Marine Scupper
Marine Scupper is a drainage device designed for removing rainwater, seawater, and other liquids from ship decks and marine structures.
Installed on ship decks, superstructures, and offshore platforms, Marine Scupper provides an efficient drainage solution to prevent water accumulation and maintain safe operating conditions.
The scupper system allows water collected on the deck surface to flow safely through piping or overboard discharge systems.
Marine Scupper is widely used in:
Main deck drainage systems
Weather deck drainage systems
Passenger ship decks
Cargo ship decks
Offshore platforms
Marine engineering structures
Overview
Working Principle of Marine Scupper
Marine Scupper works as a drainage connection between the ship deck surface and the drainage pipeline system.
The operating process:
Rainwater or seawater collects on the deck surface.
Water flows into the scupper inlet.
The scupper guides water into the drainage pipe.
The drainage system discharges water safely overboard or into collection tanks.
The structure prevents water accumulation on deck areas.
Main Components of Marine Scupper
| Component | Function |
|---|---|
| Scupper Body | Main drainage structure connecting deck and pipe |
| Flange | Provides connection with deck or pipeline |
| Drain Outlet | Allows water discharge |
| Grating / Cover | Prevents large objects entering drainage system |
| Sealing Gasket | Ensures watertight connection |
| Fasteners | Secure installation |
| Pipe Connection | Connects with drainage piping system |
Applicable Standards of Marine Scupper
| Standard Category | Applicable Standards |
|---|---|
| Marine Scupper Standard | CBM 1068-81 |
| Shipbuilding Industry Standard | CB/T 3855-2014 |
| Marine Equipment Standards | CB/T Series Marine Fittings |
| Flange Standards | GB/T 2501, CB/T Marine Flange Standards |
| Material Standards | GB, ASTM, JIS, EN Material Standards |
| Classification Requirements | CCS, ABS, DNV, LR, BV |
Material Selection of Marine Scupper
| Material | Features | Applications |
|---|---|---|
| Cast Iron | Good strength and economical cost | General ship drainage systems |
| Bronze | Excellent seawater corrosion resistance | Marine deck applications |
| Brass | Good corrosion resistance and machinability | Small drainage fittings |
| Stainless Steel | Superior corrosion resistance and appearance | Offshore and passenger vessels |
| Aluminum Alloy | Lightweight and corrosion resistant | Aluminum ships and structures |
| Steel | High mechanical strength | Heavy-duty marine applications |
Common Material Standards
| Material | Standard |
|---|---|
| Cast Iron | GB/T 9439 |
| Bronze | GB/T 1176 |
| Stainless Steel | ASTM A351 / EN 1.4408 |
| Aluminum Alloy | GB/T 1173 |
| Carbon Steel | ASTM A216 WCB |
Technical Specifications of Marine Scupper
| Item | Specification |
|---|---|
| Product Name | Marine Scupper |
| Type | Ship Deck Drainage Fitting |
| Function | Deck Water Drainage |
| Standard | CBM 1068-81 / CB/T 3855-2014 |
| Application Medium | Rainwater, Seawater, Wastewater |
| Installation Position | Ship Deck, Superstructure, Offshore Structure |
| Connection Type | Flanged / Welded Connection |
| Material | Bronze / Stainless Steel / Cast Iron / Steel |
| Surface Treatment | Anti-corrosion Coating / Polishing |
| Application | Marine and Offshore Drainage Systems |
Pressure / Performance Test of Marine Scupper
| Test Item | Description |
|---|---|
| Dimensional Inspection | Verify compliance with drawings and standards |
| Material Inspection | Confirm material specification |
| Watertight Test | Check sealing performance |
| Strength Inspection | Verify mechanical durability |
| Surface Inspection | Check corrosion protection and finish |
| Final Inspection | Ensure shipment quality |
Advantages of Marine Scupper
| Feature | Benefit |
|---|---|
| Marine Standard Design | Suitable for shipbuilding applications |
| Efficient Drainage | Prevents deck water accumulation |
| Corrosion Resistant Materials | Suitable for seawater environments |
| Simple Installation | Easy connection with deck drainage systems |
| Durable Construction | Long service life onboard vessels |
Typical Applications
| Application | Function |
|---|---|
| Cargo Ship Deck | Removes rainwater and seawater |
| Container Ship | Deck drainage |
| Tanker Vessel | Prevents water accumulation |
| Passenger Ship | Maintains deck safety |
| Offshore Platform | Surface water removal |
| Marine Structures | Drainage protection |
