(1) Iivalvu zokwakhiwa kwedolophu: iivalvu zoxinzelelo oluphantsi zisetyenziswa ngokubanzi kwiinkqubo zokwakha zasezidolophini, kwaye ngoku ziphuhlisa kwicala lokhuseleko lokusingqongileyo kunye nokonga amandla.

Iivalvu zepleyiti yerabha evumelana nokusingqongileyo, iivalvu zebalance, iivalve zebhabhathane zomgca ophakathi, kunye neevalvu zebhabhathane ezitywinwe ngentsimbi ngokuthe ngcembe zithatha indawo yeevalvu zentsimbi ezinoxinzelelo oluphantsi.Uninzi lweevalvu ezisetyenziswa kwizakhiwo zasezidolophini zasekhaya ziivalve zokulinganisa, iivalve zesango ezitywiniweyo ezithambileyo, iivalve zebhabhathane, njl.

(2) Iivalvu zokufudumeza ezidolophini: inani elikhulu leevalve zebhabhathane ezitywinwe ngentsimbi, iivalvu ezithe tyaba ezithe tyaba kunye neevalvu zebhola ezingcwatywe ngokuthe ngqo ziyafuneka kwinkqubo yokufudumeza edolophini.Ezi valves zixazulula ingxaki yokungalingani kwe-hydraulic ethe nkqo kunye nethe tyaba yombhobho, ukuphumeza ukugcinwa kwamandla, kunye nokunciphisa ukuveliswa kobushushu.injongo ye.

(3) Iivalvu zegesi yesixeko: Irhasi yesiXeko ithatha i-22% yayo yonke imarike yegesi yendalo, kwaye isixa seevalvu sikhulu kwaye zininzi iintlobo.Ifuna kakhulu ivalve yebhola, ivalve yeplagi, ivalve yokunciphisa uxinzelelo, ivalve yokhuseleko.

(4) Iivalvu zemibhobho yomgama omde: imibhobho yomgama omde ubukhulu becala yi-oyile ekrwada, iimveliso ezigqityiweyo kunye nemibhobho yendalo.Iivalvu ezifunwa kakhulu yile mibhobho yintsimbi ekhutshiweyo eneziqwenga ezintathu ezizele iivalvu zebhola, iivalvu zesango ezisicaba ezichasene nesalfure, ukubaleka kokhuseleko, kunye neevalvu zokutshekisha.

5 inkqubo yogutyulo lwelindle ifuna ikakhulu ukusebenzisa ivalve yebhabhathane etywiniweyo kunye nevalve yebhabhathane.