Marine Portlights – Heavy-Duty Watertight Portholes for Ships
Certified Circular Windows for Harsh Marine Environments
Our marine-grade portlights (portholes) provide watertight security and durable performance for vessel hulls, superstructures, and deckhouses. These SOLAS-compliant circular windows feature solid construction with reinforced storm protection to withstand extreme sea conditions.
Key Features & Benefits
✔ Complete Watertight System:
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Main frame (bolted or welded installation)
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Tempered glass (5x stronger than standard)
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Deadlight cover (emergency seawater protection)
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Storm shutter (heavy-duty impact resistance)
✔ Marine-Grade Materials:
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316 stainless steel components (standard)
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Marine bronze options available
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Neoprene gaskets (long-lasting seal)
✔ Safety Certified:
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Meets IMO safety standards
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Classification society approvals available
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Pressure tested for watertight integrity
Technical Specifications
Standard Size Chart
| Clear Size (φ mm) | D1 | D2 | D3 | D4 | h | t | gmax | Bolt | Cutout |
|---|---|---|---|---|---|---|---|---|---|
| φ200 | φ245 | φ250 | φ350 | φ310 | 155 | 8 | 50 | M12 | 253 |
| φ250 | φ295 | φ305 | φ400 | φ364 | 182 | 8 | 47.5 | M16 | 308 |
| φ300 | φ350 | φ360 | φ450 | φ414 | 207 | 10 | 45 | M16 | 363 |
| φ350 | φ400 | φ410 | φ500 | φ464 | 232 | 12 | 45 | M18 | 413 |
| φ400 | φ450 | φ460 | φ550 | φ514 | 257 | 12 | 45 | M18 | 463 |
| φ450 | φ500 | φ510 | φ600 | φ564 | 282 | 15 | 45 | M20 | 513 |
The description/sizes may be different with goods, please check with us when order.
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