Ukuba usathandabuza ukuba ukhetha iivalvu zesango lentsimbi yomkhandi okanye intsimbi etyhidiweyo (WCB) iivalvu zesango, nceda ukhangele i-zfa valve valve ukwazisa umahluko omkhulu phakathi kwazo.

1. Ukwenza kunye nokuphosa zindlela ezimbini ezahlukeneyo zokucwangcisa.

Ukubunjwa: Isinyithi siyafudunyezwa kwaye sinyibilike kwaye emva koko sigalelwe kwisingundo sesanti okanye ukungunda.Emva kokuphola, iyaqina ibe yinto.Imingxuma yomoya iveliswa lula phakathi kwemveliso.
Forging: Ikakhulu usebenzisa iindlela ezifana ngehamile kumaqondo obushushu aphezulu ukwenza intsimbi ibe workpiece kunye imilo ethile kunye nobukhulu kwimo yeplastiki, kwaye utshintshe iimpawu zayo ezibonakalayo.

2. Umahluko ekusebenzeni phakathi kweevalvu zesango ezibunjiweyo kunyeIivalvu zesango le-WCB

Ngexesha lokubunjwa, isinyithi singena kwi-deformation yeplastiki, enefuthe lokucoca iinkozo, ngoko ke isetyenziswa rhoqo kwimveliso engenanto yamacandelo abalulekileyo.Ukusasa kuneemfuno kwizinto eziza kwenziwa.Ngokubanzi, intsimbi etyhidiweyo, i-aluminium, njl.I-Casting ayinayo izibonelelo ezininzi zokubumba, kodwa inokuvelisa iindawo ezineemilo eziyinkimbinkimbi, ngoko isetyenziswa rhoqo kwimveliso engenanto yamalungu axhasayo angadingi iimpawu eziphezulu zoomatshini.

2.1 Uxinzelelo

Ngenxa yomahluko kwiipropathi zezinto eziphathekayo, iivalvu zentsimbi ezibunjiweyo zinokumelana nempembelelo enkulu, kwaye iplastiki yazo, ukuqina kunye nezinye iipropathi zoomatshini ziphezulu kunezoIivalvu zeWCB.Ngoko ke, ingasetyenziselwa kwiimeko zokusebenza zoxinzelelo oluphezulu.Amanqanaba oxinzelelo oluqhelekileyo olusetyenziswayo lweevalvu zentsimbi ezibunjiweyo zezi: PN100;PN160;PN250;PN320;PN400, 1000LB~4500LB.Uxinzelelo oluqhelekileyo olusetyenziswayo lwee-valve ze-WCB zezi: PN16, PN25, PN40, 150LB ~ 800LB.

2.2 I-Diameter Nominal

Ngenxa yokuba inkqubo yokubumba ineemfuno eziphezulu zokubumba kunye nezixhobo, ububanzi beevalvu ezibunjiweyo zihlala zingaphantsi kwe-DN50.

2.3 Ubunakho bokuchasana nokuvuza

Igqitywe yinkqubo ngokwayo, ukuphosa kuthanda ukuvelisa i-blowhole ngexesha lokucubungula.Ke ngoko, xa kuthelekiswa nenkqubo yokubumba, amandla okuthintela ukuvuza kweevalvu ezityhidiweyo akulunganga njengaleyo yeevalvu ezibunjiweyo.
Ke ngoko, kwamanye amashishini aneemfuno eziphakamileyo zokuthintela ukuvuza, njengerhasi, igesi yendalo, i-petroleum, iikhemikhali kunye namanye amashishini, iivalve zetsimbi ezenziweyo zisetyenziswe ngokubanzi.

2.4 Imbonakalo

Iivalvu zeWCB kunye neevalvu zentsimbi ezibunjiweyo kulula ukwahlula ngenkangeleko.Ngokubanzi, iivalvu zeWCB zinembonakalo yesilivere, ngelixa iivalve zentsimbi ezibunjiweyo zinenkangeleko emnyama.

3. Umahluko kwiinkalo zesicelo

Ukhetho oluthile lwee-valve ze-WCB kunye neevalve zensimbi ezibunjiweyo zixhomekeke kwindawo yokusebenza.Ayinakwenziwa ngokubanzi malunga nokuba yeyiphi na imimandla esebenzisa iivalvu zentsimbi ezibunjiweyo kwaye ngawaphi amabala asebenzisa iivalvu zeWCB.Ukhetho kufuneka lusekelwe kwindawo ethile yokusebenza.Ngokuqhelekileyo, iivalvu ze-WCB azikwazi ukumelana ne-asidi kunye ne-alkali kwaye zinokusetyenziswa kuphela kwimibhobho eqhelekileyo, ngelixa iivalvu zentsimbi ezibunjiweyo zinokumelana noxinzelelo oluphezulu kwaye zinokusetyenziswa kwezinye iifektri ezinobushushu obuphezulu, njengezityalo zamandla kunye nezityalo zekhemikhali.Ivalve yeklasi.

4. Ixabiso

Ngokuqhelekileyo, ixabiso leevalve zentsimbi ezibunjiweyo liphezulu kunelo le-WCB.