I-BS5163 i-valve yesango elihleli ngensimbi yizinto ezibalulekile ngaphakathi kwezinhlelo zokulawula uketshezi zezimboni, ezaziwa ngokuqina nokuthembeka kwazo. Idizayinwe ngaphansi kwezinga le-BS5163, lawa ma-valve enziwe ngqo ukusebenza ezindaweni ezifunayo, lapho izingcindezi eziphezulu namazinga okushisa kuvamile. Ngokungafani nama-valve amasango wendabuko, angasebenzisa izinto ezithambile ukuvala uphawu, ukuhlala kwensimbi ku-