 Get Price Water Tube Boiler: Types, Parts, Working Principles 0000-00-00 · Water Tube Boiler Components. Here is a review of the water tube boiler parts and functions.. Boiler Shell: This shell is the external cylindrical part of a pressure container. Steam drum: It is a collection vessel for steam and water. Mud drum: This is a cylindrical formed space at the base of the water space. It will gather impurities like mud, sediment, and others. Get Price Industrial boiler technology for beginners 0000-0-00 · boiler of this type, filled with water and ready for function, can weigh as much as 000 tons, which corresponds to the weight of 000 VW Golfs. Hot water or steam boilers are relatively similar in design (Figure). The boiler pressure vessel is a horizontal, cylindrical tube 