I-Velve yebhola ye-Pneumatic enesivinini esiphezulu

I-valve yebhola yomoya eshesha kakhulu isetshenziswa kakhulu ezimweni zenqubo lapho kunezidingo eziqinile zesivinini sokuvula nokuvala. Ifanele ukusetshenziswa ezinhlelweni zamapayipi ezidinga ukusika okusheshayo noma impendulo esheshayo, futhi ivame ukutholakala ezinqubweni zokusabela kwamakhemikhali ezibandakanya imidiya ekhethekile. Ngesikhathi sesigaba sokuklama, ukugxila kusivinini sesenzo, ukuzinza kokusebenza, kanye nokuphepha kohlelo, futhi kusebenza ezinhlelweni zokulawula ezinezinga eliphezulu lokuzenzakalela.
Ivalvu ifakwe i-actuator yomoya esheshayo, enedivayisi ye-buffer ngaphakathi. Lokhu kwenza kube lula ukuvulwa nokuvalwa okusheshayo ngenkathi kunciphisa ngempumelelo umthelela endaweni yokugcina yevalvu, kunciphisa umthwalo womshini emzimbeni wevalvu, isiqu sevalvu, kanye nezingxenye zokuvala, futhi kusiza ekuthuthukiseni ukuzinza kokusebenza okuphelele nokwandisa impilo yesevisi. Ngisho nangaphansi kwezimo zokusebenza okusheshayo, inqubo yokuvulwa nokuvalwa kwevalvu ihlala ibushelelezi, igwema umthelela omkhulu ohlelweni lwamapayipi.
Indawo yokuhluleka kwe-actuator ingakhethwa ngokuya ngezidingo zenqubo nokuphepha, futhi ingalungiswa njengendawo yokuvula amaphutha, ukuvala amaphutha, noma ukubamba amaphutha. I-valve isekela ukusebenza kwendawo kanye nokulawula okude, futhi ingalungiswa ngezikhombisi-ndlela, ukushintsha komkhawulo, ama-valve e-solenoid, kanye namamojula okuxhumana njengoba kudingeka, okwenza kube lula ukuxhumana nezinhlelo zokulawula ze-DCS noma ze-PLC zokulawula okuphakathi kanye nokuqapha isimo.
Isikhathi sokusebenza kwevalvu singasethwa ngokwezimo zokusebenza zangempela, sihlangabezane nezidingo zokuqedela ukuvula nokuvala phakathi nesikhathi esifushane kakhulu, noma sifinyelele inqubo yesenzo esheshayo ebushelelezi ngokulungiswa, okwenza ifaneleke ukusetshenziswa njengevalvu yenqubo kumadivayisi akhethekile okusabela kwamakhemikhali aphakathi nendawo.