Marine Deck Scupper
Marine Deck Scupper is a shipboard drainage fitting installed on vessel decks to collect and discharge rainwater, seawater, and other surface liquids.
Designed for marine deck drainage systems, the scupper provides a reliable connection between the deck surface and drainage pipelines, helping prevent water accumulation and maintaining safe working conditions onboard.
Marine Deck Scupper is commonly installed on:
Main decks
Weather decks
Cargo decks
Open decks
Superstructures
Offshore platforms
Overview
Working Principle of Marine Deck Scupper
Marine Deck Scupper works as a drainage passage that transfers water from the deck surface into the ship drainage system.
Operating Process:
Rainwater or seawater accumulates on the deck surface.
Water enters through the scupper opening.
The scupper body guides water into the connected drainage pipe.
Water is discharged overboard or transferred to the drainage system.
The deck surface remains free from standing water.
Main Components of Marine Deck Scupper
| Component | Function |
|---|---|
| Scupper Body | Main drainage passage structure |
| Deck Flange | Connects scupper with deck surface |
| Outlet Pipe Connection | Connects to drainage piping |
| Drain Opening | Allows water entry |
| Cover / Grating | Prevents debris from entering |
| Sealing Gasket | Ensures watertight installation |
| Mounting Bolts | Secures installation |
| Coating Layer | Provides corrosion protection |
Applicable Standards of Marine Deck Scupper
| Standard Category | Applicable Standards |
|---|---|
| Marine Scupper Standard | CBM 1068-81 |
| Shipbuilding Industry Standard | CB/T 3855-2014 |
| Marine Pipe Fittings | CB/T Series Standards |
| Flange Standards | GB/T Marine Flange Standards |
| Material Standards | GB, ASTM, EN, JIS Material Standards |
| Classification Requirements | CCS, ABS, DNV, LR, BV |
Material Selection of Marine Deck Scupper
| Material | Features | Applications |
|---|---|---|
| Bronze | Excellent seawater corrosion resistance | Marine deck drainage systems |
| Stainless Steel | High corrosion resistance and durability | Passenger ships, offshore vessels |
| Cast Iron | Good strength and economical solution | General cargo vessels |
| Cast Steel | High mechanical strength | Heavy-duty applications |
| Aluminum Alloy | Lightweight and corrosion resistant | Aluminum vessels |
| Brass | Good corrosion resistance and machinability | Small marine fittings |
Common Material Standards
| Material | Standard |
|---|---|
| Bronze | GB/T 1176 / ASTM B62 |
| Stainless Steel | ASTM A351 CF8M / EN 1.4408 |
| Cast Iron | GB/T 9439 |
| Aluminum Alloy | GB/T 1173 |
| Carbon Steel | ASTM A216 WCB |
Technical Specifications of Marine Deck Scupper
| Item | Specification |
|---|---|
| Product Name | Marine Deck Scupper |
| Type | Ship Deck Drainage Fitting |
| Function | Surface Water Drainage |
| Applicable Standard | CBM 1068-81 / CB/T 3855-2014 |
| Medium | Rainwater, Seawater, Drainage Water |
| Installation Location | Ship Deck, Weather Deck, Cargo Deck |
| Connection Type | Flanged / Welded |
| Material Options | Bronze, Stainless Steel, Cast Iron, Steel |
| Surface Treatment | Anti-corrosion Coating / Polishing |
| Application | Marine & Offshore Drainage Systems |
Performance Test of Marine Deck Scupper
| Test Item | Description |
|---|---|
| Dimensional Inspection | Ensures compliance with drawings and standards |
| Material Inspection | Confirms material quality and specification |
| Watertight Test | Verifies sealing performance |
| Strength Inspection | Checks mechanical durability |
| Surface Inspection | Confirms corrosion protection |
| Installation Inspection | Ensures proper fitting dimensions |
Advantages of Marine Deck Scupper
| Feature | Benefit |
|---|---|
| Marine Standard Design | Suitable for shipbuilding requirements |
| Efficient Drainage Structure | Quickly removes deck water |
| Corrosion Resistant Material | Suitable for seawater environment |
| Multiple Connection Options | Flexible installation |
| Durable Construction | Long service life onboard |
| Application | Function |
|---|---|
| Cargo Ship Deck | Removes rainwater and seawater |
| Container Ship | Maintains dry deck conditions |
| Bulk Carrier | Deck drainage protection |
| Tanker Vessel | Prevents surface water accumulation |
| Passenger Ship | Improves passenger safety |
| Offshore Platform | Removes rain and seawater |
