Ivalve yeplagi yivalve ejikelezayo ekwimilo yelungu lokuvala okanye iplunger. Ngokujikeleza i-90 degrees, i-port yeshaneli kwiplagi yevalve iyafana okanye yahlulwe kwi-channel port kumzimba wevalve, ukuze kuqatshelwe ukuvula okanye ukuvala ivalve.
Ubume beplagi ye-valve yeplagi ingaba yi-cylindrical okanye i-conical. Kwiiplagi ze-valve ze-cylindrical, iipaseji zihlala zixande; kwiiplagi zevalve yeconical, iipaseji zitrapezoidal. Ezi zimilo zenza ukwakheka kwevalve yeplagi ukukhanya, kodwa kwangaxeshanye, ikwavelisa ilahleko ethile. Iivalve zeplagi zifaneleke ngakumbi ukuvala kunye nokudibanisa imidiya kunye nokuphambuka, kodwa kuxhomekeke kubume besicelo kunye nokumelana nokukhukuliseka kwendawo yokutywina, ingasetyenziselwa ukubethelwa. Jika iplagi ngokwewotshi ukwenza igroove ihambelane nombhobho ukuze uvule, kwaye ujike iplagi iplagi ngama-90 degrees counterclockwise ukwenza igroove perpendicular kumbhobho ukuba uvale.
Iindidi zeevalvu zeplagi zahlulwe ikakhulu kwezi ndidi zilandelayo:
1. Ivalve yeplagi eqinisiweyo
Iivalvu zeplagi zohlobo oluqinileyo zidla ngokusetyenziswa kwimibhobho yoxinzelelo oluphantsi oluthe ngqo. Ukusebenza kokutywinwa kuxhomekeke ngokupheleleyo kukulungelelana phakathi kweplagi kunye nomzimba weplagi. Ukunyanzeliswa kwendawo yokutywina kufezekiswa ngokuqinisa i-nut ephantsi. Isetyenziswa ngokubanzi kwi-PN≤0.6Mpa.
2. Ivalve yeplagi yokupakisha
Ivalve yeplagi epakishweyo kukuphumeza iplagi kunye neplagi yokutywinwa komzimba ngokucinezela ukupakisha. Ngenxa yokupakisha, ukusebenza kokutywinwa kungcono. Ngokuqhelekileyo olu hlobo lwevalve yeplagi lunedlala lokupakisha, kwaye iplagi ayifuni ukuba ivele kumzimba wevalve, ngaloo ndlela inciphisa indlela yokuvuza yendawo yokusebenza. Olu hlobo lwevalve yeplagi lusetyenziswa ngokubanzi kuxinzelelo lwe-PN≤1Mpa.
3. Ivalve yeeplagi zokuzitywina
Ivalve yeplagi yokuzitywina ibona itywina loxinzelelo phakathi kweplagi kunye nomzimba weplagi ngoxinzelelo lwesixhobo esiphakathi ngokwaso. Isiphelo esincinci seplagi siphumela phezulu ngaphandle komzimba, kwaye i-medium ingena kwisiphelo esikhulu seplagi ngomngxuma omncinci kwindawo yokungena, kwaye iplagi icinezelwe phezulu. Esi sakhiwo sisetyenziswa ngokubanzi kwimidiya yomoya.
4. Ivalve yeplagi etywinwe ngeoyile
Kwiminyaka yakutshanje, uluhlu lwezicelo zeeplagi zeeplagi luye lwandiswa ngokuqhubekayo, kwaye i-oil-sealed plug valves kunye ne-lubrication enyanzeliswayo ibonakala. Ngenxa yokunyanzeliswa kwe-lubrication, ifilimu yeoli yenziwa phakathi kwendawo yokutywina yeplagi kunye nomzimba weplagi. Ngale ndlela, ukusebenza kokutywinwa kungcono, ukuvula kunye nokuvala kukugcina umsebenzi, kwaye indawo yokutywina ithintelwe ukuba yonakaliswe. Kwezinye iimeko, ngenxa yezixhobo ezahlukeneyo kunye notshintsho kwi-cross-section, ukwandiswa okuhlukeneyo kuya kwenzeka ngokuqinisekileyo, okuya kubangela ukuguqulwa okuthile. Kufuneka kuqatshelwe ukuba xa amasango amabini ekhululekile ukwandisa kunye nekhontrakthi, intwasahlobo kufuneka ikhulise kwaye ivumelane nayo.
Ixesha lokuposa: Dec-22-2022