Isakhiwo se-ball valve sihlukaniswe ngohlobo oluntantayo nohlobo oluhleliwe

I-valve yebhola elungisiwe

Kukhona umsele ngaphansi kwevalvu wokulungisa ivalvu yebhola. Phakathi kukhona ivalvu yebhola. Kukhona isiqu sevalvu ezinhlangothini ezingaphezulu nangaphansi zokulungisa ibhola phakathi. Ngokuvamile, ngaphandle, ivalvu yebhola enephuzu lokusekela idiski ngaphansi kwevalvu yebhola iyivalvu yebhola egxilile.

I-valve yebhola entantayo

Ibhola liyantanta phakathi, futhi akukho ndawo yokusekela ngezansi kukhona ivalvu yebhola elintantayo

Ububanzi obukhulu be-valve yebhola elintantayo ngokuvamile yi-DN250

Ububanzi obukhulu bevalvu yebhola elungisiwe bungaba yi-DN1200

Umehluko omkhulu phakathi kwamavalvu ebhola aqinile nantantayo usekufakweni kwebhola eliphakathi. Ukufakwa kulimaza uphawu ngendlela ehlukile. Uhlobo oluqinile luthuthukisa impilo yesevisi yevalvu yebhola. Ivalvu yebhola ezinzile inokuphila isikhathi eside kunevalvu yebhola entantayo. Ibhola levalvu yebhola yohlobo lwe-ball liyantanta futhi lijikeleze emgodini, okuzokwenza uphawu luntante futhi lucwile. Lapho ivalvu yebhola ijikeleza, amaphuzu okucindezeleka ahlukile. Uma kungekho iphuzu lokusekela, lizolimaza uphawu kuzo zombili izinhlangothi. Uma nje ivalvu yebhola isetshenziswa, izobangela amazinga ahlukene okulahlekelwa yingcindezi. Uma ibhola linephuzu lokusekela, ngeke libangele ukulahlekelwa yingcindezi noma indawo yokulahlekelwa yingcindezi izoba yincane kakhulu, ngakho-ke impilo yevalvu yebhola ezinzile inde kuneyohlobo oluntantayo. , Kungcono ukusebenzisa ivalvu yebhola ezinzile kwezinye izikhathi ngemvamisa yokushintsha ephezulu.

I-valve yebholaukuvala

Ama-valve ebhola afaka ama-valve ebhola anomumo we-V, ama-valve e-half ball angavamile,Amavalvu ebhola le-PVC, njll.

Lawa ama-valve ahlukene achazwe ngokwezikhathi ezahlukene

I-valve yebhola yohlobo lwe-V

Indlela yokugeleza kwevalvu yebhola enomumo we-V iyivalvu yebhola enembobo ye-V esikiwe, okuyivalvu yebhola egxilile

Ububanzi bokusetshenziswa: Imbobo ye-V icutshungulwe ngokukhethekile. Iwukusika okumise okwe-V. Njengommese, umsebenzi wayo ukusika imicu ethile. Kwezinye izinhlayiya eziqinile, izochotshozwa ngqo. Indlela yokucubungula amabhola nayo ihlukile. Ikakhulukazi ezinye izimboni zinendle noma ezinye izinto eziqinile ze-granular, njengalolu hlobo lwe-valve yebhola enomumo we-V luvame ukusetshenziswa.

I-valve yebhola eyingxenye eyingqayizivele

Ivalvu ye-hemispherical engavamile ifana nevalvu yebhola enomumo we-V. Ingaphakathi levalvu liyisigamu kuphela, futhi liyivalvu yebhola eqondile. Isetshenziswa kakhulu ezinhlayiyeni eziqinile. Wonke amavalvu ebhola ye-particle eqondile asebenzisa amavalvu e-hemispherical engavamile. Izitshalo eziningi zesamente nazo ziyayisebenzisa le.

Kokubili ivalvu yebhola enomumo ongu-V kanye nevalvu ye-semi-ball engavamile zihamba ngendlela eyodwa futhi zingageleza ohlangothini olulodwa kuphela, hhayi ukugeleza okuya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini olulodwa, futhi uphawu ngeke luqine uma lushaywa uhlangothi oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini oluya ohlangothini olulodwa, kodwa lugeleza ngendlela eyodwa kuphela. Ukuvalwa kuzoba nzima uma kusetshenziswa ingcindezi.

I-valve yebhola ye-PVC

Izimpawu zikaAmavalvu e-PVCyi-EPDM kuphela (i-ethylene propylene diene monomer), i-FPM (irabha ye-fluorine)

I-valve yebhola eqinile yokuvala

Ukuvalwa okuqinile kunesici esikhethekile

Kukhona isiphethu ngemuva kwesihlalo sevalvu esiqinile, ngoba uma isihlalo sevalvu esiqinile kanye nebhola kuxhunywe ngqo ndawonye, ​​​​ngeke kujikeleze. Lapho isiphethu sixhunywe ngemuva kwesihlalo sevalvu, ibhola lizoba nokuguquguquka ngesikhathi sokujikeleza, ngoba isivalo esiqinile Inkinga okufanele ixazululwe ukuthi ibhola lingasebenza kahle, kodwa ibhola lizovame ukukhuhlwa yi-medium. Uma ezinye izinhlayiya zinamathele esivivinyweni sesihlalo sevalvu, azikwazi ukusetshenziswa. Ngakho-ke, kulula ukuyelula futhi kuncike ebunzimeni bebhola ukuze linwebeke. Uma kuyisicithulo esithambile, uma izinhlayiya zinamathele esivivinyweni, ivalvu izolimala ngqo lapho ivaliwe. Isisicithulo esiqinile sifana nesicithulo sebhola esinomfanekiso ongu-V ngaphambi kokushiya ifektri ene-surfacing S60. Isisicithulo nebhola kuqinile, ngakho-ke ngokuvamile kuyizinto ezinzima. Ngeke kuphuke uma uliklwebha kancane

uphawu lwe-PPL

I-seal nayo inezinto ze-PPL, igama layo yi-PTFE ethuthukisiwe, izinto zokusetshenziswa yi-polytetrafluoroethylene, kodwa i-graphite ethile iyangezwa ukuze iguqulwe ibe ukumelana nokushisa okuphezulu, izinga lokushisa eliphezulu lingafinyelela ku-300 ° (hhayi ukumelana kwesikhathi eside no-300 ° izinga lokushisa eliphezulu), izinga lokushisa elijwayelekile lingu-250 °. Uma udinga isikhathi eside esingu-300 °, kufanele ukhethe i-valve yebhola le-hard seal. Ukumelana nokushisa okuphezulu okuvamile kwe-hard seal kungafinyelela ku-450 °, kanti izinga lokushisa eliphezulu lingafinyelela ku-500 °.