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10SEA WATER, COOLING & WET EXHAUST SYSTEMS

Sea water, cooling & wet exhaust systems

New installation, revision, custom fabrication and leak detection on sea inlets, seacocks and strainers, air-conditioning and generator cooling circuits, discharge lines and wet exhaust connections.

  • Seacock & strainer
  • A/C sea water
  • Generator cooling
  • Wet exhaust
  • Cu-Ni
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Illustration: technician checking a sea water strainer in the engine room, with the wet exhaust line behind.
10SEA WATER, COOLING & WET EXHAUST SYSTEMS

We assess the entire line — from where sea water enters the hull to where it leaves overboard — for safety, flow and serviceability.

01Which problems do we solve?

  • Is the air-conditioning or generator not cooling enough?
  • Does the strainer fill up quickly or is suction weak?
  • Is a seacock seized or not closing fully?
  • Is the wet exhaust leaking water or gas?
  • Is there corrosion or seepage on sea water lines?
  • Is too little water coming out of the generator exhaust?

We determine whether the problem lies in the intake, strainer, pump, heat exchanger, line size and routing, or exhaust connections — and apply a lasting fix.

02Scope of service

Sea water, cooling & wet exhaust systems

New installation, revision, custom fabrication and leak detection on sea inlets, seacocks and strainers, air-conditioning and generator cooling circuits, discharge lines and wet exhaust connections.

  • Sea inlets
  • Seacocks
  • Hull fittings
  • Sea chests
  • Sea water strainers
  • Sea water manifolds
  • Air-conditioning sea water circuits
  • Generator cooling water lines
  • Auxiliary cooling lines
  • Discharge and overboard lines
  • Wet exhaust lines
  • Mixing elbow connections
  • Waterlocks
  • Muffler connections
  • Exhaust hoses
  • Exhaust jackets
  • Custom fabrication

Cu-Ni experience

  • Cu-Ni sea water lines
  • Cu-Ni bilge lines
  • Cu-Ni fire lines

Materials for sea water systems are selected for corrosion, galvanic compatibility, flow velocity and service life.

03How does the system work?

From the intake to overboard.

  1. 01Seacock
  2. 02Strainer
  3. 03Sea water pump
  4. 04Heat exchanger / A/C / generator
  5. 05Mixing elbow
  6. 06Waterlock
  7. 07Muffler
  8. 08Overboard

Cooling circuit capacity and exhaust routing are considered together; on engine and generator exhausts the waterlock and line height are critical to keep water from flowing back.

04Our service approach

“Sea water lines enter below the waterline — they must never be neglected.”

We assess the sea water system as a whole — from seacocks and hull fittings to strainers, pumps and heat exchangers, and on to the discharge and wet exhaust line. Material choice, line size, routing, valve access and tightness directly affect both cooling performance and the safety of the boat.

05Service process

From survey
to service report.

Our goal is not just to get a system running again, but to hand it over correct and serviceable.

  1. 01

    System check

    Seacocks, strainers, pumps, heat exchangers, lines and exhaust connections are checked.

  2. 02

    Diagnosis

    The source of suction, flow, corrosion, leak or exhaust problems is identified.

  3. 03

    Solution plan

    Line renewal, valves, strainers, manifolds or exhaust revision are defined.

  4. 04

    Implementation

    Piping, custom fabrication, installation and connection work are carried out.

  5. 05

    Test & handover

    Flow, temperature, tightness and exhaust water discharge are checked.

06Systems / brand examples

We work on valves, strainers, pumps, heat exchangers and exhaust equipment from different manufacturers, following manufacturer documentation.

07Real applications

All projects
  • Sarp — Cu-Ni bilge, fire and sea water systems (2014–2015)
  • Proteksan Turquoise — marine piping and engine room work in mega yacht production (2007–2010)
  • Sea water, cooling and wet exhaust lines on refit and new-build projects

08Frequently asked questions

Good
questions.

Can’t find your answer? Just tell us the system and the marina.

Ask a question
When should the sea water strainer be cleaned?

It depends on usage and the water you are in; a visual check before each trip and regular cleaning during the season are recommended. When the A/C or generator loses cooling, the strainer is one of the first things to check.

Why check seacocks regularly?

A seacock is an opening below the waterline; a seized or corroded valve may not close in an emergency. Operating them regularly and checking them on the hard are recommended.

What is checked on a wet exhaust line?

Mixing elbow, exhaust hoses, clamps, waterlock, muffler, line height and the overboard outlet — water or gas leaks and the risk of water flowing back into the engine are assessed.

Next step

Let’s check your sea water and exhaust lines safely.

Tell us the symptom, the equipment (A/C, generator, engine) and where the boat is; we’ll share an inspection plan.

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