Isixhobo sokutywina somgangatho osebenzayo wobushushu obuphakathi uthelekiso loxinzelelo lwevalvu yetafile kufuneka luhambelane nemigaqo eli-16 kunye nemiba efuna ukuhoywa.
Imathiriyeli yokutywina yomphezulu wevalvu esebenzayo itheyibhile yokuthelekisa iqondo lobushushu eliphakathi
impahla
Ubushushu benkonzo efanelekileyo
Izalathiso zokusetyenziswa
Butyl irabha Buna-N
- 23 ℃ ~ 82 ℃
Mfutshane -23℃ ~ 120℃
I-rubber ye-butadiene ine-self-malleability elungileyo, ukuxhathisa ukunxiba kunye neempawu zokumelana ne-hydrocarbon, njengento eqhelekileyo ingasetyenziselwa emanzini, i-vacuum, i-asidi, ityuwa, i-alkali, i-lipid, i-oyile, ibhotolo, i-oyile ye-hydraulic, i-glycol kunye nezinye imidiya, kodwa ayikwazi. zisetyenziswe kwi **, ketone, nitrate kunye neendawo ezinefluorinated hydrocarbon.
YiBing irabha
EPDM
- 40 ℃ ~ 135 ℃
Mfutshane -50℃ ~ 170℃
Irabha ye-ethylene propylene i-rubber yendalo yonke eyenziwe kakuhle, ingasetyenziselwa kwiinkqubo zamanzi ashushu, iziselo, iimveliso zobisi, i-methyl ketone, utywala, i-nitrate kunye ne-glycerol kunye neminye imithombo yeendaba, kodwa ayinakusetyenziswa kwi-oyile esekelwe kwi-hydrocarbon, i-inorganic matter okanye i-solvent.
I-Fluoroprene Neoprene
- 29 ℃ ~ 135 ℃
Mfutshane -35℃ ~ 113℃
I-rubber ye-Fluoroprene ingasetyenziselwa kwi-asidi, i-oyile, i-fat, i-solvents yebhotela kunye neminye imithombo yeendaba, inokumelana kakuhle ne-ammonia ye-anhydrous kunye nokusebenza kotywala.
Irabha eneFluorinated
Viton
- 29 ℃ ~ 205 ℃
Irabha ene-Fluorinated kukumelana kakuhle ne-oyile esekwe kwi-hydrocarbon, igesi yeoli kunye nezinye iimveliso zepetroleum zerubha ene-fluorinated, ilungele amanzi, i-oyile, umoya, iasidi kunye nezinye imidiya, kodwa ayinakusetyenziselwa umphunga, ngaphezulu kwe-82 ℃ amanzi ashushu okanye agxininiswe. inkqubo yealkali.
Irabha yeSilicone
Silicone
- 40 ℃ ~ 180 ℃
Ukumelana nerubha ye-silicone kubushushu obuphezulu, ubushushu obuphantsi, ukuzinza kweekhemikhali, kusetyenziswa ngokubanzi kwi-asidi eqinile, i-alkali ebuthathaka kunye namashishini okutya.
PTFE PTFE
- 10 ℃ ~ 200 ℃
I-Polytetrafluoroethylene ineempawu ezizinzileyo zeekhemikhali, i-surface egqwesileyo engekho-viscosity, i-lubricity efanelekileyo kunye ne-anti-aging properties, isetyenziswa ngokubanzi kwi-acids eqinile, iziseko ezibuthathaka, i-oxidants eyomeleleyo kunye nezinye izinto ezidliwayo.
