型号四通四密封球阀材质品牌西博思材质碳钢连接形式螺纹结构形式浮动球球阀特点一、两阀座密封三通球阀结构紧凑、外型美观、密封性能好。也能实现管道中介流向的切换。也能使阻互垂直的两个通道连通或关闭。二、四阀座密封三通球阀造型美观，结构紧凑合理，它不仅可实现介质流向的切换，也可使三个通道相互连通，同时也可关闭任一通道，使另外一通道连通，灵活控制管路中介质的合流或分流。一、主要零件材料序号材料标准零件名称材料牌号序号材料标准零件名称材料牌号碳钢不锈钢碳钢不锈钢GBASTMGBASTMGBASTMGBASTM01底盖25A1051Cr18Ni9Ti1Cr18Ni12Mo2F304/F316/F304L/F316L16侧盖WCBASTM1Cr18Ni9Ti1Cr18Ni12Mo2CF8/CF8M/CF3/CF3M02底盖螺钉25CrMoAA193-B71Cr17Ni2A193-B8M17垫圈氟橡胶；PTFE；金属夹石墨03垫圈氟橡胶；PTFE；金属夹石属18螺母45A194-2h0Ci18NiA194-8M04止推轴承金属夹PTFE19双头螺柱35CrMoAA193-B71Cr17Ni2A193-B8M05下阀杆2Cr13A276-4101Cr18Ni9Ti1Cr18Ni12Mo2F304/F316/F304L/F316L20垫圈氟橡胶；PTFE；金属夹石墨06下阀杆轴承金属夹PTFE21阀盖WCBA216-WCB1Cr18Ni9Ti1Cr18Ni12Mo2CF8/CF8M/CF3/CF3M07排污塞2Cr13A276-4101Cr18Ni9Ti1Cr18Ni12Mo2F304/F316/F304L/F316L22止推轴承PTFEPTFEPTFEPTFE08阀体WCBA216-WCB1Cr18Ni9Ti1Cr18Ni12Mo2F304/F316/F304L/F316L23压环25镀铬A105镀铬1Cr18Ni9Ti1Cr18Ni12Mo2F304/F316/F304L/F316L09阀座O型圈氟橡胶氟橡胶氟橡胶氟橡胶24填料函O型圈氟橡胶氟橡胶氟橡胶氟橡胶10阀座弹簧17-7PH17-7PH17-7PH17-7PH25阀杆O型圈氟橡胶氟橡胶氟橡胶氟橡胶11阀座PTFE；PPLPTFE；PPLPTFE；PPLPTFE；PPL26阀杆填料石墨12阀座支承圈25镀铬A105镀铬1Cr18Ni9Ti1Cr18Ni12Mo2F304/F316/F304L/F316L27填料压盖WCBA216-WCB1Cr18Ni9Ti1Cr18Ni12Mo2CF8/CF8M/CF3/CF3M13球体1Cr18Ni9Ti3041Cr18Ni9Ti1Cr18Ni12Mo2F304/F316/F304L/F316L28螺钉35CrMoAA193-B71Cr17Ni2A193-B8M14球体键40Cr40Cr1Cr17Ni21Cr17Ni229支架WCBWCBWCBWCB15上阀杆2Cr13A276-4101Cr18Ni9Ti1Cr18Ni12Mo2F304/F316/F304L/F316L30键40Cr40Cr1Cr17Ni21Cr17Ni2)