KFF科菲安全阀安全阀是一种安全保护用阀，它的启闭件受外力作用下处于常闭状态，当设备或管道内的介质压力升高，超过规定值时自动开启，通过向系统外排放介质来防止管道或设备内介质压力超过规定数值。安全阀属于自动阀类，主要用于锅炉、压力容器和管道上，控制压力不超过规定值，对人身安全和设备运行起重要保护作用。
A21H弹簧微启式外螺纹安全阀是一种安全保护用阀，它的启闭件受外力作用下处于常闭状态，当设备或管道内的介质压力升高，超过规定值时自动开启，通过向系统外排放介质来防止管道或设备内介质压力超过规定数值。安全阀属于自动阀类，主要用于锅炉、压力容器和管道上，控制压力不超过规定值，对人身安全和设备运行起重要保护作用。
 SKU:弹簧微启式外螺纹安全阀(A21H) |
Description:
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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 |
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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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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 |
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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 |
50CrVACoated Teflon |
50CrVACoated 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" CoDepositing stellite, "H" D507 Depositing D507, "W"body |
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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 |
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