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外螺纹弹簧微启式不锈钢安全阀(A21H)简介
A21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
A21H弹簧微启式外螺纹安全阀适用于工作温度≤200℃的空气、氮、石油气等介质的设备和管路上。A21W型适用于工作温度≤200℃含腐蚀性的气体或液体的设备和管路上。A21F型适用于工作温度≤200℃的液化气、石油气等设备和管路上,作为超压保护装置。
弹簧微启式不锈钢安全阀主要零部件材料 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 |
弹簧微启式不锈钢安全阀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 |