6软密封蝶阀  特点及用途 Features and usage 软密封蝶阀通常用于温度≤120℃，公称压力≤1.6Mpa的食品、医药、化工、石油、轻纺、造纸等给排水、气体 管道上作调节流量和截断流体的作用。其主要特点为： 1、设计新颖、合理、结构独特，重量轻，启闭迅速。2、操作力矩小，操作方便，省力灵巧。 2、可任意位置安装，维修方便。4、密封件可更换，密封性能可靠达到双向密封零泄漏、 3、密封材料耐老化、耐腐蚀，使用寿命长等特点。 Softly seals the butterfly valve usually to use in the temperature<=120℃,nominal pressure<=1.6Mpafood,the medicine,the chemical industry, The petroleum,the electric power,lightly spin,the papermaking and so on for draining water,on the gas pipiline makes the adjustment current Capacity and the interruption fluid function,its main charactristic is: 1,Design novel,reasonable,structure unique,the weight is light,opens shuts the news fast. 2,Operation moment of force is small,the ease of operation,reduces effort cleverly. 3,Mau any position installment,the service be convenient. 4,Seal may replace,the sealing property reliably achieved bidirectional seal zero divulges. 5,Packing material must get older,anti-corrosive,the service life is longer and so on the characteristic. 采用标准 Applicable standard 设计标准：GB/T12238-1989 法兰连接尺寸:GB/T9113.1-2000:GB/T9115.1-2000:JB78 结构长度：GB/T12221-1989 压力试验：GB/T13927-1992:GB/T9092-1999  主要技术参数 Main technical parameter

公称通径 Nominal diameter DN(mm) 50～2000 公称压力Nominal pressure PN（Mpa） 0.6 1.0 1.6 试验压力 test pressure 壳体强度试验Shell structural testing 0.9 1.5

2.4 密封试验Seal test 0.66 1.1 1.76 气密封试验Air test 0.6 0.6 1.76 适用介质applicable medium 空气、水、污水、蒸汽、煤气、油品等Air,water,sewage,steam,coal gas,oil quality and so on 驱动形式Actuation 手柄、涡轮、电动、气动Handle,worm gear,electrically operated,air operated  主要零部件材料 Material for main parts 零件名称Pafrts name 零件材料 阀体Body 灰铸铁、球墨铸铁、铸钢、衬各种橡胶、聚四氟乙烯等 Gray iron,modular cast iron,cast steel,lining each kind of rubber,teflon and so on 蝶板Disc 灰铸铁、球墨铸铁、铸钢、不锈钢、及特殊材料 Gray iron,modular cast iron,stainless steel and special material 密封圈Seal ring 球墨铸铁、铸钢、合金钢、不锈钢 Modular cast iron,cast steel,alloy steel,stainless steel 阀杆Stem 45#、2Gr13、不锈钢 Stainless steel 填料Packing O型圈、柔性石墨

O circke,flexible graphite  主要技术参数Main technical parameter 材料品种 氯丁橡胶 丁晴橡胶 乙丙橡胶 聚四氟乙烯橡胶 硅橡胶 氟橡胶 代号 (CR)X4 (NBR)X5 (EPDM)X3 (PTFE)F4 (SI)XI (FPM)X7 耐最高温度 99℃ 93℃ 135℃ 180℃ 180℃ 200℃ 耐最低温度 -29℃ -23℃ -46℃ -20℃ -55℃ -23℃