I. Product Function
1. A dedicated sealed partition component for ship decks, cabins, and offshore platform compartments, designed to achieve watertight compartment separation, block the spread of seawater when flooding occurs, and ensure vessel safety;
2. Suitable as a watertight access door for cabin passages of inland cargo vessels, ocean-going vessels, workboats, offshore wind power platforms, and sewage treatment vessels;
3. Used for waterproof partitioning in ballast tanks, equipment rooms, engine room corridors, and crew accommodation cabins, meeting both personnel passage and watertight sealing requirements;
4. Can be supplied together with marine stainless steel fasteners, marine flanges, and complete marine piping and cabin supporting components.
II. Specification and Standard Parameter Table
Parameter Item | Production Range / Optional Type |
Applicable Standard | CCS China Classification Society standards, GB marine watertight door specifications, and CB marine cabin door standards |
Appearance Type | Rectangular rounded-corner watertight door, single-leaf manual opening and closing type |
Common Sizes | Standard passage sizes: 600×400, 700×500, 800×600, 900×700; length and width can be customized as required |
Door Panel Material | Q235 carbon steel with anti-corrosion coating, 304 / 316L stainless steel |
Locking Mechanism | Manual linkage multi-point compression locking mechanism, with synchronized compression on both sides |
Sealing Accessories | Seawater-resistant aging-resistant rubber watertight sealing strip |
Surface Treatment | Epoxy anti-corrosion coating for carbon steel; pickling and passivation for stainless steel |
Pressure Rating | Meets watertight pressure-bearing requirements corresponding to vessel draft depth |
Matching Fasteners | Complete supply of 316L stainless steel bolts, U-bolts, flat washers, and spring washers |
III. Material Application Scenarios
1. Carbon steel anti-corrosion coated watertight doors: suitable for inland freshwater vessels, inland sewage treatment vessels, and cabins without high salt spray exposure;
2. 304 stainless steel watertight doors: suitable for nearshore and coastal vessels, as well as auxiliary compartments of offshore platforms;
3. 316L stainless steel watertight doors: suitable for ocean-going vessels and deep-sea drilling platforms, providing long-term resistance to high-salinity seawater corrosion.
IV. Product Advantages
1. The multi-point synchronized linkage locking structure evenly compresses the sealing strip around the door panel after closing, delivering strong watertight sealing performance and preventing seawater ingress from outside the compartment;
2. The rounded-corner door panel structure eliminates sharp stress points, reducing stress cracking caused by vessel vibration during navigation and extending service life;
3. The seawater-resistant rubber sealing strip features aging resistance and salt corrosion resistance, and is not prone to deformation or leakage after long-term exposure or immersion;
4. Available in both carbon steel and stainless steel materials, suitable for different working conditions of inland and ocean-going vessels, and compliant with CCS vessel inspection requirements;
5. Complete marine stainless steel fasteners can be supplied, forming a unified anti-corrosion system and avoiding hidden risks of local rusting and leakage;
6. The manual operating structure is simple and reliable, allowing quick opening and closing even under power failure or extreme cabin conditions, with convenient maintenance.