Ukuqonda iiValves zeSango: Ukusebenza kunye neZibonelo

Ukunyuka kwesinyithi esihleli ngesango zizinto ezibalulekileyo kwizicelo zeshishini, ngakumbi ngaphakathi kommandla wolawulo lwamanzi. Ezi valve zenzelwe ukulawula ukuhamba kolwelo kunye negesi, kuqinisekisa ukusebenza okukhuselekileyo kunye nokusebenza kakuhle kwimibhobho. Ulwakhiwo lwabo olukhethekileyo lubandakanya indlela yokunyuka kwesiqu, ebonelela ngomboniso obonakalayo ocacileyo we-valve evulekileyo okanye evaliweyo, e