| The ammonia uses the valve stop valve |
| Type of the products: J21B-25 , J21F-2 |
|
|
|
Major part material :
|
Part name
|
Valve body , valve covering
|
Valve one
|
Valve stem
|
Spacer
|
Packing
|
|
J21B-25Z
|
Casting iron
|
Carbon steel
|
High-quality carbon steel
|
Polytetrafluoroethylene (PTFE)
|
Polytetrafluoroethylene (PTFE)
|
|
J21F-25Z |
|
Performance norm:
|
Nominal pressure
PN(MPa) |
Test pressure PS (MPa)
|
Working pressure
P(MPa)
|
Working temperature
(degrees Centigrade)
|
Suitable medium
|
|
Shell
|
Seal
|
|
2.5
|
2.75
|
3.75
|
2.5
|
≤ 150
|
Ammonia , ammonia liquid
|
|
Main size:
|
Nominal and open directly
DN(mm)
|
Size (mm)
|
|
L
|
D
|
D 1
|
H
|
H 1
|
D 2
|
|
10
|
175
|
14
|
20
|
170
|
190
|
80
|
|
15
|
180
|
20
|
26
|
170
|
150
|
80
|
|
20
|
190
|
23
|
30
|
175
|
155
|
100
|
|
25
|
213
|
28
|
34
|
190
|
165
|
120
|
|
32
|
-
|
-
|
-
|
-
|
-
|
140
|
|
Performance norm: |
Count the liquid of modes in Chinese operatic music of BR25 glass |
|
|
Nominal pressure PN (MPa) |
2.5 |
|
Experiment pressure PS (MPa) |
3.8 |
|
Suitable medium |
NH 3 |
|
Working temperature (degrees Centigrade) |
-20~150 |
|
|
|
Main external dimension and form of connecting:
|
Name
|
Type
|
Size (mm)
|
Weight (kg)
|
Connect the form
|
|
H
|
H1
|
L
|
L1
|
|
Modes in Chinese operatic music of the glass
The liquid is counted firmly
|
BR25-250
|
216
|
84.5
|
350
|
440
|
8.58
|
Other whorl
|
|
BR25-500
|
|
84.5
|
500
|
590
|
13.28
|
|
BR25-800
|
216
|
84.5
|
800
|
890
|
22.69
|
|
BR25-1100
|
|
84.5
|
1100
|
1190
|
32.11
|
|
BR25-1400
|
216
|
84.5
|
1400
|
1490
|
41.54
|
|
BR25-1700
|
|
84.5
|
1700
|
1790
|
50.96
|
|
