenkcaso ephantsi yokuvula kunye nokuvala kwaye ifanelekile ekusebenzeni rhoqo.

Kwisicelo, ngenxa yozinzo olubalaseleyo kunye nokunqunyulwa kokusebenza koqhagamshelwano lweflange, lusetyenziswa ngokubanzi kumashishini amaninzi: uhlobo lwentonga efihliweyo okanye uhlobo lweplate yesango elihambelanayo lisetyenziswa ngokuqhelekileyo kumasipala kunye nokwakhiwa kwamanzi kunye nokukhupha amanzi, kunye nemibhobho yokukhusela umlilo. Kwishishini le-petrochemical, iivalvu zesango le-wedge stem zihlala zisetyenziswa kwimibhobho yothutho ye-oyile ekrwada kunye neemveliso ze-oyile esulungekileyo phantsi kweemeko zoxinzelelo oluphezulu. Kummandla wamandla kunye namandla, iivalvu zesango ezilastiki zewedge ezinokumelana nobushushu obungcono zihlala zikhethelwa kwisikhululo samandla okupholisa amanzi kunye nemibhobho yebhoyila yomphunga. Iivalvu zesango eziphantsi koxinzelelo oluphantsi olunokumelana ngokuqinileyo nokungcola zifanelekile kumanzi amdaka amashishini kunye neenkqubo zamanzi ezijikelezayo kwi-metallurgy kunye nonyango lwamanzi. Xa ukhetha ukhetho, uxinzelelo, indawo kunye neempawu eziphakathi kufuneka zithathelwe ingqalelo. Ukusebenza kwayo okuthembekileyo kwenza kube yinto ephambili yolawulo lweenkqubo zemibhobho kumashishini ahlukeneyo.

Ukukhethwa kohlobo lwee-valve zamasango e-flanged kufuneka zithathele ingqalelo uxinzelelo, indawo kunye neempawu eziphakathi. Ukusebenza kwayo okuthembekileyo kokuvalwa kwenza kube yinto ephambili yolawulo kwiinkqubo zemibhobho yamashishini ahlukeneyo. Ukuba unayo nayiphi na iimfuno ezinxulumene, nceda uqhagamshelane nathi ngezantsi. Njengomvelisi wevalvu yesango loShishino oneminyaka engama-20 ubudala, iValve yaseJinbin ikubonelela ngezisombululo zobungcali. (Ivalufa yeSango enamaxabiso)