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Spring micro opening external thread safety valve
Spring micro opening external thread safety valve .....
Product details
Spring micro opening external thread safety valve
series model
series model
|
A21F-16C |
A21F and A21H-C are suitable for equipment or pipelines with working temperatures ≤ 200 ℃ for media such as air, ammonia, petroleum gas, etc. A21W-P and R types are suitable for use as overpressure protection devices on equipment or pipelines with corrosive gases or liquids at temperatures ≤ 200 ℃. KA21Y type is suitable for liquefied petroleum gas with a temperature ≤ 100 ℃.
A21 structural diagram |
||
| 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 |
Main component materials
|
NO.
|
Part Name
|
A21H-C/A21F material
|
A21W-P/A21F-P material
|
A21Y-R material
|
|
1
|
pipe joint
|
20
|
1Cr18Ni9Ti
|
1Cr18Ni12Mo2Ti
|
|
2
|
Pipe joint nut
|
35
|
2Cr13
|
1Cr18Ni9Ti
|
|
3
|
valve seat
|
35
|
1Cr18Ni9Ti
|
1Cr18Ni12Mo2Ti
|
|
4
|
valve body
|
2Cr13
|
1Cr18Ni9Ti
|
1Cr18Ni12Mo2Ti
|
|
5
|
valve disc
|
2Cr13/2Cr13+PTFE
|
1Cr18Ni9Ti/1Cr18Ni9Ti+PTFE
|
1Cr18Ni12Mo2Ti
|
|
6
|
spring seat
|
2Cr13
|
1Cr18Ni9Ti
|
1Cr18Ni12Mo2Ti
|
|
7
|
spring
|
50CrVA
|
50CrVA coated fluoroplastic
|
50CrVA coated fluoroplastic
|
|
8
|
lock nut
|
Q235-A
|
ZG230-450
|
1Cr18Ni9Ti
|
|
9
|
Spring guided pad
|
2Cr13
|
1Cr18Ni9Ti
|
1Cr18Ni12Mo2Ti
|
|
10
|
adjusting nut
|
Q235-A
|
2Cr13
|
1Cr18Ni12Mo2Ti
|
|
|
Sealing surface material
|
Y-type cladding Co based hard alloy, H-type cladding D507, W-type for valve body
|
||
External dimensions and connection dimensions
|
model
|
Nominal Diameter
|
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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