品牌西博思种类DDCV双瓣式材质碳钢连接形式螺纹结构形式升降式一、主要零件材料零件名称材料QH4142M-16QH4142M-25Q阀体HT200QT450-10阀瓣不锈钢密封圈复合石墨二、性能规范型号公称压力（MPa）试验压力（MPa）工作温度（℃）适用介质壳体密封（液）密封（气）QH4142M-161.62.41.80.6≤250℃水、蒸汽、油品QH4142M-25Q2.54.02.8三、外形尺寸和连接尺寸型号公称通径尺寸（mm）LDD1D2b-fz-ΦdQH4142M-161513095654516-24-1420150105755516-24-1425160115856516-24-14321801351007818-24-18402001451108518-34-185023016012510020-34-186529018014512020-34-188031019516013522-38-1810035021518015524-38-1812540024521018526-38-1815048028024021028-38-2320060033529526530-312-2325073040535532032-312-25QH4142M-25Q1510895654516-24-1420117105755516-24-1425127115856516-24-14321401351007818-24-18401651451108520-34-185020316012510020-34-186521618014512022-38-188024119516013522-38-1810029223019016024-38-2312533027022018028-38-2515035630025021830-38-2520049536031027834-312-2525062242537033536-312-3030069848543038938-416-30)