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A28W steam stainless steel safety valve spring full open safety valve enclosed stainless steel safety valve DN40

price:USD$920.00
discount 70% in 2018-10-21 to 2018-10-23
price: USD$ 644.00
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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Product model:A28H/W
 
    
     A28HSuitable for the work temperature are less than 250 of the air, steam, water, nitrogen and hydrogen mixed gas medium of the equipment or pipeline, A28Y-P/10R8 is suitable for the work temperature are less than 200 corrosion of the equipment or pipeline, as the overpressure protection device.
 
Two, main parts and materials

 

 

 

 
NO.
Part name
A28H material
A28Y-P material
A28Y-R8 material
1
valve body
HT200
ZG1Cr18Ni9Ti
CF8M
2
valve seat
35
ZG1Cr18Ni9Ti
CF8M
3
Regulating ring
2Cr13
1Cr18Ni9Ti
316
4
Valve
2Cr13
1Cr18Ni9Ti
316
5
Spring
50CrVA
50CrVA coated fluoroplastic
50CrVA coated fluoroplastic
6
The stem
2Cr13
2Cr13
316
7
Adjusting screw
45
2Cr13
316
8
Protective cover
ZG200-400
ZG200-400
CF8M
 
Sealing surface material
Surfacing D507
Hardfacing of Co based cemented carbide
Three. Main dimensions and connecting dimensions

 

 

 

Nominal diameter
size
do
Rc
G
L
L1
H
15
10
1/2"
3/4"
37
62
189
20
12
3/4"
1"
40
65
196
25
15
1"
11/4"
45
72
277
32
20
11/4"
11/2"
55
85
312
40
25
11/2"
2"
67
100
322
50
32
2"
21/2"
76
112
348
65
40
21/2"
3"
110
135
370
80
60
3"
4"
110
145
410