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CB/T 3728 C Quick Action Weathertight Small Steel Hatch Cover Open Both Sides
Description:
Small Hatch Cover Type C is a type of quick action weathertight hatch cover. With 2 handwheel on inner side and outside it can be used as emergency escape hatch. The central closing mechanism device has 4, 6, 8 dogs depending on the size of hatches. It is hinged with spring which makes the open and close much easier for the crew.Two shapes can be produced, one square and the other round. This hatch cover is fabricated according to the standards CB/T3728- 1995.
Main Technical Specification:
Main Technical Parameters:
| Nominal size L×B or Diameter | Clear Opening size L1×B1×R or Diameter | Cover size L2×B2×R | Cover thickness t | Hatch Coaming | Dog quantity | Weight Exclusive Hatch Coaming kg | |
| t0 | H | ||||||
| 530×530 | 500×500×100 | 588×588 | 4 | 4, 6 | 150 200 250 450 600 | 4 | 44.8 |
| 592×592 | 6 | 6, 8 | 51.4 | ||||
| 596×596 | 8 | 8, 11 | 58.0 | ||||
| 630×630 | 600×600×100 | 682×688 | 4 | 4, 6 | 4 | 50.0 | |
| 692×692 | 6 | 6, 8 | 58.7 | ||||
| 696×696 | 8 | 8, 11 | 67.5 | ||||
| 830x830 | 800x800x100 | 892x892 | 6 | 6, 8 | 6 | 76.2 | |
| 896x896 | 8 | 8, 11 | 85.1 | ||||
| Ф530 | Ф500 | 588 | 4 | 4, 6 | 4 | 42.2 | |
| 592 | 6 | 6, 8 | 47.5 | ||||
| 596 | 8 | 8, 11 | 52.8 | ||||
| Ф630 | Ф600 | 688 | 4 | 4, 6 | 4 | 46.1 | |
| 692 | 6 | 6,8 | 53.2 | ||||
| 696 | 8 | 8, 11 | 60.2 | ||||
| Ф830 | Ф800 | 892 | 6 | 6, 8 | 6 | 73.3 | |
| 896 | 8 | 8, 11 | 80.2 | ||||
Drawing of CB/T 3728 C Quick Action Weathertight Small Steel Hatch Cover Open Both Sides Marine Outfitting