Stay cool, Sail cool
Keel Coolers
These parts are manufactured by VULKAN COUPLINGS, Germany pioneers in marine drive technology.
Furtermore, VULKAN components are used in powerplant facilities or in industrial applications as well.
VULKAN production program includes following types, most available from the manufacturing site in Germany but some common ones are also available from our warehouse in Moschato:
90/10 Copper - Nickel Keel Cooler
The Enhanced Interior Walled Tubing 90/10 Copper-Nickel Keel Cooler, exclusive to Fernstrum, features a truncated cone pattern inside the tube that boosts heat transfer by up to 30% compared to smooth-walled tubes. This is particularly beneficial for glycol solution applications, potentially reducing the number or size of units needed. The tubing’s interior surface is customized to meet specific cooling requirements. Each keel cooler is torch brazed with 56% silver braze wire, ensuring flexibility and durability. Additionally, these keel coolers are designed for complete isolation from the hull during both installation and operation.
Fernstrum has continually evolved the GRIDCOOLER Keel Cooler’s design to improve efficiency and dependability. The rectangular one-piece header design has fewer joints for improved durability and provides greater flexibility in custom cooling solutions. Its design can be adapted into various configurations and shapes to precisely fit available space and cooling demands.
A typical keel cooler features a rectangular shaped tube bundle. Each copper-nickel keel cooler is torch brazed with 56% silver (content) braze wire to maximize the flexibility and durability of the unit. The higher silver content offers superior corrosion resistance, improving the dependability of the keel cooler and its ability to withstand harsher operating conditions. Critical braze joints are ultrasonically tested as an added measure to ensure the unit’s reliability.
Applications
Marine Applications
Design Specifications
- Stacked GRIDCOOLER Keel Cooler: Reduces footprint while boosting heat transfer, ideal for large engines or limited space.
- Angled Tube GRIDCOOLER Keel Cooler: Optimizes heat transfer for side-mounted or stationary applications, prevents silt buildup.
- Customization Options: Includes bending, twisting, extended nozzles, mounting pads, side venting, and support plates.
Key Benefits
- Eliminates on-board raw water pumps
No need for Seawater Circuit, piping or strainers
- Can operate in icy conditions, silt or polluted waters
- Low maintenance
- There is no sand & silt buildup
Low operational costs
Selection of Materials
Nozzles or Flange: Cu/Ni 90/10
Zinc Anodes & Drain Plugs: Yes
Tubes: Cu/Ni 90/10
Isolation Bushings: Yes
