E-mail: sales@acirmarine.com
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Steel/Aluminum Marine Manhole Cover

Marine manhole cover is suitable for ship watertight and oil tight manhole cover, comply with ISO5894. We designed the marine manhole cover according to GB/T5746, CB/T19-2001 AND ISO3903. Material of marine manhole cover includes: steel, aluminum, stainless steel as per clients’ request....

Product Details

 

Marine manhole cover is suitable for ship watertight and oil tight manhole cover, comply with ISO5894. We designed the marine manhole cover according to GB/T5746, CB/T19-2001 AND ISO3903.

Material of marine manhole cover includes: steel, aluminum, stainless steel as per clients’ request.

Customized according to clients’ special drawing.

Available Certificate: CCS, ABS, BV, LR, GL, DNV, RINA, etc.

 

Ship Proportions

L/B

The ratio of the length and breadth can differ quite dramatically depending on the type of vessel. Common values:

Passenger Ships

6-8

Freighters

5-7

Tug Boats

3-5

A larger L/B value is favorable for speed, but unfavorable for manoeuvrability.

L/D

The length/depth-ratio. The customary values for L/D varies between 10 and 15. This relation plays a role in the determination of the freeboard and the longitudinal strength.

B/T (T=Draught)

The breadth/draught -ratio, varies between 2.3-4.5. A larger breadth in relation to the draught (a larger B/T value) gives a greater initial stability.

B/D

The breadth / depth ratio, varies between 1.3 and 2. If this value becomes larger, it will have an unfavorable effect on the stability (because the deck will be flooded when the vessel has an inclination) and on the strength. 

Should you have any preference for the steel/aluminum marine manhole cover, welcome to buy the quality equipment with our factory. As one of the most professional marine equipment manufacturers and suppliers in China, we will offer you good after-sale service and fast delivery.

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