Marine Rotating Oiltight Hatch Cover

Marine Rotating Oiltight Hatch Cover

Marine Rotating Oiltight Hatch Cover is a kind of hatch cover which is suitable for the open deck hatches of large bulk cargo ships and oil, mining and bulk multi-purpose ships. It has the advantages of being oil tight. We provide two types of this product: type A round, type B elliptic. Customization is also available. If you 're interested with our product, feel free to contact us.

Parts

Configuration Options

Part name	Material	Pros & Cons
Cover plate	AL6063	Good plasticity, moderate heat treatment strength, good welding performance and gorgeous color on the surface after anodizing treatment, but not fireproof
	Q235-A	Good toughness and plasticity, certain elongation, hot workability.
	Stainless steel	Stainless steel contains chromium, strong corrosion resistance, smooth appearance and metallic luster. But the hardness is poor, not wear-resistant and the price is high..
Coaming	AL6063	Good plasticity, moderate heat treatment strength, good welding performance and gorgeous color on the surface after anodizing treatment.
	Q235-A	Good toughness and plasticity, certain elongation, hot workability. Welding performance is weak than Q235-B
	Stainless steel	Stainless steel contains chromium, strong corrosion resistance, smooth appearance and metallic luster. But the hardness is poor, not wear-resistant and the price is high.
Lock	SUS304	Sturdy and not easy to damage, and resistant to seawater corrosion
	Q235	Good welding performance, Good low temperature toughness
Sealing	Neoprene rubber	Excellent Watertight performance
	Butadiene rubber	Excellent oil resistance, abrasion resistance and air tightness
Clip	SS304	rustproof, less brittle
	Q235	Good toughness and plasticity, certain elongation, hot workability.

Comparison Differences

Other manufacturer’s low quality oiltight hatch	HI-SEA high quality oiltight hatch
1. The material used for hatch plate has high carbon content, low hardness and thin brittleness. 2. The hatch surface improper handling, not anti-rust, and the appearance is not beautiful. 3. The handle is made of cheap carbon steel, which is easy to rust and damage and has high maintenance cost. 4. The sealing material has poor flexibility and is prone to deformation, fracture and corrosion. 5. The welding process of the parts is not good, the service life of the hatch cover is shortened, and brittle fracture may occur seriously.	1. The hatch cover plate is made of high-quality steel and aluminum with a solid and stable structure. 2. The hatch cover has excellent welding technology and long service life. 3. The use of high-quality sealing materials, good sealing performance and not easy to deform. 4. The hardware parts are made of high-quality stainless steel 316, which is strong and resistant to corrosion. 5. The certificate of each classification society is complete, which can meet the different needs of customers. 6. The product provides installation instructions.

Drawing & Specifications:

Optional IACS Certificate: BV, DNV.GL, CCS, LR, NK, ABS, IRS, RMRS, RINA

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