H42H锻钢立式升降止回阀主要外形和连接尺寸单位：mm公称压力PN主要外形尺寸和连接尺寸DNDoDDD2MdZ-φdHb16.0MPa15159560M24×23-18240205.5252310568M33×23-18262207.5322911580M42×24-1828522104039165115M52×26-262852819.532.0MPa10119560M24×23-18234205.5151710568M33×23-18240206252311580M42×24-18262228.5322913595M48×24-2228525124042165115M64×26-263163221)