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A21 Spring loaded low lift external thread type safety valve
| Model No. : | A21 |
|---|---|
| Brand Name : | GOOLE |
Product description
A21F.A21H-C type are used for the equipment and pipeline of the air, ammonia, petroleum gas, etc. medium what the working temperature are less than 200℃.A21W-P,R type are used for the equipment and pipeline of the quality with corrode gas and liquid medium what the working 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℃.
A21F.A21H-C type are used for the equipment and pipeline of the air, ammonia, petroleum gas, etc. medium what the working temperature are less than 200℃.
A21W-P,R type are used for the equipment and pipeline of the quality with corrode gas and liquid medium what the working 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℃.
A21H/W/Y Type Spring Loaded Low Lift Safety Valve Main Parts Material
|
NO. |
Parts Name |
A21H-C/A21F Material |
A21W-P/A21F-P Material |
A21Y-R Material |
|
1 |
Nipple |
20 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
|
2 |
Nipple Nut |
35 |
2Cr13 |
1Cr18Ni9Ti |
|
3 |
Seat |
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 |
50CrVA |
|
8 |
Locking Nut |
Q235-A |
ZG230-450 |
1Cr18Ni9Ti |
|
9 |
Guide |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
|
10 |
Adjusting Bolt |
Q235-A |
2Cr13 |
1Cr18Ni12Mo2Ti |
|
|
Sealing |
"Y"---Stellite, "H"------D507, "W"------Body material |
||
A21H/W/Y Type Spring Loaded Low Lift Safety Valve Main Dimension
|
Model |
DN |
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 |
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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