Ivalvu ye-SDV (Ivalvu Yokuvala)

Incazelo emfushane:

IShayina, i-SDV Valve, Ukukhiqiza, Ifektri, Intengo, iValve Yokuvala, ucezu olulodwa, izingcezu ezimbili, izingcezu ezintathu, i-full bore, i-reduce bore, i-ESDV, izinto zamavalvu zine-A216 WCB, A351 CF3, CF8, CF3M, CF8M, A352 LCB, LCC, LC2, A995 4A. 5A, Inconel, Hastelloy, Monel kanye nezinye izinhlobo ezikhethekile. Ukucindezela kusuka ku-Class 150LB kuya ku-2500LB.

Sithumelele i-imeyili

Imininingwane Yomkhiqizo

Amathegi Omkhiqizo

✧ Incazelo

I-valve ye-SDV (i-Valve Yokuvala) iyi-valve enesivalo esinomumo ongu-V ohlangothini olulodwa lwe-spool yesigamu sebhola. Ngokulungisa ukuvulwa kwe-spool, indawo enqamulayo yokugeleza okuphakathi iyashintshwa ukuze kulungiswe ukugeleza. Ingasetshenziswa futhi ekulawuleni ukushintsha ukuze kubonakale ukuvulwa noma ukuvalwa kwepayipi. Inomphumela wokuzihlanza, ingafinyelela ukulungiswa okuncane kokugeleza ebangeni elincane lokuvula, isilinganiso esilungisekayo sikhulu, sifanelekile kwi-fiber, izinhlayiya ezincane, imidiya ye-slurry.
Ingxenye yokuvula nokuvala yevalvu yebhola yohlobo lwe-V iyindilinga enomzila ojikelezayo, futhi ama-hemispheres amabili axhunywe ngebhawodi futhi ajikeleza ngo-90° ukuze kufezwe injongo yokuvula nokuvala.
Isetshenziswa kabanzi ohlelweni lokulawula oluzenzakalelayo lwe-petroleum, imboni yamakhemikhali nokunye.

✧ Amapharamitha Okungena Eceleni Kwamavalvu Ebhola Ahlanganisiwe Ngokugcwele

Umkhiqizo	I-valve ye-SDV (Valve yokuvala) (Imbobo ye-V)
Ububanzi obujwayelekile	I-NPS 2”, 3”, 4”, 6”, 8”, 10”, 12”, 14”, 16”, 20”
Ububanzi obujwayelekile	Ikilasi 150, 300, 600, 900, 1500, 2500.
Qeda Uxhumano	I-Flanged (RF, RTJ), BW, PE
Ukusebenza	I-Lever, I-Worm Gear, I-Bare Stem, I-Pneumatic Actuator, I-Electric Actuator
Izinto zokwakha	Ukusakaza: A216 WCB, A351 CF3, CF8, CF3M, CF8M, A352 LCB, LCC, LC2, A995 4A. 5A, Inconel, Hastelloy, Monel
Isakhiwo	Imbobo Egcwele Noma Encishisiwe, I-RF, i-RTJ, i-BW noma i-PE, Umnyango oseceleni, umnyango ophezulu, noma umklamo womzimba ohlanganisiwe Ukuvimba Okuphindwe Kabili Nokopha (DBB), Ukuhlukaniswa Okuphindwe Kabili Nokopha (DIB) Isihlalo esiphuthumayo kanye nomjovo wesiqu Idivayisi Engaguquki
Umklamo kanye noMkhiqizi	I-API 6D, i-API 608, i-ISO 17292
Ubuso Nobuso	I-API 6D, i-ASME B16.10
Qeda Uxhumano	I-BW (ASME B16.25)
	I-MSS SP-44
	I-RF, i-RTJ (i-ASME B16.5, i-ASME B16.47)
Ukuhlolwa Nokuhlolwa	I-API 6D, i-API 598
Okunye	I-NACE MR-0175, NACE MR-0103, ISO 15848
Kuyatholakala futhi nge	I-PT, UT, RT,MT.
Umklamo ophephile emlilweni	I-API 6FA, i-API 607

✧ Izici zevalvu ye-SDV (Ivalvu Yokuvala) (imbobo ye-V)

1. Ukumelana koketshezi kuncane, i-flow coefficient inkulu, isilinganiso esilungisekayo siphezulu. Singafinyelela ku-:100:1, esikhulu kakhulu kunesilinganiso esilungisekayo se-valve eqondile yokulawula isihlalo esisodwa, i-valve elawula izihlalo ezimbili kanye ne-valve elawula i-sleeve. Izici zayo zokugeleza cishe zilingana nephesenti.

