外螺纹截止阀主要零件材料Materialsformainparts零件名称Partname阀杆、阀盖Stem,Bonnet阀杆、阀瓣Stem,Disc填料PackingJ23W-16P铬镍不锈钢Cr.NiStainlesssteel铬镍不锈钢Cr.NiStainlesssteel聚四氟乙稀、柔性石墨PTEF,SoftgraphiteJ23W-40、J23W-160优质碳钢Highgradecarbonsteel铬不锈钢Cr.Stainlesssteel外螺纹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）Workingpressuer工作温度（℃）Workingtemperature适用介质Applicablemediun壳体Shell密封（液）Seal密封（气）SealJ23W-161.62.41.760.61.6P≤200℃液化***水、油品等PetroleungasWater,Oiletc.J23W-40P4.06.04.40.64.0J23W-16016.017.617.60.616.0C≤425℃J23W-320P32.048.035.20.632.0)