Ezi zivalo zisetyenziselwa ukulawula iintshukumo ze actuator kwaye ziyivale macala omabini. Ukuze ube nokuhla komthwalo phantsi kolawulo kwaye ugweme ubunzima bomthwalo obuthwalwayo i-valve iya kuthintela nayiphi na i-cavitation ye-actuator. Ezi zivalo zifanelekile xa...