J49W/H压力计截止阀主要零件材料：零件名称阀体阀杆阀底座填料填料阀盖手轮J49H-320-DN3碳钢铬不锈钢聚四氟乙稀柔性石墨碳钢优质碳钢J49w-320P-DN6铬镍不锈钢铬不锈钢铬镍不锈钢不锈钢主要性能规范：型号公称压力(Mpa)试验压力PS(Mpa)工作压力(Mpa)工作温度(℃)适用介质壳体密封(液)密封(气)J49H-32032.048.035.20.632.0P≤540℃液化***水、酸、蒸汽、油品等J49H-320P32.048.035.20.632.0C≤425℃主要外形及连接尺寸：型号公称直径DN(mm)尺寸重量(kg)L1D1D2HH1L2hh"M1L3J49H-3203606550881006015ф70M20×1.5161.3J49H-320P6606550881006015ф70M20×1.5161.3)