塑料球阀主要连接尺寸及重量：公称通径标准值参考值DN（mm）NPS（inch）LDD1D2fbZ-∮dD0HW（kg）PN1.6（MPa）151/2140/1309565452144-∮14120802.5203/4140/13010575552164-∮14140903251150/14011585652164-∮141601004.53211/4165135100782184-∮181601105.74011/2180/165145110853184-∮182001207502200/2031601251003204-∮182501359.56521/2220/2221801451203204-∮1830014515803250/2411951601353224-∮18350185191004280/3052151801553228-∮18400195331255320/3562452101853248-∮18500210581506360/3942802402103248-∮23200*4509320084573352952653268-∮23240*490155250105333903503203288-∮23240*550210公称通径DN（mm）结构长度L（mm）结构长度公差（mm）工作压力（MPa）使用介质温度（℃）15100&plu***n;0.341.0-20℃~120℃20120&plu***n;0.341.025140&plu***n;0.381.032160&plu***n;0.421.040160&plu***n;0.421.050180&plu***n;0.461.065220&plu***n;0.551.080250&plu***n;0.601.0100280&plu***n;0.651.0塑料球阀材质表：序号材质序号材质1阀体6锁紧螺母2手柄7球3阀杆8下密封座4压盖9下密封5填料环)