电动闸阀具有以下优点：阻力小,密封面受介质的忡刷和侵蚀小。2、开闭较省力。1、流体3、介质流向不受限制,不扰流、不降低压力。4、形体简单,结构长度短，制造工艺性好，适用范围广。执行标准AdministerStandard设计与制造DesignandManufacture结构长度FaceToFace法兰尺寸FlangeDimension压力-温度PressureTemperatureLating试验-检验spectionAndTestGB122234GB12221GB9113JB79GB9131GB/T13927JB/T9092压力试验PressureTest公称压力NominalPressure1.62.54.06.410.016.0强度试验ShellTest2.43.86.09.615.024.0水密封试验WaterSealTest1.82.84.47.011.018.0上密封试验BackseatTest1.82.84.47.011.018.0气密封试验AirSealTest0.4-0.7主要零件材料及性能MainPartMaterialsandProperty体、盖、板BodyCoverDisc阀杆Stem密封面SealingFace垫片SealingShim填料Packing工作温度WorkingTemperature适用介质SuitableMediumWCB2Cr1313CrSTL木体材料WithBodyMaterial尼龙Nylon增强柔性石墨13Cr/柔性石墨EnhancedFlexibleGraphite1Cr13/FlexibleGraphite08软钢08SoftSteal0Cr18Ni9Ti0Cr17Ni12Mo2TiXD550F(T)PTFE柔性石墨增强柔性石墨FlexibleGraphiteEnhancedFlexibleGraphiteSFB/260SFP/260PTFE≤425水蒸汽油品WaterSteamＯilGoodsWC138CrMoAl25Cr2MoV≤450WC6≤540WC9≤570C5C12≤540ZGCr5Mo≤200硝酸类NitricacidZG1Cr18Ni9Ti1Cr18Ni9Ti≤200醋酸类AceticacidZG1Cr18Ni12Mo2Ti1Cr18Ni12Mo2Ti)