Dutanga ubwoko bubiri bwa cheque valve, ruby cheque valve na ceramic cheque valve.Kugenzura indangagaciro zirahuza na LC ibyiciro byose bigendanwa.Kandi zirashobora gushyirwaho muri pompe yamazi hanyuma zigakoreshwa hamwe, nkibisimbuza inlet byasimbuwe mumazi 1515, 1525, 2695D, E2695 na 2795.