Our Closed Spring Loaded Low Lift Type High Pressure Safety Valves are utilized for corrosive equipment and pipelines. A41Y-160/320 kinds are utilized for equipment and pipelines that function below 200°C. A41Y-160P/320P and A41Y-160R/320R are utilized for corrosive gas and liquid equipment and pipelines below 200°C. Add pressure protection. A42Y-C is utilized for air, petroleum gas, liquid, and other low-temperature equipment and pipelines. A42Y-P and A42Y-R are utilized for corrosive equipment and pipelines. What’s below 200°C? A48Y is used in steam and air equipment and pipes up to 350. Use pressure-protection equipment. A48Y type is used for steam and air equipment and pipelines with temperatures below 350°C. A44Y type is utilized for air and petroleum gas operating temperatures less than 300°C equipment and pipelines. Add pressure protection devices.
Benefits:
- It uses a pressure self-sealing design and is joined at both ends by welding.
- To compensate for the difference in pressure between the intake and exit, it uses an electronic bypass valve.
- The method for shutting it uses a parallel pair of flashboards. To avoid dangerous strain during opening and shutting, the valve is sealed not by a wedge but by medium pressure.
- The sealing face has been built up using a strong alloy based on cobalt, which gives it great temperature resistance, corrosion resistance, abrasion resistance, and long service life.
- Valve stem surfaces that have been treated against corrosion and nitrogenization have improved corrosion resistance, abrasion resistance, and stuffing box sealing.
NO.
|
Name of part
|
A41Y-160
A41Y-320 Materials
|
A41Y-160P
A41Y-320P Materials
|
A41Y-160R A41Y-320R Materials
|
1
|
Flange
|
35/35CrMoA
|
2Cr13
|
1Cr18Ni9Ti
|
2
|
Nozzle
|
2Cr13
|
1Cr18Ni9Ti
|
1Cr18Ni12Mo2Ti
|
3
|
Body
|
35/40
|
1Cr18Ni9Ti
|
1Cr18Ni12Mo2Ti
|
4
|
Disc
|
2Cr13
|
1Cr18Ni9Ti
|
1Cr18Ni12Mo2Ti
|
5
|
Guide Sleeve
|
2Cr13
|
1Cr18Ni9Ti
|
1Cr18Ni12Mo2Ti
|
6
|
Spring
|
50CrVA
|
50CrVA Coated Teflon
|
50CrVA Coated Teflon
|
7
|
Stem
|
2Cr13
|
1Cr18Ni9Ti
|
1Cr18Ni12Mo2Ti
|
8
|
Bonnet
|
ZG230-450
|
1Cr18Ni9Ti
|
1Cr18Ni9Ti
|
9
|
Adjusting Bolt
|
45
|
2Cr13
|
2Cr13
|
10
|
Cap
|
ZG200-400
|
1Cr18Ni9Ti
|
1Cr18Ni9Ti
|
|
Sealing surface of seat and disc
|
|
Co Depositing stellite
|
Dimensions (mm):
Type
|
(DN)
|
do
|
d
|
M
|
D
|
K
|
Z-d
|
b
|
d1
|
M1
|
D1
|
k1
|
Z1-d1
|
b1
|
L
|
L1
|
H
|
A41Y-160(
|
15
|
8
|
20
|
M24*2
|
95
|
60
|
3-18
|
20
|
/
|
M33*2
|
36
|
/
|
/
|
/
|
50
|
80
|
85
|
20
|
10
|
25
|
M27*2
|
95
|
60
|
3-18
|
20
|
/
|
M33*2
|
48
|
/
|
/
|
/
|
50
|
80
|
85
|
25
|
12
|
28
|
M33*2
|
105
|
68
|
3-18
|
20
|
/
|
M33*2
|
48
|
/
|
/
|
/
|
50
|
80
|
85
|
A41Y-160
|
10
|
8
|
18
|
M24*2
|
95
|
60
|
3-18
|
20
|
29
|
M42*2
|
115
|
80
|
4-18
|
22
|
95
|
100
|
261
|
15
|
8
|
20
|
M24*2
|
95
|
60
|
3-18
|
20
|
29
|
M42*2
|
115
|
80
|
4-18
|
22
|
95
|
100
|
261
|
20
|
10
|
27
|
M33*2
|
105
|
68
|
3-18
|
20
|
29
|
M42*2
|
115
|
80
|
4-18
|
22
|
95
|
100
|
261
|
25
|
12
|
28
|
M33*2
|
105
|
68
|
3-18
|
20
|
50
|
M64*3
|
165
|
115
|
6-26
|
32
|
130
|
135
|
285
|
32
|
12,14,16
|
37
|
M42*2
|
115
|
80
|
4-18
|
22
|
50
|
M64*3
|
165
|
115
|
6-26
|
32
|
10
|
135
|
285
|
40
|
20
|
47
|
M52*2
|
165
|
115
|
6-26
|
28
|
65
|
M80*3
|
200
|
145
|
6-29
|
40
|
165
|
165
|
350
|
50
|
25
|
58
|
M64*3
|
165
|
115
|
6-26
|
32
|
80
|
M100*3
|
225
|
170
|
6-33
|
80
|
165
|
165
|
380
|
A41Y-320
|
10
|
8
|
18
|
M24*2
|
95
|
60
|
3-18
|
20
|
29
|
M42*2
|
115
|
80
|
4-18
|
22
|
95
|
100
|
261
|
15
|
8
|
27
|
M33*2
|
105
|
68
|
3-18
|
20
|
29
|
M42*2
|
115
|
80
|
4-18
|
22
|
95
|
100
|
261
|
20
|
10
|
30
|
M36*2
|
110
|
75
|
3-18
|
20
|
29
|
M42*2
|
115
|
80
|
4-18
|
22
|
95
|
100
|
261
|
25
|
12
|
35
|
M42*2
|
115
|
80
|
4-18
|
22
|
50
|
M64*3
|
165
|
115
|
6-26
|
32
|
130
|
135
|
285
|
32
|
12,14,16
|
41
|
M48*2
|
135
|
95
|
4-22
|
25
|
50
|
M64*3
|
165
|
115
|
6-26
|
32
|
130
|
135
|
285
|
40
|
20
|
58
|
M64*3
|
165
|
115
|
6-26
|
32
|
65
|
M80*3
|
200
|
145
|
6-29
|
40
|
165
|
115
|
350
|
50
|
25
|
70
|
M80*3
|
200
|
145
|
6-29
|
40
|
80
|
M100*3
|
225
|
170
|
6-33
|
50
|
165
|
|