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.
Type of Marine Deck Scupper
| Type | Name | Nominal Diameter Dg(mm) |
| YA | Round deck drain | 32 ~ 65 |
| YB | Round deck drain with flanged connection pipe | |
| TA | Elliptical deck drain | 80 ~100 |
| TB | Elliptical deck drain with flanged connection pipe | |
| SA | Water-sealed deck drain | 40 ~ 100 |
| SB | Water-sealed shut-off deck drain, bolted type | |
| SC | Water-sealed shut-off deck drain, welded type |
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 |
