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Water Tube Boilers Suppliers
Every commercial vessel with high steam demands relies on robust, high-capacity boilers - and when it comes to performance at scale, water tube designs lead the way. Unlike fire tube units, which send hot gases through tubes surrounded by water, water tube boilers reverse the setup - circulating water through tubes heated externally by combustion gases. The result is faster steam generation, higher pressure capacity, and better heat transfer efficiency.
This makes them ideal for vessels with large thermal loads, such as LNG carriers, crude oil and product tankers, passenger ships, or specialized offshore units. Their modular design also supports easier cleaning, better circulation, and safer operation at sea. Because of their technical complexity and operating pressure, it’s important to work with experienced water tube boilers suppliers who understand the unique marine environment.
How to Choose the Right Water Tube Boiler for Your Vessel
Selecting the right manufacturer is essential when sourcing a high-pressure water tube boiler. These systems must meet strict marine engineering standards while delivering consistent performance under harsh sea conditions. That’s why most shipowners prefer working with proven water tube boilers manufacturers who offer reliable products, certified quality, and global service support.
Some of the most respected names in the industry include:
- Aalborg (Alfa Laval) - Known for their compact, high-capacity marine boilers, especially the Aalborg D-type design.
- Kangrim - A leading Korean manufacturer offering a wide range of boiler solutions tailored to bulkers, tankers, and gas carriers.
- SAACKE - Specializing in boiler systems with efficient burners and automation for emission control.
- Sunflame - Offers auxiliary boilers and burners used in many water tube boiler configurations.
When comparing options, it’s important to evaluate not just output specs, but also lifecycle support, spare parts availability, and integration with your vessel’s automation systems.
Here are a few key factors to consider:
- Steam Load & Pressure Requirements: High-capacity ships like LNG carriers or tankers often require boilers with faster steam production and higher pressure ratings.
- Installation Space & Orientation: Water tube boilers are available in horizontal and vertical configurations, offering flexibility depending on the engine room layout.
- Fuel Type & Burner Compatibility: Consider whether the unit will run on MGO, HFO, dual-fuel, or be used in conjunction with exhaust gas recovery systems.
- Automation & Safety Features: Look for suppliers offering advanced control systems, emergency shutdown logic, and remote monitoring.
- Class & Compliance: Always confirm the boiler complies with IACS class society requirements and international marine standards.
Every vessel has unique steam demands, space constraints, and integration requirements - so working with knowledgeable water tube boilers distributors helps ensure the setup matches your vessel’s pressure and temperature needs, as well as its fuel profile. Whether planning a newbuild or replacing an outdated system, the right supplier will not only help you choose the right equipment - they’ll guide you through classification, documentation, and onboard integration too.
Water Tube Boilers Suppliers on Records Marine
At Records Marine, we’ve built a trusted network of suppliers, manufacturers, and distributors who understand the complexities of marine boiler systems.
Each listed company is reviewed for product reliability, technical expertise, and proven performance in the maritime sector. Whether you're sourcing for a newbuild or retrofitting an existing system, our platform helps you move forward with confidence.
Records Marine brings the decision-making process into one place - clear, efficient, and backed by real-world experience.

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