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Marine ship cast iron sunk manhole hatch cover for ship is used for manhole on the oil tanks, void tanks and other tanks onboard various ships, it is fixed at flat positions of the hold bottom, deck and bulkhead. Marine ship cast iron sunk manhole hatch cover for ship is used for manhole on the oil tanks, void tanks and other tanks onboard various ships, it is fixed at flat positions of the hold bottom, deck and bulkhead.
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Main Material:
Cover: Carbon Steel Q235
Coaming: Carbon Steel Q235
Seal Ring: NBR
Bolt, Nut, Washer: Stainless Steel, Caron Steel , Copper
advantages:
l Security, prevent the cover being stolen
l No noise.
l High load-bearing
l corrosion resistance
l Safe
This marine manhole cover applies to the watertight and oiltight cover.
Material:
steel .
Certificates:
CCS, BV, ABS, GL,LR,RINA,NK ,etc.
Drawing of Sunk Manhole Cover:

Specification And Dimension Of Sunk Manhole Cover:
Type | Clear size | L1 | B1 | L2 | B2 | R | S | Fasteners | Weight(kgs) | |
L×B | ||||||||||
| DIA | QTY |
| |||||||
E | 530×430 | 656 | 556 | 698 | 598 | 250 | 14 | M20 | 20 | 73.02 |
18 | 81.5 | |||||||||
630×430 | 756 | 556 | 798 | 598 | 250 | 14 | 24 | 83.17 | ||
18 | 93.4 | |||||||||
630×480 | 756 | 606 | 798 | 648 | 275 | 14 | 24 | 89.67 | ||
18 | 98 |

It is our vision and goal to provide an easy, smooth and enjoyable experience for the end users of our Customized Steel Type a B C Marine Manhole Cover, and ultimately help our customers realize their business value. We continue to strengthen process management to achieve full participation and comprehensive quality management. "We will never stop pursuing quality and perfection, and we will never stop satisfying customers' needs" is our goal and action guide.
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