BQ44、BQ45保温三通球阀一、连接尺寸表公称压力或压力级主要尺寸公称通径DN（mm/in）15/1/2''20/3/4''25/1''32/1/4''40/1/2''50/2''65/2/1/2''80/3''100/4''125/5''150/6''200/8''PN1.06paL150150180200220240260280320380440500PN2.5paL1757590100110120130140160190220275PN4.0paH9090102115135140155185210275305335CLASS150W140140155250250350350420700100013001800二、型号、零件材料及主要参数公称压力或压力级法兰密封性产品型号PN1.6pa凸面BQ445F-16CBQ445F-16PBQ445F-16CF8BQ445F-16CF3BQ445F-16RBQ445F-16CF8BQ445F-16R3PN2.5pa光滑面BQ445F-25BQ445F-25PBQ445F-25CF8BQ445F-25CF3BQ445F-25RBQ445F-25CF8BQ445F-25R3PN4.0pa凹凸面BQ445F-40BQ445F-40PBQ445F-40CF8BQ445F-40CF3BQ445F-40RBQ445F-40CFR8BQ445F-40R3CLASS150凸面BQ445F-150（Lb）CBQ445F-150（Lb）PBQ445F-150（Lb）P8BQ445F-150（Lb）P3BQ445F-150（Lb）RBQ445F-150（Lb）R8BQ445F-150（Lb）R3主要零件材料阀体WCBZG1Cr18Ni9TiCF8(304)CF3(304L)ZG18Ni12Mo2TCF8M(316)CF8M(316L)球体、阀杆2Cr131Cr18Ni9Ti0Cr18Ni9(304)00Cr19Nill(304L)1Cr18Ni12Mo2Ti0Cr17Ni12Mo2(316)0Cr17Ni12Mo2(316L)密封圈聚四氟乙烯对位聚笨填料、垫圈V型聚四氟乙烯柔性石墨环聚四氟乙烯片柔性石墨复合垫适用工况适用介质重油、胶类等硝酸腐蚀性介质强氧化性介质醋酸等腐蚀性介质尿素等腐蚀性介质适用温度-28~300℃应用规范法兰尺寸JB79-59、SH3406、GB9113、HG20597-97ANS1B16.5JISB2212-2214体验试验按GB/T13927-89JB/T9092-99)