Uvavanyo loxinzelelo lwe-valve luya kuhambelana nemigaqo kunye nemibandela efuna ingqalelo kwinkqubo yokuvelisa i-valve ye-16 yinto entsonkothileyo kwaye elula, imveliso eqhelekileyo yeevalvu ezifana nevalve yesango, ivalve yebhola, ivalve yeglowubhu, ivalve yebhabhathane, ivalve yokukhangela, umjikelo wemveliso ngokubanzi. ngeentsuku ezintathu, iivalvu ezifanelekileyo zokwenziwa kufuneka zihambe ngeendlela ezahlukeneyo zokuvavanya ukusebenza, kubandakanywa * * olubalulekileyo uvavanyo kukuvavanya. Uvavanyo loxinzelelo kukuvavanya ukuba ixabiso loxinzelelo lwevalve linokuhlangabezana neemfuno zemimiselo yemveliso, uvavanyo loxinzelelo lwevalvu jikelele kufuneka luhambelane nale migaqo ilandelayo kunye nemicimbi efuna ukuhoywa:
Ukuveliswa kweevalve yinkqubo enzima kwaye elula. Umjikelo wemveliso yeevalvu eziqhelekileyo ezifana neevalvu zesango, iivalve zebhola, iivalve zeglowubhu, iivalve zebhabhathane kunye neevalvu zokutshekisha zidla ngokuba ziintsuku ezintathu. Ukuveliswa kwee-valve kufuneka kuhlolwe ngeemvavanyo ezahlukeneyo zokusebenza, phakathi kwazo olona vavanyo lubalulekileyo luvavanyo loxinzelelo. Uvavanyo loxinzelelo kukuvavanya ukuba ixabiso loxinzelelo lwevalve linokuhlangabezana neemfuno zemimiselo yemveliso, uvavanyo loxinzelelo lwevalvu jikelele kufuneka luhambelane nale migaqo ilandelayo kunye nemicimbi efuna ukuhoywa:
(1) Phantsi kweemeko eziqhelekileyo, isivalo asifakwanga kuvavanyo lwamandla, kodwa umzimba wevalve kunye nesigqubuthelo sevalvu emva kokulungiswa okanye ukonakala komhlwa kufuneka kuhlolwe amandla. Kwivalve yokhuseleko, uxinzelelo oluqhubekayo kunye noxinzelelo lokubuya kunye nezinye iimvavanyo kufuneka zihambelane neenkcukacha kunye nemimiselo yeenkqubo ezifanelekileyo.
(2) Ukuqina kunye nokuqina kwevalve kufuneka kuhlolwe. I-valve ye-low-pressure spot check 20%, efana ne-inqualified kufuneka ibe yi-100% yokuhlolwa; Iivalve eziphakathi kunye noxinzelelo oluphezulu kufuneka zihlolwe i-100%.
(3) Ngethuba lovavanyo, i-valve kufuneka ifakwe kwindlela yokuhlola lula.
(4) Kwiivalvu ngendlela yoqhagamshelo oludityanisiweyo, isitywina seconical okanye i-O-ring seal ingasetyenziselwa uvavanyo loxinzelelo xa uvavanyo loxinzelelo ngepleyiti eyimfama lungenzeki.
(5) uvavanyo lwehydraulic luya kuzama ukuphelisa umoya wevalve.
(6) Uxinzelelo kufuneka lwandiswe ngokuthe ngcembe ngexesha lovavanyo, kwaye ukunyanzeliswa ngokukhawuleza kunye nokukhawuleza akuvumelekanga.
