Ukuqonda iiValve zeBellow Seal Globe
Aivalvu yeglobhu yesitywino esingaphantsiyivalvu ekhethekileyo yokuvala eyenzelwe ukuphelisa ukuvuza kwesiqu kwiindawo ezibalulekileyo. Ngokungafaniyo neevalvu zeglobe ezipakishwe ngokwesiko, isebenzisa indibano yentsimbi edityanisiweyo emzimbeni wesiqu kunye nevalvu, okwenza isitywina esingenamoya. Olu yilo lubalulekile ekuphatheni imidiya enobuthi, erhabaxa, okanye ecocekileyo kakhulu apho ukukhutshwa komoya okubalekayo kungamkelekanga.
Izinto ezibalulekileyo zeBellow Seal Globe Valves
1. Ukudibanisa iiBellows
- Izixhobo:Intsimbi engagqwaliyo (SS316/316L), Inconel 625, okanye iHastelloy C276
- Uyilo:Ii-convolutions ezininzi (iileya ezi-8-12) zokuqina komjikelo ongaphezulu kwe-10,000
- Umsebenzi:Iyacinezela/iyandisa ngexesha lokusebenza kwevalvu ngelixa igcina ukuthembeka kwetywina
2. Umzimba weValve
- Uvavanyo loxinzelelo:Iklasi ye-150 ukuya kwiKlasi yama-2500 (ANSI/ASME B16.34)
- Uqhagamshelo Lokugqibela:I-Flanged (RF/RTJ), i-socket weld, okanye i-buttweld
- Uluhlu lweXesha:-196°C ukuya kuma-550°C (ubushushu obuphezulu obufana ne-cryogenic)
3. Isiqu kunye neDiski
- Indibano ye-stem-disc eyenziwe ngobuchule obudibeneyo ukuze ilungelelaniswe
- Ukuqina komphezulu (iStellite 6 coating) ukuze kuthintelwe ukurhawuzelelwa
4. Isitywina sesibini (i-Backup)
- Amakhonkco okupakisha iGraphite angaphantsi kwezantsi njengekhuselekileyo
Isebenza njani iValve yeGlobe yeBellow Seal
Inyathelo 1: Ukuvula iValve
Xa ivili lesandla lijikeleziswa ngokuchasene newotshi:
- Isiqu siyaphakama, siphakamisa idiski esihlalweni
- IiBellows zicinezela nge-axial, zigcina ukuthembeka kwetywina
Inyathelo lesi-2: Ukuvala iValve
Ukujikeleza ngokwewotshi:
- I-Stem forces idiski echasene nesihlalo, imisa ukuhamba kwamanzi
- Iibellows zifikelela kubude bokuqala
Inyathelo lesi-3: Ukuthintela ukuvuza
Isenzo sokutywina kabini:
- Isitywina esiphambili: Indlela yokuvuza kwesiqu se-Bellows block
- Itywina lesibini: Ukupakisha iGraphite (ihambelana ne-API 622)
Iingenelo ngaphezu kweeValve zeGlobe ezisemgangathweni
| Uphawu | I-Bellow Seal Globe Valve | Ivalvu yeGlobe epakishiweyo |
|---|---|---|
| Ukuvuza kwesiqu | Azikho izinto ezikhutshwayo ezibalekayo (ISO 15848-1 TA-Luft) | Ukuvuza ukuya kuthi ga kwi-500 ppm |
| Ulondolozo | Akukho mfuneko yokutshintsha ukupakisha | Ukugcinwa kokupakisha konyaka |
| Izicelo | Iinkqubo zokucoca umoya ezinobungozi, ezicocekileyo kakhulu, nezingenasitshisi | Iinkonzo zamanzi/zomphunga ngokubanzi |
Izicelo zeShishini
1. Ukucubungula iikhemikhali
- Izityalo ze-chlor-alkali (ukugcinwa kwegesi ye-chlorine)
- Imveliso ye-Pharmaceutical API
2. Ioyile kunye neGesi
- Iiyunithi ze-HF alkylation
- Ukudluliselwa kwe-LNG cryogenic (-162°C)
3. Ukuveliswa koMbane
- Ukwahlulwa kwamanzi okuphakelwa kwibhoyila
- Iinkqubo zokudlula kwi-turbine yomphunga
Iikhrayitheriya zokukhetha
1. Uhlobo lweeBellows
- IiBellows ezenziweyo:Uxinzelelo oluphezulu (i-ASME Class 1500+)
- IiBellows eziWelding:Imidiya edlakazelayo (ukugqitywa kwe-electropolished)
2. Iimpawu zokuhamba komoya
- Ipesenti elinganayo xa kuthelekiswa nokuhamba okuthe ngqo kwezicelo zolawulo
3. Iziqinisekiso
- I-NACE MR0175 yenkonzo emuncu
- I-PED 2014/68/EU kwiimarike zaseYurophu
Abavelisi beValve abaphezulu baseTshayina
Abavelisi baseTshayina abafana ne-NSW Valve Umenzi unikezela:
- Uyilo oluhambelana ne-API 602/BS 1873
- Ukonga iindleko nge-30% xa kuthelekiswa neempawu zaseYurophu
- Uvavanyo lwe-bellows oluzenzekelayo (ukufunyanwa kokuvuza kwe-helium)
Iindlela ezilungileyo zoLondolozo
- Ukuhlolwa kwe-bellows rhoqo ngonyaka ukuze kubonwe ukuba kukho imifantu yokudinwa
- Ukuthambisa isiqu ngegrisi yobushushu obuphezulu
- Kuphephe ukurhawuzelelwa kakhulu (ubuninzi be-50 Nm kwiivalvu ze-DN50)
Ixesha lokuthumela: Epreli-10-2025