Ivalve yokutywina umphezulu indlela yonyango yokuvuza

Ivalve yokutywina umphezulu indlela yonyango yokuvuza

Screw iibholithi ngokulinganayo kunye ne-symmetrically. Ukuba kuyimfuneko, sebenzisa i-torque wrench. Ukulayisha kwangaphambili kufuneka kuhlangabezane neemfuno kwaye kungabi kukhulu kakhulu okanye kuncinci. Kufuneka kubekho imvume ethile yokulayisha kwangaphambili kwindawo edibeneyo yeflange kunye nentambo. Indibano ye-gasket kufuneka ihambelane neziko kwaye amandla kufuneka afane. I-gasket lap kunye ne-double gasket ayivumelekanga.
Unobangela:
I-1, ukutywina umphezulu wokugaya ukungalingani, awukwazi ukwenza umgca osondeleyo.
2. Ukudibanisa phakathi kwesiqu kunye nenxalenye yokuvala kunqunyanyiswa, kungekhona ngokuthe ngqo okanye kunxitywe.
I-3, i-valve stem egoba okanye indibano ayichanekanga, ukwenzela ukuba inxalenye yokuvala igxininiswe okanye ingabikho phakathi.
4. Ukukhetha okungafanelekanga kokutywinwa komgangatho wezinto ezibonakalayo okanye ukungakhethi kwevalve ngokwemiqathango yokusebenza.
Iindlela zokuthintela kunye nokuphelisa:
1. Khetha ngokuchanekileyo izinto eziphathekayo kunye nohlobo lwe-gasket yokubetha ngokweemeko zokusebenza.
2, ukulungiswa ngononophelo, ukusebenza kakuhle.
I-3, kufuneka ilungelelanise kwaye i-symmetrically screw ibholithi, ukuba kuyimfuneko, kufuneka isebenzise i-wrench ye-torque, i-preload kufuneka ihlangabezane neemfuno, ingabi nkulu kakhulu okanye incinci. Kufuneka kubekho imvume ethile yokulayisha kwangaphambili kwindawo edibeneyo yeflange kunye nentambo.
I-4, indibano ye-gasket kufuneka ihambelane, amandla afanayo, i-gasket lap kunye nokusetyenziswa kwe-double gasket ayivunyelwe.
I-5, i-static yokutywinwa komphezulu womphezulu, ukusetyenzwa komonakalo, umgangatho wokucubungula awuphezulu, kufuneka ulungiswe, ukugaya, ukuhlolwa kombala, ukwenza umphezulu wokutywina omileyo uhlangabezane neemfuno ezifanelekileyo.
6. Xa ufaka i-gasket, ingqalelo kufuneka ihlawulwe ekucoceni, indawo yokutywina kufuneka i-kerosene icace, kwaye i-gasket ayifanele iwe phantsi.
Ngaba ivalve idinga ukufakela imigaqo yevalve yokudlula kunye noSeto? Ngamanye amaxesha sibona iivalve ezinkulu ngokwentelekiso kweminye imibhobho, kwaye kuhlala kukho iivalve zokudlula ezifakiweyo. Kutheni kunje? Ngowuphi owona msebenzi wayo ophambili? Kufuneka ifakwe phantsi kwaziphi iimeko? Ithini i-diameter yevalve ye-bypass yesixhobo esihambelanayo? Enyanisweni, i-valve ye-bypass ibekwe kumbhobho, kwaye indima yayo inokwahlulwa ibe ngamanqaku amabini ngokubanzi: enye idlala indima yokukhusela (uxinzelelo lokulinganisela kuzo zombini iziphelo), enye i-standby standby!
Ngamanye amaxesha sibona iivalve ezinkulu ngokwentelekiso kweminye imibhobho, kwaye kuhlala kukho iivalve zokudlula ezifakiweyo. Kutheni kunje? Ngowuphi owona msebenzi wayo ophambili? Kufuneka ifakwe phantsi kwaziphi iimeko? Ithini i-diameter yevalve ye-bypass yezixhobo ezihambelanayo?
Enyanisweni, i-valve ye-bypass ibekwe kumbhobho, kwaye indima yayo inokwahlulwa ibe ngamanqaku amabini ngokubanzi: enye idlala indima yokukhusela (uxinzelelo lokulinganisela kuzo zombini iziphelo), enye i-standby standby!
Okokuqala, umphumo wokukhusela, unokuthiwa ngumlinganiselo wokukhusela we-valve engundoqo, ukukhusela i-valve ngaphambi nangemva kokuba umehluko woxinzelelo mkhulu kakhulu, kwaye ubangele ukuchasana okuvulekileyo, i-valve ayilungile ukuyivula, ngakumbi kwezinye. umgangatho omkhulu okanye umbhobho woxinzelelo oluphezulu. Phambi kokuvula umbhobho woxinzelelo oluphezulu ngokusebenzisa isiqabu soxinzelelo lwevalve ye-bypass, ukuze uthintele uxinzelelo oluphezulu ngequbuliso, ukwakheka kwempembelelo kumbhobho ongaphantsi kwevalve. Okanye umahluko woxinzelelo phakathi kweziphelo ezimbini zevalve mkhulu kakhulu, itorque yokuvula inkulu kakhulu, ukuze ugweme umonakalo wetorque kwivalve, ukunqanda uxinzelelo loxinzelelo ngaphambi kokuvula ivalve.
Eyesibini, indima engxamisekileyo, njengombhobho wokulinda wokusebenzisa, inzuzo enkulu kukuba xa ukusilela kwevalve ephambili, okanye imfuno yokugcinwa kunye nokulungiswa ngokutsha, unokuvula ukujikeleza kwevalve ye-bypass, kwaye ayichaphazeli imveliso eqhelekileyo.
Ukuba ivalve kufuneka ifakwe ngeemfuno ezikhethekileyo zevalve kunye noSeto*yereferensi)
2.5mpa ibakala, DN400 okanye ngaphezulu; 4.0mpa ibakala, DN250 okanye ngaphezulu; 6.4mpa ibakala, DN200 okanye ngaphezulu; 10MPa ibakala, DN150 okanye ngaphezulu;
Ivalve ye-DN100~DN200, umbhobho wokudlula kunye nevalve yokudlula ye-DN20; Ivalve ye-DN250~DN600, umbhobho wokudlula kunye nevalve yokudlula ye-DN25; Kwiivalvu ezingaphezulu kwe-DN600, umbhobho wokudlula kunye nevalve yokudlula yi-DN40.