LZB Series have simple structure with low pressure loss, Corrosive resistant type using stainless steel or polytetrafluoroethylene(PTFE) can resistant most corrosive solvent. DN4~10 have hose connections and DN15~100 have flange connection or on request; the accuracy is 2.5%, corrosion-proof type is ¡¾4%, operation temperature is -20¡É~ 60¡É.