1. Iyini iValvu Yesango?
I-valve yesango iyi-valve esetshenziselwa UKUVULA NOKVALA ukugeleza koketshezi epayipini. Ivula noma ivala i-valve ngokuphakamisa isango ukuze ivumele noma inciphise ukugeleza koketshezi. Kufanele kugcizelelwe ukuthi i-valve yesango ayikwazi ukusetshenziselwa ukulawula ukugeleza, kodwa ifaneleka kuphela ezicelweni ezidinga ukugeleza okugcwele noma ukuvalwa okuphelele.
I-Valve Yesango Ejwayelekile: GB/DIN/API/ASME/GOST.
Izinga le-GB:
| Umklamo | Ubuso Nobuso | I-Flange | Ukuhlolwa |
| GB/T12234 | GB/T12221 | I-JB/T79 | I-JB/T9092 |
Izinga le-DIN:
| Umklamo | Ubuso Nobuso | I-Flange | Ukuhlolwa |
| I-DIN3352 | I-DIN3202 F4/F5 | EN1092 | EN1266.1 |
Izinga le-API:
| Umklamo | Ubuso Nobuso | I-Flange | Ukuhlolwa |
| I-API 600 | I-ASME B16.10 | I-ASME B16.5 | I-API 598 |
Izinga le-GOST:
| Umklamo | Ubuso Nobuso | I-Flange | Ukuhlolwa |
| I-GOST 5763-02 | I-GOST 3706-93. | I-GOST 33259-2015 | I-GOST 33257-15 |
2. Isakhiwo seValve yeSango
Ama-valve esango ngokuvamile aqukethe izingxenye eziningana ezibalulekile:
1) Umzimba we-valve: Ingxenye ebaluleke kakhulu ye-valve yesango. Izinto zokwakha zivame ukwenziwa ngensimbi ethambile, i-WCB, i-SS, njll.
2) Isango: iyunithi yokulawula, okungaba ipuleti elimbozwe ngerabha noma ipuleti lensimbi elimsulwa.
3) Isiqu sevalvu: esisetshenziselwa ukuphakamisa isango, esenziwe nge-F6A (i-ss 420 eyenziwe ngobumba), i-Inconel600.
4) Ibhonethi: igobolondo elingaphezulu komzimba wevalvu, elihlangana nomzimba wevalvu lakha igobolondo levalvu yesango eliphelele.
5) Isihlalo samavalvu: indawo yokuvala lapho ipuleti lesango lithinta khona umzimba wamavalvu.
3. Yiziphi Izinhlobo Ezihlukene Zama-Gate Valve?
Ngokusho kohlobo lwesakhiwo sesiqu se-valve, ingahlukaniswa ibe yi-valve yesango lesiqu elingakhuphuki kanye ne-valve yesango lesiqu elikhuphukayo.
1)Ivalvu yesango lesiqu esingavuki:Ingxenye ephezulu yesiqu sevalvu yevalvu yesango lesiqu esifihliwe ayinwebi ngesondo lesandla. Ipuleti lesango liya phezulu noma phansi eduze kwesiqu sevalvu ukuze livule noma livale ivalvu yesango. Yipuleti levalvu kuphela levalvu yesango lonke elinokunyakaza kokuhamba.
2)Ivalvu yesango lesiqu esikhuphukayo (ivalvu yesango le-OS&Y):Ingxenye ephezulu yesiqu se-valve yesango lesiqu esikhuphukayo ivezwa ngaphezu kwesondo lesandla. Uma i-valve yesango ivulwa noma ivaliwe, isiqu se-valve kanye nepuleti yesango kuyaphakanyiswa noma kwehliswe ndawonye.
4. Isebenza Kanjani Ivalvu Yesango?
Ukusebenza kwevalvu yesango kulula kakhulu futhi kuhlanganisa izinyathelo ezilandelayo:
1) Isimo sokuvuleka: Uma ivalvu yesango isesimweni sokuvuleka, ipuleti yesango iphakanyiswa ngokuphelele futhi uketshezi lungageleza kahle ngomsele womzimba wevalvu.
