1.direct-Ba valves ya kosala .
Ba solenoïdes wana ezali na bobine oyo efungolaka na magnétique valve na action directe, esalaka que arbre mpe kiti ya valve ebalukaka. Direct-Ba valves ya ba solenoïdes oyo ezo sala esalelaka énergie oyo esalemi na champ magnétique ya solenoïde pona ko fonctionner valve. Ntango balongoli courant électrique, ressort mécanique ezongisaka valve na esika na yango ya ebandeli.
2.pilot-Ba valves oyo esalemi .
Na pilote-Ba valves oyo esalemi, piston efungolaka bofungoli ya pilote ntango pression esalaka ete valve efungwama mpe ekangama. Malgré le fait que pilote-Ba valves oyo esalemi esengaka moins d’énergie électrique mpo esala, esengeli ezala na puissance mobimba na but ya suka ya sikisiki mpo na kotikala na état ouvert, mpe esalaka na rythme ya malembe koleka directement-Acting Solenoïdes. Direct-Ba valves oyo esalaka esengeli kaka na puissance mobimba tango ya kofungola valve, lokola bakoki kosimba position na bango ya vide malgré tango bazali kosala na puissance ya moke.
3.mibale-Ba valves ya nzela .
Oyo ezali lolenge ya solenoïde oyo emonanaka mingi. Mibale-Ba valves ya nzela ezali na ba ports mibale, oyo esalelamaka na ndenge mosusu mpo na kopesa nzela na koleka lokola mpe kokanga yango. Valve ya nzela mibale-ekoki kozala "normalement ouvert" to "normalement fermé" na fonctionnement na yango. Na valve oyo efungwami mbala mingi, valve etikalaka polele tii ntango bakopesa courant mpo na kokanga valve. Ntango nguya ya kura ekangami, valve yango efungolaka lisusu yango moko na ezalela na yango ya momeseno. Solenoïde oyo ekangami normalement etikalaka kokangama tii ntango source ya puissance esalaka ete efungwama.
