1. Iyini Ivaluvu Yesango?
Ivalvu yesango ivalvu esetshenziselwa UKUVULA NOKUVALA ukugeleza koketshezi epayipini.Ivula noma ivale i-valve ngokuphakamisa isango ukuvumela noma ukukhawulela ukugeleza koketshezi.Kufanele kugcizelelwe ukuthi i-valve yesango ayikwazi ukusetshenziselwa ukulawulwa kokugeleza, kodwa ifaneleka kuphela izicelo ezidinga ukugeleza okugcwele noma ukuvalwa okuphelele.
I-Gate Valve Standard: GB/DIN/API/ASME/GOST.
I-GB ejwayelekile:
| Idizayini | Ubuso nobuso | I-Flange | Isivivinyo |
| I-GB/T12234 | I-GB/T12221 | JB/T79 | I-JB/T9092 |
I-DIN ejwayelekile:
| Idizayini | Ubuso nobuso | I-Flange | Isivivinyo |
| I-DIN3352 | I-DIN3202 F4/F5 | I-EN1092 | EN1266.1 |
I-API ejwayelekile:
| Idizayini | Ubuso nobuso | I-Flange | Isivivinyo |
| I-API 600 | I-ASME B16.10 | I-ASME B16.5 | I-API 598 |
I-GOST ejwayelekile:
| Idizayini | Ubuso nobuso | I-Flange | Isivivinyo |
| I-GOST 5763-02 | I-GOST 3706-93. | I-GOST 33259-2015 | I-GOST 33257-15 |
2.Sango Valve Isakhiwo
Ama-valve esango ngokuvamile aqukethe izingxenye ezimbalwa ezibalulekile:
I-1) Umzimba we-valve: Ingxenye ebaluleke kakhulu ye-valve yesango.Izinto ezisetshenziswayo ngokuvamile zenziwe nge-ductile iron, WCB, SS, njll.
2) Isango: iyunithi yokulawula, okungaba ipuleti elinenjoloba noma ipuleti lensimbi elimsulwa.
3)Isiqu se-valve: sisetshenziselwa ukuphakamisa isango, elenziwe nge-F6A (i-ss 420 efojiwe), i-Inconel600.
4) Ibhonethi: igobolondo elingaphezulu komzimba wevalvu, wona kanye nomzimba wevalvu yakhe igobolondo levalvu yesango eliphelele.
5) Isihlalo sevalvu: indawo yokuvala lapho ipuleti lesango lithintana nomzimba wevalvu.
3. Yiziphi Izinhlobo Ezihlukene Zamavalvu Esango?
Ngokohlobo lwesakhiwo se-valve stem, ingahlukaniswa i-valve yesango ye-stem engaphumi kanye ne-valve yesango le-stem elikhuphukayo.
1)I-valve yesango ye-stem engaphumi:Ingaphezulu lesiqu se-valve ye-valve yesango ye-stem efihliwe ayinwebeki ngesondo lesandla.Ipuleti lesango liya phezulu noma phansi eduze kwesiqu se-valve ukuvula noma ukuvala i-valve yesango.I-valve plate yayo yonke i-valve yesango inomnyakazo wokuthutha.
2)I-Rising stem gate valve (i-valve yesango ye-OS&Y):Ingaphezulu lesiqu se-valve yesango elikhuphukayo ivezwa ngaphezu kwesondo lesandla.Lapho i-valve yesango ivuliwe noma ivaliwe, isiqu se-valve kanye nepuleti lesango kuyaphakanyiswa noma kwehliswe ndawonye.
4. Isebenza Kanjani Ivalve Yesango?
Ukusebenza kwe-valve yesango kulula futhi kuhlanganisa nezinyathelo ezilandelayo:
I-1) Isimo esivulekile: Uma i-valve yesango isesimweni esivulekile, ipuleti lesango liphakanyiswa ngokuphelele futhi uketshezi lungageleza kahle ngokusebenzisa umzila womzimba we-valve.
2) Isimo esivaliwe: Lapho i-valve idinga ukuvalwa, isango lihanjiswa phansi.Icindezelwa ngokumelene nesihlalo se-valve futhi ithinte indawo yokuvala yomzimba we-valve, ivimbele ukudlula koketshezi.
5. Isetshenziselwani i-Gate Valve?
Ama-valve esango anezinhlelo eziningi ezahlukene futhi angasetshenziswa ezimbonini nasezindaweni ezihlukahlukene, njenge:
I-1) Ukwelashwa kwamanzi: Ama-valve esango elithambile asetshenziswa kakhulu ekuhlanzeni amanzi kanye namanzi angcolile.
2) Imboni kawoyela negesi yemvelo: Amavalvu esango eliqinile asetshenziswa embonini kawoyela negesi yemvelo.
3) Ukucutshungulwa kwamakhemikhali: Ama-valve esango lensimbi engagqwali afanele ukulawula ukugeleza kwamakhemikhali noketshezi olubolayo ekucutshungulweni kwamakhemikhali.
4)Izinhlelo ze-HVAC: Amavalvu esango asetshenziswa ezinhlelweni zokufudumeza, zokungenisa umoya kanye nezomoya (HVAC).
Ngakho-ke, Ingabe Amavavu Esango Angasetshenziselwa Ukudonsa?
Njengoba kubonakala kulokhu okungenhla, impendulo ithi CHA!Inhloso yokuqala ye-valve yesango iwukuba ivuleke ngokugcwele futhi ivalwe ngokugcwele.Uma isetshenziselwa ngenkani ukulungisa ukugeleza, ukugeleza okungalungile, i-turbulence nezinye izenzakalo zizokwenzeka, futhi kuzodala kalula i-cavitation nokugqoka.
6. Izinzuzo Of Gate Valve
I-1) Ukugeleza okugcwele: Uma ivuliwe ngokugcwele, isango lilingana nephezulu lepayipi, lihlinzeka ngokugeleza okungavimbekiyo kanye nokwehla kwengcindezi encane.
2)0 Ukuvuza: Uma ipuleti lesango lihlangana nesihlalo sevalvu, kwakheka uphawu oluqinile ukuvikela uketshezi ukuthi lungavuzi ngevalvu.Izindawo zokuvala zesango kanye nesihlalo se-valve ngokuvamile zenziwe ngezinto ezifana nensimbi noma i-elastomer enwebekayo ukuze kuzuzwe ukuvalwa kwamanzi kanye nokuvala umoya ngokuvuza kwe-zero.
I-3) Ukuvalwa kwe-Bidirectional: Ama-valve esango angahlinzeka ngokuvalwa kwe-bidirectional, okuwenza aguquguquke kumapayipi agelezayo abuyele emuva.
4) Ukugcinwa okulula: Asikho isidingo sokudiliza i-valve yesango ngokuphelele.Udinga kuphela ukuvula ikhava ye-valve ukuze uveze ngokugcwele isakhiwo sangaphakathi ukuze sigcinwe.
7. Ububi Bamavalvu Esango
1)Uma kuqhathaniswa namanye ama-valve anomumo olula (njengamavalve ovemvane), umzimba wamavalvu usebenzisa izinto eziningi futhi izindleko ziphezulu.
2) Ububanzi obukhulu be-valve yesango kufanele bube buncane, ngokuvamile i-DN≤1600.I-valve uvemvane ingafinyelela ku-DN3000.
3)I-valve yesango ithatha isikhathi eside ukuvula nokuvala.Uma idinga ukuvulwa ngokushesha, ingasetshenziswa ne-actuator yomoya.