四阀座密封三通球阀具有造型美观、结构紧凑合理，它不公可实现介质流向的切换，也可使三个通道互相连通，同时也可关闭任一通道，使另外两个通道连通，灵活控制管道中介质的分流合流。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PN1.6MAa凸面（光华面）BQ44F-16C5BQ44F-16P5BQ44F-16CF85BQ44F-16CF35BQ44F-16R5BQ44F-16CF85BQ44F-16R35PN2.5MAaBQ44F-25C5BQ44F-25P5BQ44F-25CF85BQ44F-25CF35BQ44F-25R5BQ44F-25CF85BQ44F-25R35PN4.0MAa凹凸面BQ44F-40C5BQ44F-40P5BQ44F-40CF85BQ44F-40CF35BQ44F-40R5BQ44F-40CF85BQ44F-40R35CLASS150凸面BQ44F-150(Lb)C5BQ44F-150(Lb)P5BQ44F-150(Lb)CF85BQ44F-150(Lb)CF35BQ44F-150(Lb)R5BQ44F-150(Lb)CF85BQ44F-150(Lb)R35主要零件材料阀体WCBZGlCrl18Ni9TiCF8(304)CF3(304L)ZGlCr18Nil2Mo2TiCF8M(316)CF8M(316L)球杆、阀杆2Cr131Cr18Ni9Ti0Cr18Ni9(304)00Cr19Nill(304L)1Cr18Nil2Mo2Ti0Cr17Nil2Mo2(316)0Cr17Nil2Mo2(316L)密封圈聚四氟乙烯片对位聚苯填料、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℃应用规格法兰尺寸JB79-59、SH3406、GB9113、HG20597-97ANSIB16.5JISV2212-2214检验试验按GB/T13928-89JB/T9092-99JISB2212-2214其余制造规范均按本厂标准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"32|1/2"40|1/2"50|1/2"65|1/2"80|1/2"100|1/2"125|1/2"200|1/2"PN1.06MPaL150150180200220220240260280320380500PN2.5MPaL1757590100110110120130140160190275PN4.0MPaH9090102115135135140155185210275335CLASS150W140140155250250250350350420700100018004-G3/83/83/81/21/21/21/21/21/21/21/21/2)