1. Uxinzelelo lwegama (PN)
Uxinzelelo lwegama lixabiso lereferensi ehambelana namandla okumelana noxinzelelo lwamacandelo enkqubo yombhobho.Ibhekisa kuyilo olunikiweyo uxinzelelo olunxulumene namandla omatshini amacandelo ombhobho.
Uxinzelelo oluncinci lunamandla okumelana noxinzelelo lwemveliso (ezi zilandelayo ziivalvu) kwiqondo lokushisa elisezantsi.Izinto ezahlukeneyo zinobushushu obusezantsi obuhlukeneyo kunye namandla oxinzelelo.
Uxinzelelo lwegama, olumelwe sisimboli PN (MPa).I-PN luphawu lwendibaniselwano yoonobumba kunye namanani asetyenziselwa ireferensi enxulumene neempawu zoomatshini kunye neempawu ezinobungakanani bamacandelo enkqubo yemibhobho.
Ukuba uxinzelelo lwegama yi-1.0MPa, yirekhode njenge-PN10.Kwintsimbi etyhidiweyo kunye nobhedu ubushushu bereferensi yi-120 ° C: kwintsimbi yi-200 ° C kunye nentsimbi ye-alloy yi-250 ° C.
2. Uxinzelelo lomsebenzi (Pt)
Uxinzelelo olusebenzayo lubhekiselele kuxinzelelo oluphezulu oluchaziweyo ngokusekelwe kwiqondo lokushisa lokugqibela lokusebenza kwinqanaba ngalinye lomzila wokuthutha umbhobho wokusebenza ngokukhuselekileyo kwenkqubo yombhobho.Ukuthetha nje, uxinzelelo lokusebenza lolona xinzelelo luphezulu olunokuthi lunyamezele inkqubo ngexesha lokusebenza okuqhelekileyo.
3. Uxinzelelo loyilo (Pe)
Uxinzelelo loyilo lubhekisa kuxinzelelo oluphezulu olukhawulezileyo oluqhutywa yinkqubo yoxinzelelo lombhobho kudonga lwangaphakathi lwevalvu.Uxinzelelo loyilo kunye neqondo lokushisa elihambelanayo loyilo lisetyenziswa njengemeko yomthwalo woyilo, kwaye ixabiso layo aliyi kuba ngaphantsi koxinzelelo lokusebenza.Ngokuqhelekileyo, olona xinzelelo luphezulu inkqubo inokuthwala lukhethwa ngexesha lokubala lokuyila njengoxinzelelo loyilo.
4. Uxinzelelo lovavanyo (PS)
Kwiivalve ezifakiweyo, Uxinzelelo lovavanyo lubhekiselele kuxinzelelo ekufuneka i-valve ifikelele kuyo xa usenza amandla oxinzelelo kunye novavanyo lokuqina komoya.
5. Ubudlelwane phakathi kwezi ngcaciso zine
Uxinzelelo lwegama lubhekiselele kumandla oxinzelelo kwiqondo lokushisa elisezantsi, kodwa kwiimeko ezininzi, alisebenzi kwiqondo lokushisa elisezantsi.Njengoko ubushushu butshintsha, amandla oxinzelelo lwevalve nawo ayatshintsha.
Kwimveliso enoxinzelelo oluthile lwegama, uxinzelelo olusebenzayo olunokumelana nalo luchongwa ngukushisa okusebenzayo kwendawo.
Uxinzelelo oluqhelekileyo kunye noxinzelelo lokusebenza oluvumelekileyo lwemveliso efanayo luya kuhluka kumaqondo okushisa ahlukeneyo.Ukusuka kumbono wokhuseleko, uxinzelelo lovavanyo kufuneka lube lukhulu kunoxinzelelo oluncinci.
Kwinjineli, uxinzelelo lovavanyo> uxinzelelo lwegama> uxinzelelo loyilo> uxinzelelo lokusebenza.
Ngamnyeivelufa kuqukaivelufa butterfly, ivalve yesangokwayekhangela ivalveukusuka kwivalve ye-ZFA kufuneka ivavanywe uxinzelelo phambi kokuthunyelwa, kwaye uxinzelelo lovavanyo lukhulu okanye lulingana nomgangatho wovavanyo.Ngokuqhelekileyo, uxinzelelo lovavanyo lomzimba we-valve ngama-1.5 amaxesha oxinzelelo lwe-nominal, kwaye isitywina si-1.1 ngamaxesha oxinzelelo lwegama (ubude bexesha lovavanyo alikho ngaphantsi kwemizuzu emi-5).
