Body pressure detection
|
ANSI B 16.34 Section 7.1 |
||
|
Valve size NPS |
Test pressure |
Test time sce |
|
DN50¡Ý |
1:5 times the 100¡ãC F |
15second |
|
DN65-200 |
Rating of AN ST Class |
60second |
|
DN250¡Ü |
Max. operating pressure |
180second |
|
Detect pressure than the maximum working pressure valve 1.5 times higher (100F) |
||
1.Seal hydrostatic test:The pressure should be more 1.1 times than working pressare by seal hydrastatic test.
|
ANSI B 16.34 Section 7.2 |
||
|
Valve size NPS |
Test pressure |
Test time sce |
|
DN50¡Ý |
1:5 times the 100¡ãC F |
15second |
|
DN65-200 |
Rating of AN ST Class |
30second |
|
DN250¡Ü |
Max. operating pressure |
60second |
|
Detect pressure than the maximum working pressure valve 1.5 times higher (100F) |
||
2.Seal air test: Seal air leakage test is based on 80psig (6kgf/cm^ nin-actiue gas or full filled with air, after dose the valve, then check it is leakage or not by one side of the valve.
Main dimensions
| DN(mm) | A | B | L | D | D1 | D2 |
| 15 | 129 | 64 | 210 | 15 | 21.3 | 42 |
| 20 | 129 | 64 | 230 | 15 | 26.7 | 42 |
| 25 | 159 | 76 | 230 | 20 | 33.4 | 48 |
| 32 | 159 | 85 | 260 | 25 | 42.2 | 60 |
| 40 | 230 | 95 | 300 | 32 | 48.3 | 76 |
| 50 | 230 | 100 | 300 | 40 | 60.3 | 89 |
| 65 | 300 | 159 | 300 | 50 | 76.1 | 114 |
| 80 | 300 | 170 | 300 | 65 | 88.9 | 140 |
| 100 | 450 | 192 | 325 | 80 | 114.3 | 165 |
| 125 | 450 | 208 | 325 | 100 | 141.3 | 216 |
| 150 | 450 | 241 | 350 | 125 | 168.3 | 219 |
