1. Vula kwaye uvale ngaphandle kokungqubuzana.Lo msebenzi usombulula ngokupheleleyo ingxaki yokuba i-valve yendabuko ichaphazelekayo yingxabano phakathi kwendawo yokutywinwa kunye nokutywinwa.
2. Isakhiwo sejacket.I-valve efakwe kumbhobho inokujongwa kwaye ilungiswe ngokuthe ngqo.Inokunciphisa ngokufanelekileyo ukupaka kunye nokunciphisa iindleko zokuvelisa.
3. Uyilo lwesihlalo esinye.Iphelisa ingxaki yokuba i-cavity ephakathi kwevalve ichaphazeleka ngoxinzelelo olungaqhelekanga.
4. Uyilo lwetorque ephantsi.Uyilo olukhethekileyo lwesakhiwo sesiqu, kuphela ngesivalo esincinci sesandla esinokuvula nokuvala ngokulula.
5. Isakhiwo sokutywinwa kwe-Wedge.Ivalve ngamandla omatshini abonelelwa sisikhondo kwaye i-wedge icinezelwe kwisihlalo kwaye itywinwe.Ukusebenza kokutywina kwevalve akuchatshazelwa kukutshintsha koxinzelelo lombhobho umahluko, kwaye ukusebenza kokutywina kuqinisekisiwe. phantsi kweemeko ezahlukeneyo zokusebenza.
6. Isakhiwo esizicocayo somphezulu wokutywina.Xa ibhola ityekela kude nesihlalo, amava okuqukuqela kombhobho ecaleni kobuso besphere yetywina ukuya ngokulinganayo nge-360 °.Ayipheli kuphela ukugungxulwa kolwelo olukwisantya esiphezulu ukuya esitulweni, kodwa ikwahlamba izinto eziqokelelweyo kumphezulu wokutywina ukuze kuphunyezwe iinjongo zokuzicoca.