2) Isimo sokuvalwa: Uma ivalvu idinga ukuvalwa, isango liyasuswa liye phansi. Licindezelwa esihlalweni sevalvu futhi lithintane nobuso bokuvala bomzimba wevalvu, okuvimbela ukudlula koketshezi.
5. Isetshenziswa Kanjani I-Gate Valve?
Ama-valve esango anezindlela eziningi zokusebenza futhi angasetshenziswa ezimbonini nasezindaweni ezahlukene, njenge:
1) Ukwelashwa kwamanzi: Amavalvu esango lokuvala athambile avame ukusetshenziswa kakhulu ekuphathweni kwamanzi namanzi angcolile.
2) Imboni kawoyela negesi yemvelo: Ama-valve esango lokuvala aqinile asetshenziswa embonini kawoyela negesi yemvelo.
3) Ukucubungula ngamakhemikhali: Amavalvu esango lensimbi engagqwali afanele ukulawula ukugeleza kwamakhemikhali kanye noketshezi olubolayo ekucutshungulweni kwamakhemikhali.
4) Izinhlelo ze-HVAC: Ama-valve esango asetshenziswa ezinhlelweni zokushisa, ukungenisa umoya kanye ne-air conditioning (HVAC).
Ngakho-ke, Ingabe Ama-Gate Valve Angasetshenziswa Ekucindezeleni?
Njengoba kungabonakala ngenhla, impendulo ingu-CHA! Inhloso yokuqala yevalvu yesango iwukuba ivuleke ngokuphelele futhi ivalwe ngokuphelele. Uma isetshenziswa ngenkani ukulungisa ukugeleza, kuzokwenzeka ukugeleza okungafanele, ukuphazamiseka kanye nezinye izinto, futhi kuzobangela kalula ukuguguleka kanye nokuguga.
6. Izinzuzo zeValve yeSango
1) Ukugeleza okugcwele: Uma ivuliwe ngokugcwele, isango lilingana nengxenye ephezulu yepayipi, okuhlinzeka ngokugeleza okungaphazanyiswa kanye nokwehla okuncane kwengcindezi.
2)0 Ukuvuza: Lapho ipuleti lesango lithintana nesihlalo sevalvu, kwakheka uphawu oluqinile ukuvimbela uketshezi ukuthi lungaphumi ngevalvu. Izindawo zokuvala zesihlalo sesango nevalvu zivame ukwenziwa ngezinto ezifana nensimbi noma i-elastomer elastiki ukuze kufezwe ukuvalwa kwamanzi kanye nokuvalwa komoya ngaphandle kokuvuza.
3) Ukuvalwa kwezinhlangothi zombili: Ama-valve esango angahlinzeka ngokuvalwa kwezinhlangothi zombili, okwenza kube lula kakhulu kumapayipi anokugeleza okuguquguqukayo.
4) Ukulungiswa okulula: Asikho isidingo sokudiliza ivalvu yesango ngokuphelele. Udinga ukuvula isembozo sevalvu kuphela ukuze uveze ngokuphelele isakhiwo sangaphakathi ukuze silungiswe.
7. Ukungalungi Kwama-Valve Esango
1) Uma kuqhathaniswa namanye amavalvu anezimo ezilula (njenge-valve yovemvane), umzimba wamavalvu usebenzisa izinto eziningi futhi izindleko ziphakeme.
2) Ububanzi obukhulu bevalvu yesango kufanele bube buncane, ngokuvamile i-DN≤1600. Ivalvu yevemvane ingafinyelela ku-DN3000.
3) Ivalvu yesango ithatha isikhathi eside ukuyivula nokuyivala. Uma idinga ukuvulwa ngokushesha, ingasetshenziswa ne-actuator yomoya.