电动硬密封蝶阀；D943H-16C金属多层次硬密封法兰蝶阀

D41H-16CP DN65/D41H-16CP DN80/D41H-16CP DN100/D41H-16CP DN125/D41H-16CP DN150/D41H-16CP DN200/D41H-16CP DN250/ D41H-16CP DN300/D41H-16CP DN350/D41H-16CP DN400/D41H-25CP DN40/D41H-25CP DN50/D41H-25CP DN65/D41H-25CP DN80/D41H-25CP DN100/D41H-25CP DN125/D41H-25CP DN150/D41H-25CP DN200/D41H-25CP DN250/ D41H-25CP DN300/D41H-25CP DN350/D41H-25CP DN400/D71H-10CP DN40/D71H-10CP DN50/D71H-10CP DN65/D71H-10CP DN80/D71H-10CP DN100/D71H-10CP DN125/D71H-10CP1.特点:    结构长度短,重量轻; 阀体强度高,壳体试验压力为2PN; 蝶阀为双平板桁架式,流阻小; 具有对介质双向截止可靠的密封结构,其渗漏量为零; 不必从管路上拆下阀门即可更换密封圈(通径大于DN700); 轴承为自润滑轴承,不需注油,磨擦力小; 有立式,卧式两种安装形式,根据需要供货;  阀体,蝶板材料可采用合金铸铁,以适用于海水介质.2.主要零件材料: