| Pipe Products: |
| 1. AMERICAN STANDARD |
| 2. JAPANESE STANDARD |
| 3. BRITISH STANDARD |
| 4. CHINESE STANDARD |
| 5. GERMAN STANDARD |
Steel Pipe Flange
| Airtight Style | Norminal pressure | |||||||||
| 0.25 (2.5) |
0.6 (6) |
1.0 (10) |
1.6 (16) |
2.5 (25) |
4.0 (40) |
6.3 (63) |
10.0 (100) |
16.0 (160) |
25.0 (250) |
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| Convex | DN10~2000 | DN10~1200 | DN10~600 | DN10~400 | DN10~300 | |||||
| Convex and concave | - | DN10~600 | DN10~400 | DN10~300 | - | |||||
| Slot cross-section | - | DN10~600 | DN10~400 | DN10~300 | - | |||||
| Entire plane | DN10~600 | DN10~1200 | - | |||||||
| Ring joint surface | DN15~400 | DN15~300 | ||||||||
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| Series products of convex flat welded ring slip-on plate steel pipe | |||||
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