2. ukuvala okuthembekile. Izinga lokuvuza kwesakhiwo sensimbi esiqinile yi-Class IV ye-GB/T4213 "i-Pneumatic Control Valve". Izinga lokuvuza kwesakhiwo se-soft seal yi-Class V noma i-Class VI ye-GB/T4213. Ngesakhiwo sokuvala okuqinile, indawo yokuvala ye-ball core ingenziwa nge-hard chromium plating, i-surfacing cobalt based cemented carbide, i-spraying tungsten carbide resistant wear coating, njll., ukuthuthukisa impilo yesevisi ye-valve core seal.

3. vula futhi uvale ngokushesha. I-valve yebhola yohlobo lwe-V iyi-valve yokushaya e-angular, kusukela ekuvulekeni ngokuphelele kuya ekuvalekeni ngokuphelele. I-Angle 90°, ifakwe i-AT piston pneumatic actuator ingasetshenziswa ezimweni zokusika ngokushesha. Ngemva kokufaka i-electric valve positioner, ingalungiswa ngokuya ngesilinganiso sesiginali se-analog esingu-4-20Ma.

4. ukusebenza kahle kokuvimba. I-spool isebenzisa ukuma kwe-hemispherical okungu-1/4 ngesakhiwo sesihlalo esihlangothini olulodwa. Uma kunezinhlayiya eziqinile endaweni ephakathi nendawo, ukuvaleka kwesikhala ngeke kwenzeke njengama-valve ebhola ajwayelekile ohlobo lwe-O. Akukho sikhala phakathi kwebhola elinobunjwa be-V nesihlalo, esinamandla amakhulu okusika, afanelekela kakhulu ukulawulwa kwezinhlayiya eziqinile eziqukethe i-fiber noma izinhlayiya ezincane eziqinile. Ngaphezu kwalokho, kunezinhlayiya zebhola ezinobunjwa be-V ezine-spool yomhlaba wonke, ezifaneleka kakhulu ezimweni zokucindezela okuphezulu futhi zinganciphisa ngempumelelo ukuguquka kwenhliziyo yebhola lapho kwenziwa umehluko wokucindezela okuphezulu. Isebenzisa ukuvala isihlalo esisodwa noma isakhiwo sokuvala isihlalo esiphindwe kabili. I-valve yebhola enobunjwa be-V ene-seal yesihlalo esiphindwe kabili isetshenziswa kakhulu ekulawuleni ukugeleza okuphakathi okuhlanzekile, kanti indawo enezinhlayiya ingabangela ingozi yokuvala i-cavity ephakathi.

5. I-valve yebhola yohlobo lwe-V iyisakhiwo sebhola esiqinile, isihlalo sigcwele intwasahlobo, futhi singahamba endleleni yokugeleza. Ingavala ngokuzenzakalelayo ukuguguleka kwe-spool, yandise impilo yesevisi. Intwasahlobo inentwasahlobo enezinhlangothi eziyisithupha, intwasahlobo yamagagasi, intwasahlobo yediski, intwasahlobo yokucindezela eyindilinga njalo njalo. Uma i-medium inokungcola okuncane, kuyadingeka ukwengeza izindandatho zokuvala entwasahlobo ukuze uyivikele ekungcoleni. Kuma-valve ebhola lebhola le-V elihlanganisiwe elinezihlalo ezimbili, kusetshenziswa isakhiwo sebhola elintantayo.

6. uma kunezidingo zomlilo kanye nezokulwa nokungaguquguquki, umongo wevalvu wenziwe ngesakhiwo sensimbi esiqinile, isigcwalisi senziwe nge-graphite eguquguqukayo nezinye izinto ezimelana nokushisa okuphezulu, kanti isiqu sevalvu sinehlombe lokuvala. Thatha izinyathelo zokuqhuba nge-electrostatic phakathi komzimba wevalvu, isiqu kanye ne-sphere. Landela isakhiwo esingaguquguquki se-GB/T26479 kanye nezidingo zokulwa nokungaguquguquki kwe-GB/T12237.

