一、document.write('')document.write('')主要零件材料零件名称阀杆阀体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J49H-320P-DN6铬镍不锈钢铬不锈钢铬镍不锈钢不锈钢二、document.write('')document.write('')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≤540OC液化***水，酸，蒸汽，油品等J49H-320P32.048.035.20.632.0C≤425OC三、document.write('')document.write('')主要外形及连接尺寸型号公称直径DN（mm）尺寸重量（kg）L1D1D2L2HH1hH’M1L3J49H-3203606550608810015φ70M20×1.5161.3J49H-320P6606550608810015φ70M20×1.5161.3)