Iingenelo zevalvu yesango:
(1) Ukumelana nolwelo oluncinci Ngenxa yokuba umjelo wangaphakathi we-valve yesango uthe tye, i-medium ayitshintshi indlela ehamba ngayo xa idlula kwi-valve yesango, ngoko ke ukumelana nolwelo kuncinci.
(2) I-torque yokuvula nokuvala incinci, kwaye ukuvulwa nokuvala konga abasebenzi. Ngenxa yokuba indlela yokuhamba kwesango ihambelana ngqo nendlela yokuhamba okuphakathi xa ivalvu yesango ivulwa kwaye ivaliwe, ukuvulwa nokuvalwa kwevalvu yesango konga abasebenzi ngakumbi xa kuthelekiswa nevalvu yokumisa.
(3) Icala lokuhamba kwesixhobo asithintelwanga, kwaye isixhobo singahamba nangaliphi na icala ukusuka kumacala omabini evalvu yesango ngaphandle kokuphazamisa ukuhamba kwaso nangaphandle kokunciphisa uxinzelelo, kwaye injongo yokusetyenziswa ingafezekiswa. Ifanelekile ngakumbi kwiipayipi apho icala lokuhamba kwaso linokutshintsha khona.
(4) Ubude besakhiwo bufutshane kuba isango levalvu yesango libekwe ngokuthe nkqo emzimbeni wevalvu, kwaye idiski yevalvu yevalvu yokumisa ibekwe ngokuthe tye emzimbeni wevalvu, ngoko ke ubude besakhiwo bufutshane kunobo bevalvu yokumisa.
(5) Ngokusebenza kakuhle kokuvala, umphezulu wokuvala awukhukuliseki kangako xa uvuliwe ngokupheleleyo.
(6) Xa ivuliwe ngokupheleleyo, ukuguguleka komphezulu wokutywina yi-medium esebenzayo kuncinci kunokwe-stop valve.
(7) Imilo yomzimba ilula kakhulu, inkqubo yokubumba ilungile, kwaye uluhlu lokusetyenziswa lubanzi.
Iingxaki zevalvu yesango:
(1) Umphezulu wokuvala kulula ukuwulimaza amatywina amabini adibana nesihlalo sevalvu ngexesha lokuvulwa nokuvalwa, kwaye kukho ukungqubana phakathi kwamatywina amabini, okulula ukuwonakalisa, okuchaphazela ukusebenza kunye nobomi benkonzo yesitywina, kwaye kunzima ukuyigcina.
(2) Ixesha lokuvula nokuvala lide, kwaye ukuphakama kukhulu. Ngenxa yokuba ivalvu yesango kufuneka ivulwe ngokupheleleyo okanye ivalwe ngokupheleleyo xa kuvulwa naxa kuvalwa, i-gate stroke inkulu, kwaye kufuneka indawo ethile yokuvula, kwaye ubungakanani bubonke buphezulu, kwaye indawo yokufaka inkulu.
(3) Iivalvu zesango ezinesakhiwo esintsonkothileyo zihlala zineendawo ezimbini zokutywina, nto leyo eyonyusa ukucutshungulwa, ukugaywa kunye nokugcinwa. Kukho iindawo ezinzima ngakumbi, ukwenziwa kunye nokugcinwa kunzima ngakumbi, kwaye ixabiso liphezulu kuneleevalvu zeglobe.
Ububanzi bevalvu yesango buyancipha:
Ukuba ububanzi bendlela edlulayo emzimbeni wevalvu bahlukile (ngokufuthi ububanzi besihlalo sevalvu buncinci kunobubanzi obukuqhagamshelo lweflange), oku kubizwa ngokuba yi-diameter shrinkage.
Ukuncipha kobubanzi kunokunciphisa ubungakanani beendawo, kunciphise amandla afunekayo ekuvuleni nasekuvaleni, kwaye kwandise uluhlu lokusetyenziswa kweendawo. Kodwa emva kokuba ububanzi bunciphile. Ukulahleka kokumelana nolwelo kuyanda.
Phantsi kweemeko ezithile zokusebenza kumasebe athile (njengemibhobho yeoyile kwicandelo lepetroliyam), iivalvu ezineedayamitha ezincitshisiweyo azivumelekanga. Kwelinye icala, kukunciphisa ukulahleka kokuxhathisa kombhobho, kwaye kwelinye icala, kukuphepha imiqobo ekucoceni ngoomatshini kombhobho emva kokuncipha kobubanzi.
Ukufakelwa kunye nokugcinwa kwevalvu yesango kufuneka kuthathelwe ingqalelo kule micimbi ilandelayo:
1. Amavili esandla, izibambo kunye neendlela zokudlulisela azivumelekanga ukuba zisetyenziswe ekuphakamiseni, kwaye ukungqubana akuvumelekanga ngokungqongqo.
2. Ivalvu yesango eliphindwe kabini kufuneka ifakwe ngokuthe nkqo (oko kukuthi, isiqu sevalvu sikwindawo ethe nkqo kwaye ivili lesandla liphezulu).
3. Ivalvu yesango enevalvu yokudlula kufuneka ivulwe ngaphambi kokuba ivulwe (ukulinganisela umahluko woxinzelelo phakathi kwendawo yokungena kunye nendawo yokuphuma kunye nokunciphisa amandla okuvula).
4. Ivalvu yesango enendlela yokudlulisa kufuneka ifakwe ngokwemiyalelo yemveliso.
5. Ukuba ivalvu ivulwa kwaye ivalwa rhoqo, thambisa ubuncinci kube kanye ngenyanga.
INortech ngomnye wabavelisi beevalvu zoshishino abaphambili eTshayina abanesiqinisekiso somgangatho se-ISO9001.
Ixesha lokuthumela: Agasti-16-2021