A D-type steam Boiler is a high-efficiency, water-tube boiler featuring two drums (a steam drum and a mud drum) connected by a series of tubes arranged in a “D”-shaped configuration.
This design allows balanced water and steam circulation, ensuring rapid heat transfer and stable steam generation. The upper steam drum collects dry steam, while the lower mud drum gathers impurities and sediment — maintaining water purity and boiler efficiency.
Known for their compact structure and high thermal efficiency, D-type boilers are ideal for industrial plants, power stations, and marine applications that require continuous high-pressure steam.
High steam output and pressure capability.
Compact footprint for space-limited installations.
Long service life with stable operation under heavy load.
In a D-type steam Boiler, water flows through the curved “D”-shaped tube assembly surrounding the furnace. Hot combustion gases transfer heat directly to the water inside the tubes, converting it into saturated steam.
This efficient layout provides a large heat transfer surface area, minimizing energy losses and reducing start-up time. Continuous monitoring by control systems ensures the process remains safe and stable, even under fluctuating operating conditions.
Water circulates through the tube banks surrounding the furnace.
Heat from combustion is transferred directly to the water.
Steam rises into the upper drum while impurities settle in the lower drum.
Sensors and PLC control systems regulate pressure and temperature.
D-type water-tube boilers are used across various industries where high-pressure, high-volume steam is required. Their robust design and efficient performance make them a reliable choice for demanding environments.
Power plants: Continuous high-pressure steam generation.
Petrochemical refineries: Process heating and reactor applications.
Food & beverage industry: Sterilization, cooking, and drying lines.
Marine sector: Ship propulsion and auxiliary systems.
Textile and paper industry: Drying, finishing, and steam pressing.
The D Type design offers a unique combination of efficiency, reliability, and adaptability. With rapid start-up and low fuel consumption, it’s one of the most cost-effective boiler options for industrial users.
High efficiency: A large heat transfer surface area for maximum energy utilization.
Quick start-up: Achieves operating pressure within minutes.
Compact design: Ideal for limited installation spaces.
Low fuel consumption: Optimized combustion system.
Long lifespan: Heavy-duty steel construction and durable tubing.
Safe operation: Automated monitoring and multi-level protection systems.
Ekotek Heat Technologies designs and manufactures D-type steam boilers for power generation, industrial processing, and marine use.
All Ekotek boilers are constructed in accordance with European standards, ensuring long-term efficiency, safety, and reliability.
Certified manufacturing (CE, ISO, TSE).
High-efficiency combustion and heat-transfer systems.
PLC-controlled automation panels.
Marine-grade and custom design options available.
Complete technical service and spare parts support worldwide.
D Type boilers are water-tube systems built for generating high-pressure steam, whereas fire-tube boilers are suitable for lower-pressure uses. Water-tube models such as the D Type provide quicker startup times and greater efficiency.
Ekotek D Type boilers can operate on natural gas, diesel, fuel oil, or a combination of these fuels through dual-fuel systems. Optional electric heating elements can also be integrated for hybrid operation.
Thanks to its efficient heat-transfer design, the boiler typically reaches full operating pressure within 15–25 minutes, ensuring minimal downtime.
Not at all. Ekotek’s D-type boilers feature easy-access inspection doors and automated control systems, simplifying regular maintenance and extending equipment life.
Their compact shape, high vibration tolerance, and low fuel consumption make them perfect for ships and offshore platforms that require reliable and efficient steam systems.
All models are built in compliance with CE, ISO, and TSE standards. Marine-class certified versions are available upon request.
WhatsApp Quick Contact