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首页    产品 弹簧微启式外螺纹安全阀(A21H)     SKU:弹簧微启式外螺纹安全阀(A21H) Description: 系列 Series A21F-16C  A21H-16C  A21H-40  A21H-64  A21Y-100  A21H-160  A21W-16P  A21W-40P  A21F-40P  A21W-64P  A21W-100P  A21W-160P  KA21Y-16C  KA21Y-16P  A21Y-16R  A21Y-40R  A21Y-64R  A21Y-100R  A21Y-160R A21F、A21H-C型适用于工作温度≤200℃的空气、氨、石油气……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℃的液化石油气等。 A21F, A21H-C type are used for the equipment and pipeline of the air,  ammonia, petroleum gas, etc. medium what the wor-king temperature are less than 200 . A21W-P, R type are used for the equipment and pipeline of the quality with corr ode gas and liquid medium shat the wor-king temperature are less than 200 . Take for  extrapressure protection devices. KA21Y type are used for liquefied petroleum gas what the working temperature are less  than 100 主要零部件材料 Explanation of materials for main parts NO. Name of part A21H-C/A21F  KA21Y-C Materials A21W-P/A21F-P  KA21Y-P Materials A21Y-R    Materials 1    Union 20 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 2  Union nut 35 2Cr13 1Cr18Ni9Ti 3   Nozzle 35 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 4   Body 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 5   Disc 2Cr13/2Cr13+PTFE 1Cr18Ni9Ti/1Cr18nI9Ti+PTFE 1Cr18Ni12Mo2Ti 6    Spring washer 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 7   Spring 50CrVA 50CrVA Coated Teflon 50CrVA Coated Teflon 8  Locking nut Q235-A 2Cr13 1Cr18Ni9Ti 9  Spring guide 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 10  Adjusting nut Q235-A 2Cr13 1Cr18Ni12Mo2Ti 　  Sealing surface of material "Y" Co Depositing stellite, "H" D507 Depositing D507, "W" body 外形尺寸和连接尺寸 Dimensions (mm) Type (DN) Nominal diameter do d Do M d1 D1 L L1 H KA21Y-16C A21H-16C A21H-40 A21W-16P A21W-40P KA21Y-16P 15 12 15 20 M27    1.5 G1/2" 30 35 76 66 20 16 20 25 M33    1.5 G3/4" 34 40 87 68 25 18 25 31 M39    1.5 G1" 40 50 100 105 A21Y-64 A21Y-64P A21Y-100 A21Y-100P 15 10 15 25 M39    1.5 G1" 44 50 100 66 20 10 20 31 M39    1.5 G1" 44 50 100 68 25 12 25 31 M39    1.5 G1" 44 50 100 105 A21W-160 /160P 15 8 20 / M24    2 G1" 44 50 100 261 20 8 25 / M33    2 G1" 44 50 100 261 25 8 28 / M36    2 G1" 44 50 100 285 Browse Other Products 先导式安全阀A46F(Y) TFA48Y高温高压安全阀 弹簧微启式安全阀(A61Y) 安全溢流阀(AY42H) 真空负压安全阀(TFA72W)