ASME Vertical Water Tube Coal Fired Boiler 4 Ton with Dual - Rear - Drum

1, Water Tube

2, Dual - Rear - Drum

3, Vertical

4, closed vessel

Description:

The pressure vessel in a boiler is usually made of steel (or alloy steel), or historically of wrought iron. Stainless steel is virtually prohibited (by the ASME Boiler Code) for use in wetted parts of modern boilers, but is used often in superheater sections that will not be exposed to liquid boiler water. In live steam models, copper or brass is often used because it is more easily fabricated in smaller size boilers. Historically, copper was often used for fireboxes (particularly for steam locomotives), because of its better formability and higher thermal conductivity; however, in more recent times, the high price of copper often makes this an uneconomic choice and cheaper substitutes (such as steel) are used instead.
 

Steam boiler is a closed vessel in which water is heated. The heated water exits the boiler for use in various process or heating  applications.

Specifications: