外螺旋角式截止阀主要零件材料Materialsformainparts零件名称Partname阀体、阀盖Body,Bonnet阀杆、阀瓣Stem,Disc填料PackingJ24W-160P-DN3铬镍不锈钢Cr.NiStainlesssteel不锈钢Stainliesssteel聚四氟乙稀、柔性石墨PTEF,SoftgraphiteJ24W-320P-DN6优质碳钢Highgradecarbonsteel铬镍不锈钢Cr.NiStainlisssteel聚四氟乙稀、柔性石墨PTEF,Softgraphite外螺旋角式截止阀主要性能规范Chiefpropertyandspecifieation型号Type公称压力(MPa)Nominalpressure试验压力PS(MPa)Testpressure工作压力(MPa)Workingpressure工作温度(℃)Workingtemperature适用介质Applicablemediun壳体Shell密封（液）Seal密封（气）SealJ24W-160P-DN316.024.017.60.616.0P≤200℃液化***水、油品等PetroleungasWater,Oiletc.J24W-320P-DN632.048.035.20.632.0C≤425℃)