Oku kulandelayo sisishwankathelo sobubanzi beevalvu zebhabhathane ezineendlela ezahlukeneyo zokunxibelelana kunye neentlobo zesakhiwo, ngokusekelwe kwimigangatho eqhelekileyo yoshishino kunye neendlela zokusetyenziswa. Ekubeni ububanzi obuthile bobubanzi bunokwahluka ngokuxhomekeke kumenzi kunye nemeko yesicelo (njengenqanaba loxinzelelo, uhlobo oluphakathi, njl.njl.), eli nqaku libonelela ngedatha yeevalvu ze-zfa.
Oku kulandelayo yidatha yesalathiso ngokubanzi ngobubanzi obuqhelekileyo (i-DN, mm).
1. Uluhlu lweevalvu zebhabhathane ezidityaniswe ngendlela yoqhagamshelo
1. Ivalvu yebhabhathane yeWafer
- Uluhlu lobubanzi: DN15–DN600
- Inkcazo: Iivalvu zebhabhathane zeWafer zincinci ngokwesakhiwo kwaye zihlala zisetyenziswa kwiinkqubo zoxinzelelo oluphakathi noluphantsi. Zinobubanzi obubanzi kwaye zifanelekile kwiipayipi ezincinci neziphakathi. Ukuba idlula i-DN600, ungakhetha ivalvu yebhabhathane enye yeflange (DN700-DN1000). Iidayamitha ezinkulu kakhulu (ezifana ne-DN1200 engaphezulu) azifumaneki ngenxa yeemfuno eziphezulu zokufakelwa kunye nokutywinwa.
2. Ivalvu yebhabhathane ephindwe kabini
- Uluhlu lobubanzi: DN50–DN3000
- Inkcazo: Ivalvu yebhabhathane eneflange ephindwe kabini ifanelekile kwiimeko ezifuna uzinzo oluphezulu lwesakhiwo kunye nokusebenza kokutywina. Inobubanzi obukhulu kwaye isetyenziswa rhoqo kwiinkqubo ezinkulu zemibhobho efana nokucoca amanzi, izitishi zamandla, njl.njl.
3. Ivalvu yebhabhathane esisicaba esinye
- Uluhlu lobubanzi: DN700–DN1000
- Inkcazo: Iivalvu zeflange enye zisebenzisa izinto ezincinci kuneevalvu zeflange ezimbini okanye zelug, nto leyo enciphisa iindleko zokuvelisa kwaye inciphisa neendleko zothutho. Ibotshelelwa kwiflange yombhobho kwaye ibotshelelwe endaweni yayo.
4. Ivalvu yebhabhathane yeLug
- Uluhlu lobubanzi: DN50–DN600
- Inkcazo: Iivalvu zebhabhathane zeLug (uhlobo lweLug) zifanelekile kwiinkqubo ezisekupheleni kombhobho okanye ezifuna ukuqhaqhwa rhoqo. Uluhlu lobubanzi luncinci kwaye luphakathi. Ngenxa yemida yesakhiwo, ukusetyenziswa kobubanzi obukhulu akuxhaphakanga.
5. Ivalvu yebhabhathane yohlobo lwe-U
- Uluhlu lweCaliber: DN100–DN1800
- Inkcazo: Iivalvu zebhabhathane zohlobo lwe-U zisetyenziswa kakhulu kwiipayipi ezinkulu, ezifana nokuhanjiswa kwamanzi kamasipala, unyango lwelindle, njl.njl., kwaye isakhiwo sifanelekile kwiimeko zokuphuma kwamanzi aphezulu kunye nomahluko ophantsi koxinzelelo.
