I-Velve yeGlobe yeMveliso ePhakamileyo ePhakamileyo yoMzi-mveliso oHlala kwiSinye ePhakamileyo yoMthengisi weFektri waseTshayina
Yintoni iValve yeGlobe enesitulo esinye?
Iivalvu zeglobe ziivalvu zokuvala ezihamba ngomgca ezisetyenziselwa ukuqala, ukumisa okanye ukulawula ukuhamba kusetyenziswa ilungu lokuvala elibizwa ngokuba yidiski. Isihlalo sevalvu yeglobe siphakathi kwaye sihambelana nombhobho, kwaye ukuvulwa kwesihlalo kuvalwa ngediski okanye iplagi. Idiski yevalvu yeglobe ingavala ngokupheleleyo indlela yokuhamba okanye ingasuswa ngokupheleleyo. Ukuvulwa kwesihlalo kutshintsha ngokulinganayo ngokuhamba kwediski, nto leyo efanelekileyo kwimisebenzi ebandakanya ukulawulwa kokuhamba. Iivalvu zeglobe zifanelekile kwaye zisetyenziswa kakhulu ukulawula okanye ukumisa ukuhamba kolwelo okanye igesi kumbhobho ukuze kuthintelwe kwaye kulawulwe ukuhamba kolwelo kwaye zihlala zisetyenziswa kwiipayipi ezincinci.
I-Single Seat Globe Valve yenye yezona ziveliso zidumileyo zeevalvu zeglobe, zenkqubo ye-US kunye ne-API. Ububanzi bangaphakathi, izixhobo, ubuso ngobuso, ubukhulu bodonga, ubushushu boxinzelelo, zichazwa yi-ASME B16.34.
Ukongeza, kuxhomekeke kuyilo lwesihlalo kunye nediski, umthwalo wezihlalo zeSingle Seated Globe Valve unokulawulwa ngokufanelekileyo ngesiqu esikrufulwe. Umthamo wokutywina weSingle Seated Globe Valve uphezulu kakhulu. Zingasetyenziselwa umsebenzi wokungasebenzi. Ngenxa yomgama omfutshane wokuhamba wediski phakathi kweendawo ezivulekileyo nezivaliweyo, iSingle Seated Globe Valve ifanelekile ukuba ivalvu kufuneka ivulwe kwaye ivalwe rhoqo. Ke ngoko, iivalvu zeglobe zingasetyenziselwa imisebenzi eyahlukeneyo.
Ivalvu yeGlobe eHlala yodwa ingasetyenziselwa iinjongo zokubhoboza. Iivalvu ezininzi ezihlala zodwa zisebenzisa ulwakhiwo lwekheji okanye uhlobo lwe-retainer ukugcina iringi yesihlalo, ukubonelela ngesikhokelo seplagi yevalvu, kunye nokubonelela ngeendlela zokuseka iimpawu ezithile zokuhamba kwevalvu. Ingatshintshwa ngokulula ngokutshintsha iindawo zokusika ukutshintsha uphawu lokuhamba okanye ukubonelela ngomthamo ophantsi.ukuhamba, ukunciphisa ingxolo, okanye ukunciphisa okanye ukuphelisa i-cavitation.
Iipateni zomzimba ze-ASME Globe Valve, kukho iipateni ezintathu eziphambili zomzimba okanye uyilo lweevalvu zeGlobe, ezizezi:
- 1). Ipateni eQhelekileyo (ekwaziwa ngokuba yiTee Pattern okanye iT – Pattern okanye iZ – Pattern)
- 2) .Iphethini ye-Angle
- 3). Ipateni ye-Oblique (ekwaziwa ngokuba yiWye Pattern okanye iY – Pattern)
Eyona nto iphambili kwiValve yeGlobe eHlaliswe yodwa
- 1) .Izakhono ezilungileyo zokutywina
- 2). Umgama omfutshane wokuhamba kwediski (stroke) phakathi kweendawo ezivulekileyo nezivaliweyo,Iivalvu zeglobhu ze-ASMEzilungele ukuba ivalvu kufuneka ivulwe kwaye ivalwe rhoqo;
- 3).Ivalvu yeglobhu ye-ASME ingasetyenziswa njengevalvu yokujonga ukumisa ngokutshintsha uyilo kancinci.
- 4).TNazi iindlela ezahlukeneyo zobuchule ezifumanekayo kwiindlela ze-tee, Wye, kunye ne-angle body.
Iinkcukacha zobugcisa zeValve yeGlobe eHlaliswe yodwa
| Uyilo kunye noMveliso | BS1873/ASME B16.34 |
| I-NPS | 2"-30" |
| Uvavanyo loxinzelelo (Udidi) | Iklasi150-Iklasi4500 |
| Ubuso ngobuso | I-ANSI B16.10 |
| Ubukhulu beFlange | I-AMSE B16.5 |
| Ubukhulu bokuwelda kwempundu | I-ASME B16.25 |
| Uvavanyo lobushushu boxinzelelo | I-ASME B16.34 |
| Uvavanyo kunye nokuhlolwa | I-API598 |
| Bdoy | Intsimbi yekhabhoni, Intsimbi engatyiwayo, Intsimbi ye-alloy |
| Isihlalo | intsimbi engatyiwayo, intsimbi ye-alloy, i-Stellite coating. |
| Umsebenzi | ivili lesandla, igiya lesandla, i-actuator yombane, i-actuator yomoya |
| Ipateni yomzimba | Ipateni eqhelekileyo (iphethini ka-T okanye uhlobo luka-Z), ipateni ye-Angle, ipateni ka-Y |
Iimveliso zibonisa: Ivalvu yeGlobe eHlaliswe yodwa
Ukusetyenziswa kweValve yeGlobe eHlaliswe yodwa
Ivalvu yeGlobe ye-ASMEIsetyenziswa kakhulu kwiinkonzo ezahlukeneyo; zombini iinkonzo zoxinzelelo oluphantsi kunye nolwelo oluphezulu. Iindlela eziqhelekileyo zokusetyenziswa kweevalvu zeglobe zezi:
- 1). Yenzelwe imibhobho ekhutshwa rhoqo, okanye ukuthomalalisa ulwelo kunye negesi ephakathi
- 2). Ulwelo: Amanzi, umphunga, umoya, ipetroliyam ekrwada kunye neemveliso zepetroliyam, igesi yendalo, igesi econdensate, izisombululo zobuchwepheshe, ioksijini, iigesi ezingamanzi nezingenalo ugonyamelo
- 3).Iinkqubo zamanzi okupholisa ezifuna ukulawulwa kokuhamba kwamanzi.
- 4).Inkqubo yeoyile yepetroli efuna ukuvaleka.
- 5).Iinkqubo zokulawula ivalvu.
