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弹簧微启式外螺纹安全阀;弹簧微启式外螺纹安全阀
产品型号弹簧微启式外螺纹安全阀：A21F-16C、A21H-16C、A21W-16P、A21Y-16R |
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| A21F、A21H-C型弹簧微启式外螺纹弹簧微启式外螺纹安全阀安全阀适用于工作温度≤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弹簧微启式外螺纹安全阀，作为超压保护装置。KA21Y型适用于温度≤100℃的液化石油气等。 |
弹簧微启式外螺纹弹簧微启式外螺纹安全阀安全阀主要零部件材料弹簧微启式外螺纹安全阀：
|
NO. |
零件名称 |
A21H-C/A21F材料 |
A21W-P/A21F-P材料 |
A21Y-R材料 |
|
1 |
管接头 |
20 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
|
2 |
管接头螺母 |
35 |
2Cr13 |
1Cr18Ni9Ti |
|
3 |
阀座 |
35 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
|
4 |
阀体 |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
|
5 |
阀瓣 |
2Cr13/2Cr13+PTFE |
1Cr18Ni9Ti/1Cr18Ni9Ti+PTFE |
1Cr18Ni12Mo2Ti |
|
6 |
弹簧座 |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
|
7 |
弹簧 |
50CrVA |
50CrVA包覆氟塑料 |
50CrVA包覆氟塑料 |
|
8 |
锁紧螺母 |
Q235-A |
ZG230-450 |
1Cr18Ni9Ti |
|
9 |
弹簧导向垫 |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
|
10 |
调节螺母 |
Q235-A |
2Cr13 |
1Cr18Ni12Mo2Ti |
|
|
密封面材料 |
"Y"型堆焊Co基硬质合金弹簧微启式外螺纹安全阀,"H"型堆焊D507,"W"型为阀门本体 | |
弹簧微启式外螺纹弹簧微启式外螺纹安全阀安全阀外形尺寸和连接尺寸弹簧微启式外螺纹安全阀：
|
型号 |
公称通径 |
do |
d |
Do |
M |
d1 |
D1 |
L |
L1 |
≈H |
|
KA21-16C
A21H-16C
A21H-40
A21W-16P
A21W-40P
KA21-16P |
15 |
12 |
15 |
20 |
M27×1.5 |
G1/2" |
30 |
35 |
76 |
66 |
|
20 |
16 |
20 |
25 |
M33×1.5 |
G3/4" |
35 |
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 | |
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