Heat Exchangers
We successfully refurbished 16 seal oil coolers, which included replacing tubes and overhauling 3-way valves. Each cooler was tested at a pressure of 90 bar, and we applied a specialized anti-corrosive coating on the tube sheet to enhance durability and performance.
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HVAC Chiller Refurbishment
Dolphin completed several projects in HVAC like Manufacture, supply & installation Chiller and
Supply, Installation & commissioning of Condenser coils,Refurbishment of Package Units etc.
HVAC-R
Manufacture, supply and replacement of radiator coils for gas turbines in power plants. The project was of 4 gas turbines consisting of a total 24 radiator coils. The new supplied radiators were coated with anti corrosion coating to protect radiators from harsh coastal environment
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Radiator (New – Refurbish- Upgrade)
We specialize in manufacturing new radiators and refurbishing existing ones to enhance performance. Our heavy-duty cores are custom-designed to meet specific applications, ensuring optimal efficiency. Each radiator is fully assembled with new cores, gaskets, and bolts for superior durability.
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Anti Corrosion Cooling Towers
The refurbishment project replaced high-efficiency oval tube cooling coils in six cooling towers. A specialized anti-corrosion coating was applied to the coils and bottom water tanks, enhancing their performance and extending operational lifespan.
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Retubing
We executed a heat exchanger tube bundle replacement project for the Main Column Trim Condenser during a refinery shutdown. This involves replacing 12 bundles, each with 1,060 CuNi 70/10 tubes, with a completion timeline of 4 weeks. Our goal is to boost efficiency and reliability while minimizing downtime.
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