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Type A Marine Manhole Covers for ship
Type A marine manhole covers for ship:
This cover is used as watertight and oiltight manhole covers. Type A marine manhole cover is also called as rising type manhole cover.
Standard: CB/T19-2001
Material: Carbon Steel Q235
Technical Data:
| Type | Nominal Size | L1 | L2 | L3 | B1 | B2 | B3 | S | Fastener | Weight kg | |
| mm | Dai | Qut | |||||||||
| A | 450x350 | 450 | 470 | 570 | 350 | 370 | 470 | 4 | M20 | 16 | 23.2 |
| 6 | 30.8 | ||||||||||
| 8 | 36.9 | ||||||||||
| 10 | 45.8 | ||||||||||
| 600x400 | 600 | 620 | 720 | 400 | 420 | 520 | 6 | 20 | 48.8 | ||
| 8 | 59.2 | ||||||||||
| 10 | 69.3 | ||||||||||
| 12 | 79.6 | ||||||||||
| 800x600 | 800 | 820 | 920 | 600 | 620 | 720 | 8 | 26 | 52.4 | ||
| 10 | 65.8 | ||||||||||
| 12 | 78.2 | ||||||||||
| 14 | 90.2 | ||||||||||