HXF2型带双接管阻火呼吸阀☆技术参数：型号ModelHXF-IIHXF-IIZ防爆等级ExplosiongroupBS5501:ⅡAⅡBⅡC规格SizeDN25～350GB81～59PN0.6～2.5FFRF螺帽螺栓Bolt/Nut20#304304L316316L壳体材质BodyL2A3304304L316316LLining密封垫片Diaphragm(P/V)丁晴橡胶聚四氟乙烯金属垫片NBRPTFEMetalGasket阻火层材质FlameArrestor304304L316316L环境温度AmbientTemperatureCS:–30℃～+350℃SS:-80℃～+480℃正压阀盘材质SpringHoodL2A3PTFE304304L316316L连接方式JonitType法兰连接螺纹连接FlangeThreaded负压阀盘材质VacuumHoodL2A3PTFE304304L316316L法兰标准FlangesHGGBSHHGJJBANSIJIS正压阀盘压力SetPressure+36mmH2O～+1000mmH2O设计制造检测标准ManufactureInspectionGB5908-86SY7511-87负压阀盘压力SetVacuum-20mmH2O～-50mmH2O外表CoatingCS:PaintSS:Paint☆规格尺寸：DNLH251160500502320650803450750100445095015066201100200875012002501085015003001211001750☆综合技术参数主体材质A3(WCB)304(CF8)304(CF3)316(CF8M)316(CF3M)公称通径/公称压力DN15-400mm(1/2-16”)PN0.6-5.0MPa(150-600Lb)正负压阀盘材质A3L2304304L316316LPTFE阻火层材质304304L316316L哈氏合金蒙乃尔合金防爆等级BS5501：IIAIIBIIC螺帽螺栓20#304304L316316L密封垫片丁晴橡胶垫片聚四氟乙烯垫片金属垫片石墨垫片密封面突面（RF）平面（FF）凹凸面（MFM）榫槽面（TG）连接标准HGGBHGJJBANSIJISDINBSNF连接形式法兰连接（II）内螺纹连接（III）外螺纹连接（IV）设计制造检测标准GB5908-86GB1347-92工作温度碳钢:-30℃~+350℃不锈钢:-80℃~+480℃外表碳钢:防腐油漆不锈钢:酸洗处理或防腐油漆)