Izivalo zeplagi ze-DBB zigcina indawo, zinciphisa imfuno yeenkqubo ezibiza kakhulu ze-valve ezininzi, kwaye zibonelela ngezakhono zokuvuza zero ukusuka phezulu ukuya ezantsi. ibhloko kunye nokopha kunye nokuhlukaniswa kabini kunye nevalve yokukhulula ingasetyenziselwa izicelo ezahlukeneyo kunye neemarike, ezifana negesi yendalo engamanzi, i-petrochemical, ukuhanjiswa kunye nokugcinwa, inkqubo yoshishino lwegesi, umphathi kunye neevalvu ezininzi kwimibhobho yolwelo, kunye nombhobho wemveliso esulungekisiweyo. Ivalve yeplagi yenzelwe ukusetyenziswa kwimibhobho yolwelo enombhobho kunye neempawu zokukhupha ezimbini kunye neendawo zokuhlala ezikhuselwe ngokupheleleyo.
Ivalve yeplagi yeDBB isetyenziswa kwizicelo ezifuna ukwahlulwa okubalulekileyo ukuqinisekisa ukuba akukho kuvuza okwenzekayo.Ziziphi iintlobo zokhetho ezixhomekeke kuhlobo lwesicelo kunye nenkonzo.Umzekelo, kwindlela yamanzi okanye kufuphi nesixeko senkonzo yolwelo, ivalve yokwandisa kabini Ukwandiswa kwesakhono se-DBB sokwahlukaniswa okubalulekileyo, njengoko bebonelela ngokutywina okunyuka komsinga kunye nokusezantsi komatshini ngaxeshanye, ngokuqhelekileyo akuchatshazelwa lutshintsho loxinzelelo okanye ukungcangcazela.