| Art. | Size | Code |  | |
| 53 | 1/2” | 83053AD05 | 1 | 250 |
| 53 | 3/4" | 83053AD05 | 1 | 120 |
| 53 | 1" | 83053AE05 | 1 | 80 |
| 53 | 1"1/4 | 83053AG05 | 1 | 70 |
| 53 | 1"1/2 | 83053AH05 | 1 | 50 |
| 53 | 2" | 83053AJ05 | 1 | 25 |
| 53 | 2"1/2 | 83053AK05 | 1 | 18 |
| 53 | 3" | 83053AL05 | 1 | 14 |
| 53 | 4" | 83053AN05 | 1 | 8 |
53 | Non return valve
Non return valve, “MONDIAL”. Brass shutter.
Codes and dimensions
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