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Marine Rising Manhole Cover:
Marine Rising Manhole Cover:
Standard: CB/T19-2001
Marine Manhole Cover is used for manhole on the oil tanks, water tanks, voil tanks and other tanks on various shipes. It is fixed on the falt positions on the hold bottom, deck and bulkhead.It is watertight and oiltight.There are Type A,B,C & D. The shape can be round, oval, square.
*Manhole Cover Type A is also called as Marine Rising Manhole Cover.
Main Material:
Cover: Carbon Steel
Coaming: Carbon Steel
Seal Ring: NBR
Bolt, Nut, Washer: Stainless Steel, Caron Steel , Copper
Main Size List(mm):
| Model | Nominal Size | L | L1 | L2 | B | B1 | B2 | S | Bolt | Weight | |
| LxB | Diamter | Quantity | kgs | ||||||||
| A | 450x350 | 450 | 470 | 570 | 350 | 370 | 470 | 4 | M20 | 16 | 23.2 |
| 6 | 30.8 | ||||||||||
| 8 | 36.9 | ||||||||||
| 10 | 45.8 | ||||||||||
| 600x400 | 600 | 630 | 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 | ||||||||||
