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。
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| | | 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 | | |
