SKU:弹簧微启式外螺纹安全阀(A21H)Description:系列SeriesA21F-16CA21H-16CA21H-40A21H-64A21Y-100A21H-160A21W-16PA21W-40PA21F-40PA21W-64PA21W-100PA21W-160PKA21Y-16CKA21Y-16PA21Y-16RA21Y-40RA21Y-64RA21Y-100RA21Y-160RA21F、A21H-C型适用于工作温度≤200℃的空气、氨、***……等介质的设备或管路上。A21W-P、R型适用于温度≤200℃有腐蚀性的气体或液体的设备或管路上，作为超压保护装置。KA21Y型适用于温度≤100℃的液化***等。A21F,A21H-Ctypeareusedfortheequipmentandpipelineoftheair,ammonia,petroleumgas,etc.mediumwhatthewor-kingtemperaturearelessthan200.A21W-P,Rtypeareusedfortheequipmentandpipelineofthequalitywithcorrodegasandliquidmediumshatthewor-kingtemperaturearelessthan200.Takeforextrapressureprotectiondevices.KA21Ytypeareusedforliquefiedpetroleumgaswhattheworkingtemperaturearelessthan100主要零部件材料ExplanationofmaterialsformainpartsNO.NameofpartA21H-C/A21FKA21Y-CMaterialsA21W-P/A21F-PKA21Y-PMaterialsA21Y-RMaterials1Union201Cr18Ni9Ti1Cr18Ni12Mo2Ti2Unionnut352Cr131Cr18Ni9Ti3Nozzle351Cr18Ni9Ti1Cr18Ni12Mo2Ti4Body2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti5Disc2Cr13/2Cr13+PTFE1Cr18Ni9Ti/1Cr18nI9Ti+PTFE1Cr18Ni12Mo2Ti6Springwasher2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti7Spring50CrVA50CrVACoatedTeflon50CrVACoatedTeflon8LockingnutQ235-A2Cr131Cr18Ni9Ti9Springguide2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti10AdjustingnutQ235-A2Cr131Cr18Ni12Mo2TiSealingsurfaceofmaterial"Y"CoDepositingstellite,"H"D507DepositingD507,"W"body外形尺寸和连接尺寸Dimensi***(mm)Type(DN)NominaldiameterdodDoMd1D1LL1HKA21Y-16CA21H-16CA21H-40A21W-16PA21W-40PKA21Y-16P15121520M271.5G1/2"3035766620162025M331.5G3/4"3440876825182531M391.5G1"4050100105A21Y-64A21Y-64PA21Y-100A21Y-100P15101525M391.5G1"44501006620102031M391.5G1"44501006825122531M391.5G1"4450100105A21W-160/160P15820/M242G1"445010026120825/M332G1"445010026125828/M362G1"4450100285)