Izinto eziluncedo kunye nokungalunganga kokukhethwa kwevalve yesango

Phakathi kweentlobo ezahlukeneyo zevalve,iivalve zesangozezona zisetyenziswa kakhulu.Ivalve yesango ibhekisa kwivalve enepleyiti yesango ehamba ngokuthe nkqo kwi-axis yetshaneli.Isetyenziselwa ikakhulu ukunqumla i-medium kumbhobho, oko kukuthi, ivule ngokupheleleyo okanye ivalwe ngokupheleleyo.Ngokuqhelekileyo, iivalve zesango azikwazi ukusetyenziswa njenge-throttling.Ingasetyenziselwa ubushushu obuphezulu kunye noxinzelelo oluphezulu, kwaye ingasetyenziselwa iindidi ezahlukeneyo zeendaba.Iivalvu zesango azisetyenziswa ngokubanzi kwimibhobho ehambisa udaka kunye nolwelo lwe-viscous.

Ivalve yesango inezi ncedo zilandelayo:

1. Ukuxhathisa ulwelo oluncinane;

2. I-torque efunekayo ukuvula nokuvala incinci;

3. Ingasetyenziswa kumbhobho womnatha weringi apho i-medium ihamba ngeendlela ezimbini, oko kukuthi, indlela yokuhamba ye-medium ayithintelwanga;

4. Xa ivuleke ngokupheleleyo, ukhukuliseko lomphezulu wokutywina ngophakathi osebenzayo luncinane kunolo lwevalve yeglowubhu;

5. Ubume bulula kwaye inkqubo yokuvelisa ingcono;

6. Ubude besakhiwo buncinci.

Ngenxa yokuba iivalve zesango zineenzuzo ezininzi, zisetyenziswa ngokubanzi.Ngesiqhelo, umbhobho onobukhulu obuqhelekileyo ≥ DN50 isetyenziswa njengesixhobo sokunqumla okuphakathi, kwaye nakweminye imibhobho yobubanzi obuncinci (efana ne-DN15~DN40), ezinye iivalvu zesango zisagciniwe.

Iivalvu zesango nazo zinento engalunganga, ngakumbi:

1. Imilinganiselo yonke kunye nobude bokuvula bukhulu, kwaye indawo yokufakela efunekayo nayo inkulu.

2. Ngethuba lokuvula kunye nenkqubo yokuvala, kukho ukungqubuzana phakathi kweendawo zokutywinwa, kwaye ukugqoka kukhulu, kwaye kulula ukubangela imikrwelo.

3. Ngokuqhelekileyo, iivalve zesango zinezibini ezimbini zokutywina, ezongeza ubunzima bokucubungula, ukugaya kunye nokugcinwa.

4. Ixesha lokuvula kunye nokuvala lide.