Deck and accommodation drain / scupper system

Oil tankers

Chemical tankers

LNG carriers

LPG, ethylene, ethane, ammonia, CO2, hydrogen and gas-bunkering carriers

Bulk carriers and specialised dry-bulk carriers

General and specialised break-bulk cargo ships

Multipurpose, open-hatch, deck, heavy-lift and heavy-transport ships

Container ships

Ro-ro cargo and vehicle carriers

Refrigerated cargo ships

Fishing vessels, factory trawlers and live-fish carriers

Cruise and passenger ships

Ro-ro passenger ferries

PSV, AHTS, OSV/SOV and CTV

Cable, pipe, diving, subsea construction, WTIV and intervention vessels

Drillship, FPSO, FSO, FSU, FLNG and FSRU

Dredgers and hopper dredgers

Tugs, ERRV/standby, pilot and search-and-rescue craft

Research, hydrographic, seismic and icebreaking vessels

Large yachts and superyachts

Patrol and government service vessels

Deck scuppers

The deck drains carrying rain and shipped water off the decks and over the side.

Drain piping and traps

The piping and water traps carrying accommodation and deck drainage away without letting odours or gas travel back up.

Drain collecting tanks

Tanks collecting drainage that may not be discharged directly, holding it for treatment or disposal.

Drain transfer pumps

Pumps emptying the drain collecting tanks to treatment, storage or shore.

Oil-contaminated drain segregation

The arrangement keeping possibly oily drains — such as from the cargo manifold area — separate from clean deck drainage.