(7) Uvavanyo lwamandla kunye nobude bovavanyo lokutywinwa ngokuqhelekileyo yimizuzu emi-2-3, iivalvu ezibalulekileyo nezikhethekileyo kufuneka zihlale imizuzu emi-5. Ixesha lovavanyo lwevalve yedayamitha encinci linokuba lifutshane ngokuhambelanayo, ixesha lovavanyo lwevalvu yedayamitha enkulu linokuba lide ngokulinganayo. Ngexesha lovavanyo, ukuba uyathandabuza, ixesha lokuvavanya linokwandiswa. Ngexesha lovavanyo lwamandla, musa ukuvumela umzimba kunye nokugubungela ukubila okanye ukuvuza. Uvavanyo lokutywina, ivalve jikelele ikanye kuphela, ivalve yokhuseleko, ivalve yoxinzelelo oluphezulu kunye nezinye iivalvu ezikrwada kufuneka zenziwe kabini. Ngexesha lovavanyo, uxinzelelo oluphantsi, i-valve enkulu engabalulekanga engabalulekanga kunye ne-valve enezibonelelo ezivumela ukuvuza zivumelekile ukuba zibe ne-trace phenomenon yokuvuza; Ngenxa yeemfuno ezahlukeneyo zeevalve zendalo yonke, iivalve zesikhululo samandla, iivalve zaseMarine kunye nezinye iivalve, iimfuno zokuvuza kufuneka zenziwe ngokuhambelana nemigaqo efanelekileyo.
(8) Ivalve ye-throttle ayivalwanga kuvavanyo lokutywinwa, kodwa kufuneka ibe luvavanyo lwamandla kunye nokupakishwa kunye novavanyo lokutywinwa kwe-gasket.
(9) Kuvavanyo loxinzelelo, amandla okuvala ivalve avumela kuphela amandla aqhelekileyo omzimba omntu ukuba avale; Akuvumelekanga ukusebenzisa amandla kunye ne-levers okanye ezinye izixhobo (ngaphandle kwee-wrenches ze-torque). Xa ububanzi be-handwheel bungaphezulu kwe-320mm, abantu ababini bavumelekile ukuba bavale kunye.
(10) Ivalve enetywina eliphezulu kufuneka ikhutshwe kwindawo ekupakishwa kuyo kuvavanyo lokutywinwa. Emva kokuba itywina eliphezulu livaliwe, khangela ukuba kukho ukuvuza. Xa uvavanya ngegesi, gcwalisa ibhokisi yokuhlohla ngamanzi ukuze ihlolwe. Musa ukuvumela itywina eliphezulu ukuba libe kwindawo ekufutshane xa upakisha uvavanyo lokuqina.
(11) apho isivalo sinesixhobo sokuqhuba, xa sivavanya ukutywinwa kwayo, isixhobo sokuqhuba kufuneka sisetyenziswe ukuvala isivalo kuvavanyo lokutywina. Isixhobo sokuqhuba ngesandla, kufuneka sisetyenziswe kwakhona ukuvala uvavanyo lwevalve yesitywina.
(12) Uvavanyo lwamandla kunye novavanyo lokutywina olufakwe kwivalve enkulu yokudlula ivelufa, kumandla evalve engundoqo kunye novavanyo lokutywina; Xa ukuvalwa kwevalve engundoqo kuvulwa, kufuneka kwakhona kuvulwe ngokufanelekileyo.
(13) Ngexesha lovavanyo lwamandla evalve yentsimbi etyhidiweyo, ihamile yobhedu kufuneka isetyenziswe ukucofa umzimba wesivalo kunye nesivalo sevalve ukujonga ukuba akukho kuvuza na.
(14) Xa isivalo sivavanywa, umgangatho wokutywina wevalve awuvumelekanga ukuba ugalelwe i-oyile ngaphandle kokuba umphezulu wokutywina wevalve yeplagi uvumelekile ukuba ugalelwe i-oyile.
(15) Ngexesha lovavanyo loxinzelelo lwevalve, uxinzelelo lweplate eyimfama kwivalve akufanele lube lukhulu kakhulu, ukwenzela ukuba ugweme ukuguqulwa kwevalve kwaye kuchaphazele umphumo wovavanyo (ukuba i-valve yentsimbi etyhidiweyo icinezelwe kakhulu, iya konakaliswa).
(16) Emva kokuba uvavanyo loxinzelelo lwevalve lugqityiwe, amanzi kwivalve kufuneka asuswe ngexesha kwaye acinywe, kwaye irekhodi yovavanyo kufuneka yenziwe.
Ixesha lokuposa: Aug-25-2022
