内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PackingJ13W-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，SoftgraphiteH13W-160、J13W-40优质碳钢Hihggradecarbonsteel铬不锈钢Cr，Stainlesssteel内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（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）SealJ13W-161.62.41.760.61.6P＜540℃液化***水、酸、蒸汽、油品等PetroleungasWater,Asic,Steam,Oiletc.J13W-40P4.06.04.40.64.0J13W-16016.024.017.60.616.0C＜425℃J13W-320P32.048.035.20.632.0)