|
Technical parameters
|
Nominal pressure MPa |
1.6 |
2.5 |
4.0 |
|
Shell test pressure MPa |
2.4 |
3.75 |
6.0 |
|
Seal test pressure MPa |
1.76 |
2.75 |
4.4 |
|
The overall pressure MPa |
The user to identify |
|
Suitable temperature |
- 40ºC ~ + 80ºC |
|
Applicable medium |
Ammonia, ammonia, vinyl chloride, carbon dioxide, and so on |
|
Inspection standard |
GB/T12243-2005 |
Main components:
|
The valve body |
The valve stem |
The disc |
The seat |
spring |
gasket |
|
WCB |
20Cr13 |
ZG20Cr13 |
ZG20Cr13 |
50CrVA |
PTFE |
Relief valve A42F/Y nominal pressure PN2.5 MPa shape size and the connection size
|
DN |
L |
L1 |
D |
D1 |
D2 |
d0 |
b |
f |
Z - phi d |
DN’ |
D’ |
D1’ |
D2’ |
B’ |
f’ |
Z - phi d ' |
H |
|
40 |
120 |
110 |
150 |
110 |
84 |
25 |
18 |
2 |
4 - phi 18 |
50 |
165 |
125 |
99 |
20 |
2 |
4 - phi 18 |
279 |
|
50 |
135 |
120 |
165 |
125 |
99 |
32 |
20 |
2 |
4 - phi 18 |
65 |
185 |
145 |
118 |
20 |
2 |
4 - phi 18 |
306 |
|
80 |
170 |
135 |
200 |
160 |
132 |
50 |
24 |
2 |
8 - phi 18 |
100 |
220 |
180 |
156 |
22 |
2 |
8 - phi 18 |
429 |
|
100 |
205 |
160 |
235 |
190 |
156 |
65 |
24 |
2 |
8-22 |
125 |
250 |
210 |
184 |
22 |
2 |
8 - phi 18 |
530 |
|
150 |
250 |
210 |
300 |
250 |
211 |
100 |
28 |
2 |
8 - phi 26 |
200 |
340 |
295 |
266 |
24 |
2 |
12 and 22 |
730 |
|
200 |
305 |
260 |
360 |
310 |
274 |
125 |
30 |
2 |
12 - phi 26 |
250 |
405 |
355 |
319 |
26 |
2 |
12 - phi 26 |
883 |
|
