Water tube boiler
These boilers are designed to produce steam. Of course, in cases where high-pressure steam is required to be produced, water-fired steam boilers are preferred over high-pressure boilers in terms of capacity and operation at very high pressures. Watertight boilers are designed and constructed with capacities from 1 to 200 tons per hour, with a steam capacity of 1 to 100 atmospheres. These boilers also use power plants, refineries, petrochemical plants, heavy industries and large factories in addition to boilers used for fireworks.