Quick Acting Watertight Hatch Cover
- Application
Suitable for all kinds of marine hatch covers meeting quick acting and high pressure requirements.
| Type | Name | Nominal size | Water pressure (MPa) |
| A | Round quick acting watertight hatch cover | Ø600, Ø650, Ø700, Ø750, Ø800 |
0.2 |
| B | Square quick acting watertight hatch cover | 600×600, 700×700, 800×800 | 0.2 |
A type structure and main size
| Nominal size D | Cutout in steel wall D1 | Coaming inner size D2 | Cover plate size D3 | Cover plate thickness t | Coaming Thickness t1 & Height H |
Weight kg |
| 600 | 640 | 670 | 720 | 12 | T12 & H200 | 245 |
| 650 | 690 | 720 | 770 | 12 | T12 & H200 | 266 |
| 700 | 740 | 770 | 820 | 12 | T12 & H200 | 285 |
| 750 | 790 | 820 | 870 | 12 | T12 & H200 | 306 |
| 800 | 840 | 870 | 920 | 12 | T12 & H200 | 328 |
Note: The weight in above table doesn’t contain weight of coaming, which height is up to buyer’s choice.