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| Quantity: | |
|---|---|
DF-5005-510
HEE
DF-5005-510 RAISED MULTI-BOLT CLEAN OUT HATCH
MODEL NO. | ΦA | B | C | D | WT.(lbs) |
| DF-5005-510 | 560 | 520 | 45 | 470 | 90 |
| NO. | Name & Specifications | Qty | Material |
| 1 | COVER | 1 | STEEL |
| 2 | GASKET | 1 | Buna-N |
| 3 | COAMING | 1 | STEEL |
Leakage test: Pressure 0.04MPa
Other optional extras include: hot dipped galvanized, stainless steel construction, and customing heights
We are a professional ISO 9001 certified manufacturer specializing in high-performance marine hatch covers. Our bolted circular manhole cover is engineered to meet the stringent requirements of maritime vessels, offshore platforms, and industrial pressure vessels. Featuring a robust bolted fastening system, this cover delivers superior pressure resistance and airtight/watertight sealing, making it an ideal choice for critical access points on cargo ships, tankers, ballast tanks, and storage tanks.
Marine Vessels: Cargo ships, bulk carriers, oil tankers, fishing vessels, passenger ships, and naval ships. Specifically used in cargo holds, engine rooms, ballast water tanks, fuel oil tanks, and fresh water tanks.
Offshore Engineering: FPSO units, offshore drilling platforms, wind farm installation vessels, and marine diesel engine compartments.
Industrial Pressure Vessels:Chemical storage tanks, reaction kettles, sewage treatment tanks, and large-scale pressure pipeline maintenance hatches.
1.Bolted Fixed Design for Maximum Safety
Uniform locking via high-strength stainless steel bolts (316L grade) ensures stable pressure distribution and reliable sealing under extreme sea conditions or internal pressure differentials.
Anti-corrosion bolts prevent seizing, ensuring smooth operation during maintenance.
2.Superior Sealing Performance
Precision-machined sealing surface paired with premium NBR/EPDM rubber gasket provides Watertight (IP68) and Oiltight protection, complying with IMO SOLAS standards.
Prevents seawater intrusion, oil leakage, and gas emission, ensuring operational safety.
3.Premium Material Construction
Main Body: High-grade carbon steel or marine-grade stainless steel (304/316L) for high strength and corrosion resistance.
Surface Treatment: Dual-layer anti-corrosion coating (epoxy zinc-rich primer + polyurethane topcoat) with salt spray resistance exceeding 1000 hours, suitable for harsh marine environments.
4.Global Certifications & Customization
Full compliance with ISO 9001, and available with CCS, ABS, DNV, LR, BV certifications.
Customizable dimensions (DN400-DN1500), pressure ratings, and surface treatments to match specific project requirements.
One-Stop Solution: From design consultation to production, testing, and global delivery, we provide a full lifecycle service.
Fast Delivery: Standard inventory for quick shipment; customized orders available with flexible lead times.
Cost-Effective: Factory direct pricing, eliminating middlemen margins while maintaining premium quality.
