Marine - Dolphin Group

Dolphin carries out all kind of marine jobs onboard and off-board. We provide new solutions for existing problems and also service jobs. In some marine Applications, freshwater system is used. For that shell and tube type Heat Exchangers are used. Also, Plate Heat exchangers are used if space is a constraint. Dolphin provides you both solutions as per your requirement. For seawater application, corrosion-resistant materials must be used. We also provide Heat exchangers for seawater applications too. We also do the HVAC related jobs on board.

Main Engine Lube Oil Cooler

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Main Engine Fresh Water Cooler

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Fresh Water Generator Evaporator & Condenser

Refurbishment of the unit
Cleaning, pressure testing and Retubing of Evaporator and condenser
We also do water drilling on blocked tubes

Atmospheric / Dump Condenser

When a steam condenser needs to be repaired, some or all of the tubes can either be replaced or the blocked tubes can be cleared. We have facilities to replace the bundle itself including tube plates (Naval brass). We undertake the machining of tube sheet with modern machinery and also guarantee the completion of the job in the proposed time.

Tube in Tube Condensers

The Tube-in-Tube is sometimes called a double pipe or coaxial condenser. Its name reflects its design. A tube is placed within a larger tube and the ends of the larger tube are sealed. Water is circulated through one of the tubes, while the refrigerant flows through the other.

Fuel Oil Heater

Tube Coil Replacement
Shell Replacement
New Manufacturing
Cleaning (Chemical Or USC System)
Pressure Testing
Insulating And Cladding

Friction Materials

Our wide range of products satisfies the needs for brakes for most medium and heavy vehicles in almost any specific Brake design. We offer several frictional material formulations- including mineral and semi metallic formulas, all environments friendly. Brake Linings and blocks are designed for heavy vehicles, buses and trucks. All these are engineered to provide a high level of friction, stability in wide temperature ranges and resistance to fading.

Steam Heater

Partial Re-Tubing
Re-Tubing
Material – Copper/Nickel Or Aluminum Brass
Tube sheet Replacement (Naval Brass)
Cleaning – Tube Side – High Pressure Wave Lancing Shell Side – Chemical Circulation
Pressure Testing
Insulation & Cladding

COPT / Vaccum Condenser

Re-tubing, cleaning of tubes internally with high pressure water jetting, using flexible lance
Specialized tools for Re-tubing without disturbing the tube sheet and baffles
Materials commonly used are Aluminum, Brass, Copper, Nickel and Duplex Alloy Tubes

LPG & LGO Cargo Heater:

Tube Renewal
Tube Side Cleaning (High Pressure Water Jet Cleaning)
Shell Dise Chemical Cleaning
Plugging (Tig Welding)
Manufacturing a complete new unit

Box Coolers

Main Engine Air Cooler

Aux. Engine LO Purifier Heaters