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W4 Diesel Water Cooled Compressors

Product details

  • Autonomous Marine Power: Driven by a powerful 40 hp diesel engine, this unit provides high-pressure air independence for naval and military operations where electricity is unavailable.

  • Superior Water Cooling: Engineered with a Fresh/Seawater Cooling System to operate continuously in the hardest environments where standard air cooling is insufficient.

  • Corrosion Defense: Features stainless steel intercooler heat exchangers and cathodic protection to withstand harsh marine salinity and prevent galvanic corrosion.

  • High-Pressure Performance: Delivers a displacement capacity of 625 l/min at a working pressure of 310 bar, utilizing a robust 4-stage compression cycle.

  • Pressurized Lubrication: Equipped with an active oil pump, oil filter, and oil pressure switch system, ensuring reliable lubrication under heavy loads compared to splash systems.

  • Operational Visibility: Comes standard with a full suite of analog gauges, including stage pressure, oil pressure, and cooling water pressure gauges.

W4 Diesel Water Cooled Compressors

The W4 Diesel Water Cooled compressor is a specialized heavy-duty machine designed for military, naval, and civil defense applications. Combining the mobility of a diesel drive with the thermal stability of water cooling, it is ideal for satisfying compressed air requirements in environments where air cooling is not possible or sufficient.


The unit features a 4-stage design capable of 310 bar output. It is built for rugged durability, featuring an electrostatic painted chassis, shock mounts, and comprehensive protection against seawater corrosion, making it a critical asset for surface ships and submarines.


Model Variant: W4 Diesel (Water Cooled)
  • Working Pressure: 310 bar (4500 psi).

  • Displacement Capacity: 625 l/min (37.5 m³/h / 22 cfm).

  • Motor Power: 40 hp (Diesel).

  • Speed: 750 rpm.

  • Compressor Design: 4 Stages / 3 Cylinders.

  • Weight: 850 kg.

  • Dimensions (W x L x H): 89 cm x 173.5 cm x 96 cm.


Standard Features & Configuration
  • Cooling: Fresh/Seawater Cooling System; Intercooler heat exchangers (stainless); Cathodic Protection.

  • Separation: 1st, 2nd, 3rd, and 4th Stage Water Separator.

  • Lubrication: Oil Pump; Oil Pressure Switch; Oil Filter.

  • Instrumentation: Stage Pressure Gauges, Oil Pressure Gauges, Cooling Water Pressure Gauges.

  • Safety: Safety Valve for Each Stage; Check Valve; Water Pressure Switch.

  • Automation: Automatic Start / Stop; Automatic Drain.

  • Structure: Electrostatic painted chassis with Shock Mounts.

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