Isakhiwo sevalve yebhola yahlulwe ngohlobo oludadayo kunye nohlobo olusisigxina

Ivalve yebhola ezinzileyo

Kukho igroove phantsi kwevalve yokulungisa ivalve yebhola. Embindini kukho ivalve yebhola. Kukho isiqu sevalve emacaleni aphezulu nasezantsi ukulungisa ibhola embindini. Ukusuka ngaphandle, ngokuqhelekileyo, i-valve yebhola enendawo yokuxhasa i-disc phantsi kwe-valve yebhola yi-valve yebhola esisigxina.

Ivalve yebhola edadayo

Ibhola idada embindini, kwaye akukho ndawo yenkxaso engezantsi yivalve yebhola edadayo

Obona bukhulu bevalve yebhola edadayo budla ngokuba yi-DN250

Ubuninzi be-valve yebhola esisigxina ingaba yi-DN1200

Owona mahluko mkhulu phakathi kweevalvu zebhola ezizinzileyo nezidadayo usekulungisweni kwebhola ephakathi. Ukulungiswa kulimaza itywina ngokwahlukileyo. Uhlobo olusisigxina luphucula ubomi benkonzo yevalve yebhola. Ivalve yebhola esisigxina inobomi obude benkonzo kunevalve yebhola edadayo. Ibhola yohlobo lwevalve yebhola iyadada kwaye ijikeleze kumngxuma, nto leyo eya kubangela ukuba itywina lidada kwaye lizike. Xa ivalve yebhola ijikeleza, amanqaku oxinzelelo ahlukile. Ukuba akukho nqaku elixhasayo, liya konakalisa itywina kumacala omabini. Ngethuba nje i-valve yebhola isetyenzisiwe, iya kubangela idigri ezahlukeneyo zokulahleka koxinzelelo. Xa ibhola inenqaku elixhasayo, ayiyi kubangela ukulahleka koxinzelelo okanye indawo yokulahlekelwa kwengcinezelo iya kuba yincinci kakhulu, ngoko ke ubomi be-valve yebhola esisigxina bude kunohlobo olujikelezayo. , Kungcono ukusebenzisa ivalve yebhola esisigxina kwezinye iimeko kunye nokutshintsha okuphezulu.

Ivalve yebholaukutywina

Iivalve zebhola zibandakanya iivalve zebhola ezimilise u-V, iivalve zebhola ephakathi,Iivalvu zebhola zePVC, njl.

Ezi zivalo ezahlukeneyo ezichazwe ngokwamaxesha ahlukeneyo

V uhlobo lwevalve yebhola

Ukuhamba kwevalve yebhola emile okwe-V yivalve yebhola ene-cut V port, eyivalve yebhola esisigxina.

Umda wesicelo: I-V port iqhutywe ngokukodwa. Yinto emile okwe-V. Njengemela, umsebenzi wayo kukusika imicu ethile. Kwamanye amasuntswana aqinileyo, aya kutyunyuzwa ngokuthe ngqo. Indlela yokulungisa ibhola nayo yahlukile. Ingakumbi ezinye iifektri zinamanzi amdaka okanye imithombo yeendaba eqina ngakumbi yegranular, njengolu hlobo lwevalve yebhola eyi-V isetyenziswa rhoqo.

Ivalve yebhola enesiqingatha esinesiqingatha

Ivalve ye-eccentric hemispherical ifana nevalve yebhola eyi-V. Undoqo wevalve sisiqingatha kuphela, kwaye ikwayivalve esisigxina. Isetyenziswa ikakhulu kumasuntswana aqinileyo. Zonke iivalvu zebhola eziqinileyo zisebenzisa i-eccentric hemispherical valves. Izityalo ezininzi zesamente nazo ziyakusebenzisa oku.

Zombini ivalve yebhola emile okwe-V kunye ne-eccentric semi-ball valve azikho kwicala elinye kwaye zinokuqukuqela kwicala elinye kuphela, hayi ukuhamba okuphindwe kabini, kuba ibhola yayo itywinwe kwelinye icala, kwaye isitywina asiyi kuqina xa sibethwa ngenqindi. icala elingasemva, kodwa liqukuqela kwicala elinye kuphela. Ukutywinwa kuya kuba ngqongqo xa uxinzelelo lusetyenziswa.

Ivalve yebhola yePVC

Amatywina eIivalvu zePVCzi-EPDM kuphela (i-ethylene propylene diene monomer), i-FPM (irabha enefluorine)

Ivalve yebhola eqinileyo

Isitywina esiqinileyo sinento ekhethekileyo

Kukho umthombo emva kwesihlalo sevalve esiqinileyo, kuba ukuba isihlalo sevalve esiqinileyo kunye nebhola zidibene ngokuthe ngqo, aziyi kujikeleza. Xa intwasahlobo ixhunyiwe emva kwesihlalo se-valve, ibhola iya kuba nokuguquguquka ngexesha lokujikeleza, ngenxa yokuba isitywina esinzima Ingxaki ekufuneka isonjululwe kukuba ibhola inokusebenza ngokuqhelekileyo, kodwa ibhola iya kuxutywa rhoqo yi-medium. Ukuba amanye amasuntswana abambekile kwisitywina sesihlalo sevalve, ayinakusetyenziswa. Ngoko ke, ilula kancinci kwaye ixhomekeke kubunzima bebhola ukuzolula. Ukuba itywina elithambileyo, ukuba amaqhekeza anamathele kwisitywina, ivalve iya konakala ngokuthe ngqo xa ivaliwe. Isitywina esiqinileyo siyafana nevalve yebhola emile okwe-V ngaphambi kokushiya umzi-mveliso nge-S60 engaphezulu. Isitywina kunye nebhola ziqinisiwe, ngoko zizinto ezinzima ngokubanzi. Ayinakwaphuka ukuba uyikhuhla kancinci

PPL itywina

Isitywina sikwanayo nempahla ye-PPL, igama layo liphuculwe i-PTFE, i-polytetrafluoroethylene, kodwa enye i-graphite yongezwa ukuze iguqule ukuxhathisa ubushushu obuphezulu, ubushushu obuphezulu bunokufikelela kwi-300 ° (ayinakumelana ixesha elide ukuya kwi-300 ° High. iqondo lobushushu), ubushushu obuqhelekileyo ngama-250°. Ukuba ufuna ixesha elide le-300 °, kufuneka ukhethe ivalve yebhola eqinile. Ukumelana nokushisa okuphezulu okuqhelekileyo kwesitywina esinzima kunokufikelela kwi-450 °, kwaye ukushisa okuphezulu kunokufikelela kwi-500 °.