型号Q648/649F（PPL、M）-16品牌西博思材质碳钢连接形式螺纹结构形式浮动球球阀一、主要外形和连接尺寸单位（mm）Q648/649F-16通径DNLL1DKD1n-ΦdbfHWmmin251″20010011585654-Φ141621931403211/4″220100140100764-Φ181822121644011/2″250125150110844-Φ18182230164502″260130165125994-Φ182032681906521/2″3001501851451184-Φ18203293210803″3201602001601328-Φ182033252471004″3701852201801568-Φ182233802761255″4302152502101848-Φ182234683481506″4802402852402118-Φ232435103782008″55027534029525612-Φ23243655432法兰标准：GB9113亦可按ANSIB16.5、JISB2212)