7. I-valve yebhola enomumo ongu-V ngokwesakhiwo sokuvala esihlukile senhliziyo yebhola, kunesakhiwo esingavamile esingu-zero, isakhiwo esisodwa esingavamile, isakhiwo esiphindwe kabili esingavamile, isakhiwo esingavamile esithathu. Isakhiwo esivame ukusetshenziswa asijwayelekile. Isakhiwo esingavamile singakhulula ngokushesha i-spool esihlalweni lapho sivulwa, sinciphise ukuguguleka kwendandatho yokuvala futhi sandise impilo yesevisi. Uma ivaliwe, kungakhiqizwa amandla angavamile ukuze kuthuthukiswe umphumela wokuvala.

8. Imodi yokushayela ye-V-type ball valve inohlobo lwesibambo, ukudluliselwa kwegiya lezikelemu, ukuxhumanisa kwe-pneumatic, kagesi, i-hydraulic, i-electro-hydraulic kanye nezinye izindlela zokushayela.

Uxhumano lwe-valve yebhola yohlobo lwe-9.V lunoxhumano lwe-flange kanye noxhumano lwe-clamp ngezindlela ezimbili, lwe-spool yomhlaba wonke, isakhiwo sokuvala izihlalo ezimbili kanye noxhumano lwentambo kanye nokuxhuma amasokhethi, ukuxhunywa kwe-butt kanye nezinye izindlela zokuxhuma.

10. I-valve yebhola ye-ceramic nayo inesakhiwo se-core yebhola enomumo we-V. Iyakwazi ukumelana nokuguguleka okuhle, kodwa futhi ikwazi ukumelana nokugqwala kwe-asidi ne-alkali, ifaneleka kakhulu ekulawulweni kwe-granular media. I-valve yebhola enomumo we-fluorine nayo inesakhiwo se-core yebhola enomumo we-V, esisetshenziselwa ukulawula nokulawula i-media egqwalisayo ye-asidi ne-alkali. Uhla lokusetshenziswa kwe-valve yebhola yohlobo lwe-V lubanzi kakhulu.

✧ Isevisi Yangemva Kokuthengisa

Insizakalo yangemva kokuthengisa yevalvu ye-SDV (i-Shut Down Valve) (i-V port) ibaluleke kakhulu, ngoba insizakalo yangemva kokuthengisa efika ngesikhathi futhi esebenza kahle kuphela engaqinisekisa ukusebenza kwayo kwesikhathi eside nokuzinzile. Okulandelayo okuqukethwe yinsizakalo yangemva kokuthengisa kwamanye amavalvu ebhola antantayo:
1. Ukufakwa kanye nokuqaliswa kokusebenza: Abasebenzi benkonzo yangemva kokuthengisa bazoya endaweni ukuyofaka nokulungisa iphutha le-valve yebhola elintantayo ukuqinisekisa ukusebenza kwayo okuzinzile nokujwayelekile.
2. Ukulungiswa: Gcina njalo ivalvu yebhola elintantayo ukuqinisekisa ukuthi isesimweni esihle kakhulu sokusebenza futhi wehlise izinga lokuhluleka.
3. Ukuxazulula Izinkinga: Uma ivalvu yebhola elintantayo yehluleka, abasebenzi benkonzo yangemva kokuthengisa bazokwenza ukuxazulula izinkinga endaweni ngesikhathi esifushane kakhulu ukuqinisekisa ukusebenza kwayo okuvamile.
4. Ukuvuselelwa nokuthuthukiswa komkhiqizo: Ngenxa yezinto ezintsha kanye nobuchwepheshe obusha obuvela emakethe, abasebenzi benkonzo yangemva kokuthengisa bazoncoma ngokushesha izixazululo zokuvuselela nokuthuthukisa kumakhasimende ukuze banikeze imikhiqizo engcono yama-valve.
5. Ukuqeqeshwa kolwazi: Abasebenzi benkonzo yangemva kokuthengisa bazohlinzeka ngokuqeqeshwa kolwazi lwe-valve kubasebenzisi ukuze bathuthukise izinga lokuphatha nokugcina abasebenzisi besebenzisa ama-valve ebhola antantayo. Ngamafuphi, isevisi yangemva kokuthengisa ye-valve yebhola entantayo kufanele iqinisekiswe kuzo zonke izinhlangothi. Kungale ndlela kuphela lapho ingalethela abasebenzisi ulwazi olungcono nokuphepha kokuthenga.