Plate Heat Exchangers (PHE)

Plate Heat Exchangers (PHE)

We provides plate heat exchanger cleaning (PHE cleaning) that restores performance with minimal operational disruption. We help shipowners, shipyards and industrial operators get back reliable cooling and heat transfer, quickly and safely.

  • Evaluate fouling type and severity.
  • Select appropriate method tailored to specific fouling conditions.
  • Safely disassemble the PHE.
    Inspect plates and gaskets for wear or damage.

Perform chemical cleaning with NGP Marine Fluid, a professional-grade, biodegradable cleaning solution designed specifically to remove:

  • Rust and oxides
  • Mineral scale (lime)
  • Salts
  • Algae and biological deposits

Marine Fluid is formulated with mild acids, providing a powerful yet safe cleaning action. It effectively dissolves deposits without damaging metal surfaces or components, although caution is required as it may corrode galvanized or zinc-treated surfaces.

Following chemical treatment, high-pressure water rinsing thoroughly removes loosened deposits and residual chemicals, leaving plates clean and fully functional.

  • Reassemble the heat exchanger using new gaskets as needed.
  • Conduct integrity and performance tests to confirm restored efficiency and operational readiness.
Plate Heat Exchanger and CIP unit ready for flushing
Plate Heat Exchanger upclose during service
CIP Unit during cleaning cleaning with Marine Fluid
CIP unit collecting inpurities during cleaning with NGP products
CIP unit during clean water flushing after cleaning
Cleaned Plate Heat Exchanger

We provides plate heat exchanger cleaning (PHE cleaning) that restores performance with minimal operational disruption. We help shipowners, shipyards and industrial operators get back reliable cooling and heat transfer, quickly and safely.

  • Evaluate fouling type and severity.
  • Select appropriate method tailored to specific fouling conditions.
  • Safely disassemble the PHE.
    Inspect plates and gaskets for wear or damage.

Perform chemical cleaning with NGP Marine Fluid, a professional-grade, biodegradable cleaning solution designed specifically to remove:

  • Rust and oxides
  • Mineral scale (lime)
  • Salts
  • Algae and biological deposits

Marine Fluid is formulated with mild acids, providing a powerful yet safe cleaning action. It effectively dissolves deposits without damaging metal surfaces or components, although caution is required as it may corrode galvanized or zinc-treated surfaces.

Following chemical treatment, high-pressure water rinsing thoroughly removes loosened deposits and residual chemicals, leaving plates clean and fully functional.

  • Reassemble the heat exchanger using new gaskets as needed.
  • Conduct integrity and performance tests to confirm restored efficiency and operational readiness.

Restoring Efficiency and Extending Equipment Lifespan

A plate heat exchanger is one of the most critical components in your cooling and heating system. When fouling builds up, performance drops fast: temperatures become unstable, energy consumption increases, and the risk of alarms, trips and unplanned downtime goes up.

Why customers choose NGP for PHE cleaning

More uptime, less risk

We restore capacity and stable temperatures, helping you avoid overheating, operational limitations and unplanned stoppages.

Lower operating cost

A clean PHE typically means improved flow and heat transfer, which reduces strain on pumps and equipment and can lower overall energy use.

Protect your assets

Removing deposits helps reduce corrosion risk, improves system stability and supports longer service life for exchangers and connected components.

Fits your schedule

We plan around shutdowns, docking windows and maintenance stops. Scope can be scaled from a single exchanger to large multi-unit campaigns.

Safer chemistry, simpler compliance

NGP uses environmentally responsible, non-toxic and non-flammable cleaning solutions designed for marine and industrial maintenance. This supports safer handling for crews and yards and helps simplify compliance where discharge requirements apply.

Documented results

You receive a clear service report with findings and recommendations, so you can plan next actions and preventive maintenance with confidence.

What we clean

We clean plate heat exchangers used in:

  • Central cooling systems
  • Seawater and freshwater circuits
  • Engine and gearbox plate coolers
  • HVAC and process cooling loops
  • Industrial heat exchange applications

We target the deposits that reduce performance, such as scale, corrosion products, biofilm and marine growth.

One partner for single units and large campaigns

Whether you have one PHE that is underperforming or a full package that needs attention during docking, NGP can support your scope. We regularly execute multi-unit campaigns and deliver the same outcomes every time: improved performance, reduced operational risk and clear documentation.

When should you book PHE cleaning

Typical signs you should act:

  • Reduced cooling or heating capacity
  • Higher temperatures than normal
  • Increasing differential pressure or flow restrictions
  • Unstable temperatures or recurring alarms
  • Fouling that returns too quickly after previous maintenance

Improve PHE efficiency

Send us your inquiry for plate heat exchanger cleaning. We dissolve rust, scale and biofilm and verify performance through full post cleaning testing.

See some of our Plate Heat Exchanger refferences

Hydroniq coolers after chemical cleaning

RFA Proteus

Complete dismantling, cleaning and reinstallation of 14 rack and 2 pleat coolers aboard RFA Proteus, including replacement of bolts, gaskets and suction pipes.

Lurssen-Shackleton

Shackleton

Chemical cleaning of 12 Hydroniq rack coolers on superyacht Shackleton in Hamburg. Fast and efficient with NGP Rack Cleaner and strong yard support.