What Is The Difference Between Fire Tube Boiler and Water Tube Boiler

2016-05-13

When determining a boiler for your project, there are a number of considerations like operation pressure, rated steam capacity, water output, application and the boiler cost, etc. There are two main boiler types that you can choose from for your specific application: water tube boilers and fire tube boilers, the two are essentially opposite in design.

Fire Tube Boilers VS Water Tube Boilers

Design Structure: In a water tube boiler, water travels through tubes which are surrounded by the by-products of combustion, or flue gas. In a fire tube boiler, the flue gas travels through the tubes, which are surrounded by hot water.

Capacity/Output: Usually the boiler output mainly depends on design limits. For the fire tube boiler, like our WNS series gas & oil fired boiler is 1 ton -2o ton, however, the water tube boiler usually has a very large capacity, some companies can manufacture 500 ton boilers.

Fuel: As we know, almost all the large type boilers are water tube type, any fuel is available, including the waste heat, MSW, low grade coal or other possible fuels. On both fire tube and water tube boiler various types of fuels can be used for providing the heat.

Efficiency: Normal efficiency of the fire tube boiler is about 80 to 85 % but this can be increase or decrease by using different a accessories. Efficiency of the water tube boiler is more than that of fire tube and lies within the range of 85 to 90 %. efficiency of water tube boiler can also be increased by using different accessories.

fire tube boilers, water tube boilers

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