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Products>Safety overflow valve

Material for main parts

Type
Nominal diameter DN(mm)
Opening pressure
Working temperature
Suitable medium
AY42H-160           TA802Y-160 
16.0
6.3-16.0
200℃
Water                     Oil                           etc.
AY42H-250             TA802Y-250 
25.0
10.0-25.0
AY42H-400          TA802Y-400           TA802Y-600  
40.0-60.0
20.0-60.0
No
Name of part
Mterials
1
Body
Carbon steel 
2
Seat
Stainless steel
3
Disc
Stainless steel
4
Bonnet
Welded bonnet
5
Spring
50CrVA

Dimensions(mm)

Type
DN(mm)
Rc
ZG
L
L1
≈H
TA802Y-600
15
1/2"
1/2"
52
90
250
20
1"
1"
52
113
275
25
1-1/2"
1-1/2"
52
157
336
 
 
 
 
 
Type
DN(mm)
D
D1
K
M
Z-Φd
b
L
L1
Rc
≈H
AY42H-160   AY42H-250   AY42H-400
15
135
95
25
M48 X 2
4-22
25
65
140
1"
329
20
165
115
30
M52 X 2
6-26
28
80
150
1-1/2"
447
25
200
145
38
M80 X 3
6-29
40
90
180
2"
485
32
225
170
42
M100 X 3
6-33
50
100
200
2-1/2"
570

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