Heavy-Duty Marine Steel Manhole Covers
Our marine-grade steel manhole covers provide secure access with superior sealing for steel ships requiring watertight and oiltight compartment closures. Engineered to ISO 5892 and CB/T19-2001 standards, these heavy-duty covers are available in three configurations to meet diverse vessel requirements.
Key Features & Benefits
✔ Triple Configuration Options
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Type A: Manhole cover with coaming (most common)
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Type B: Flat manhole cover
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Type C: Sunk manhole cover (recessed installation)
✔ Superior Sealing Performance
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Watertight and oiltight certified
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Heavy-duty gasket systems
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Positive locking mechanisms
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Corrosion-resistant finishes
✔ Technical Specifications
| Type | Clear Size | Dimensions (mm) | Thickness (mm) | Weight (kg) |
|---|---|---|---|---|
| A | 450×350 | L1:450 L2:470 L3:570 B1:350 B2:370 B3:470 |
4-10 | 23.2-45.8 |
| A | 600×400 | L1:600 L2:620 L3:720 B1:400 B2:420 B3:520 |
6-12 | 48.8-79.6 |
| A | 800×600 | L1:800 L2:820 L3:920 B1:600 B2:620 B3:720 |
8-14 | 52.4-90.2 |
Certification & Compliance
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Meets ISO 5892 standards
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Complies with CB/T19-2001 requirements
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Optional IACS certifications available
Note: The description might be incorrect, please contact us for confirmation.
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