Firetube Boilers and Watertube Boilers

Firetube Boilers: Firetube boilers are also know as shell boilers. These boilers are the most commonly used boilers in the market. In the firetube or shell boilers the water is surrounded by the water. The water which surrounds the shell or firetube is heated by sending the hot gases or fire which is produced by the burner through the shell or firetube. The hot gases or fires are allowed four times through the tubes in the boiler before letting the out of the boilers. These tubes are generally set at the banks of the boilers. The firetube boiler systems can release up to 25,000lbs or 750hp of steam per hour. About 80% of the boilers that are in use today belong to this particular category.

Watertube Boilers: In the Watertube Boilers the tubes are arranged vertically in the shell. Then the water is filled in the shell which is heated by sending the hot fuel or hot gases through the tubes. Generally Watertube boilers are built in rectangular shape with two or three drums. The drums are arranged at the top and bottom, where top drum is used to separate water and steam and the bottom drum is used to collect he sludge. Watertube boilers are usually utilized when more than 750hp of steam per hour is required.

The temperature generally rises up to 212 degree Fahrenheit when the fuels or hot gases released into the boiler from the burner which heats up the water. At this temperature the water converted to the steam. The steam generated is then circulated throughout the building or home using radiators, vents and pipes, specifically created for heat transferring.

To overcome the problems like overheat of the boilers, some of the heat is retained in the boiler to keeping the building or home warm needs. Since more steam is produced as the temperature increases, it is essential to check the boiler and ensure that excess pressure is not built. To check the pressure build up, run your boiler for short durations of time. Furthermore, they have to be maintained regularly to keep them in optimum working condition.

1. Standard
ASME SA-106, ASME SA-192M, ASME SA-209M, ASME SA-210M, ASME SA-213M, ASME SA-335M, ASME SA-179M
ASTM A 106M, ASTM A 192M, ASTM A 210M, ASTM A 213M
EN 10216-2
DIN 17175
JIS G3456, JIS G3461, GIS G 3462
2.Uses
For manufacture waill panel, economizer, reheater superheater and steam pipeline of boilers
3.Available Dimension Range:
Cold Finished Seamless Tube and Pipe: 8~114.3*1~20mm
Hot-rolled Steel Tube and Pipe: 114.3~720*5~120mm

Boiler Tube