| Inkcazo | Uluhlu lobungakanani obuqhelekileyo (DN) | Amanqaku aphambili |
|---|---|---|
| Ivalvu yebhabhathane yamanzi | DN15-DN600 | Ulwakhiwo oluncinci, olungabizi kakhulu, olusetyenziswa kakhulu kwiinkqubo zoxinzelelo oluphantsi ukuya koluphakathi; ubukhulu obukhulu kwiinkonzo ezingezizo ezibalulekileyo. |
| Ivalvu yeButterfly yeLug | DN50-DN600 | Ifanelekile kwinkonzo engasebenziyo kunye neenkqubo ezifuna ukuqhaqhwa kwicala elinye. Ukuphathwa koxinzelelo kungcono kancinci kunohlobo lwamanzi. |
| Ivalvu yebhabhathane e-Flanged enye | DN700-DN1000 | Ixhaphakile kwiinkqubo ezigqunywe okanye eziphantsi koxinzelelo; ubunzima bayo bulula kwaye kulula ukuyifaka. |
| Ivalvu yebhabhathane ephindwe kabini | DN50-DN3000 (ukuya kuthi ga kwi-DN4000 kwezinye iimeko) | Ifanelekile kwiindlela zoxinzelelo oluphezulu, ubukhulu obukhulu, kunye nezicelo ezibalulekileyo; ukusebenza kakuhle kokutywina. |
| Valve yeButterfly yohlobo lwe-U | DN50-DN1800 | Ngokwesiqhelo irabha igqunywe okanye igqunywe ngokupheleleyo ukuze ikwazi ukumelana nokugqwala kwiinkonzo zeekhemikhali. |
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2. Uluhlu lweevalvu zebhabhathane ezilinganiswa ngohlobo lwesakhiwo
1. Ivalvu yebhabhathane engaphakathi
- Uluhlu lweCaliber: DN50–DN1200
- Inkcazo: Ivalvu yebhabhathane esembindini (isitywino esithambileyo okanye isitywino se-elastic) inesakhiwo esilula, esifanelekileyo kwimidiya yobushushu obuphantsi kunye nobushushu obuqhelekileyo, ububanzi obuphakathi be-caliber, kwaye isetyenziswa kakhulu emanzini, kwigesi nakwezinye iinkqubo.
2. Ivalvu yebhabhathane engaqhelekanga kabini
- Uluhlu lweCaliber: DN50–DN1800
- Inkcazo: Ivalvu yebhabhathane engaqhelekanga kabini inciphisa ukuguguleka kwetywina ngoyilo olungaqhelekanga, ifanelekile kwiinkqubo zoxinzelelo oluphantsi noluphakathi, inoluhlu olubanzi lwe-caliber, kwaye isetyenziswa kakhulu kwi-oyile negesi, iikhemikhali kunye neminye imimandla.
3. Ivalvu yebhabhathane engaqhelekanga kathathu
- Uluhlu lweCaliber: DN100–DN3000
- Inkcazo: Ivalvu yebhabhathane engaqhelekanga kathathu (itywina eliqinileyo) ifanelekile kubushushu obuphezulu, uxinzelelo oluphezulu kunye neemeko zokusebenza ezinzima. Inoluhlu olukhulu lwe-caliber kwaye isetyenziswa rhoqo kwimibhobho emikhulu yemizi-mveliso, efana nombane, i-petrochemical, njl.
| Inkcazo | Uluhlu lobukhulu obuqhelekileyo | Amanqaku aphambili |
|---|---|---|
| Ivalvu yebhabhathane egxile kwiConcentric | DN40-DN1200 (ukuya kuthi ga kwi-DN2000 kwezinye iimeko) | Imigca ye-stem kunye neye-disc zilungelelaniswe kakuhle kwaye zilungele ukusetyenziswa koxinzelelo oluphantsi, ngokubanzi. |
| Ivalvu yeButterfly ephindwe kabini | DN100-DN2000 (ukuya kuthi ga kwi-DN3000) | Idiski ikhawuleza iphume esihlalweni xa ivuliwe ukuze inciphise ukuguguleka, isetyenziswa kwiimeko zoxinzelelo oluphakathi. |
| Ivalvu yeButterfly eQhelekileyo kathathu | DN100-DN3000 (ukuya kuthi ga kwi-DN4000) | Yenzelwe ukusetyenziswa kobushushu obuphezulu, uxinzelelo oluphezulu, ukungasebenzisi ukuvuza, ngokuqhelekileyo ibekwe kwisinyithi. |
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Ukuba ufuna ukubonelela ngeenkcukacha ezithe vetshe malunga nohlobo oluthile okanye uhlobo oluthile lwevalvu yebhabhathane, okanye ufuna ukuvelisa iitshathi ezifanelekileyo, nceda ucacise ngakumbi!