Boiler Division
The responsibility of the Boiler Inspection Division is to protect the citizens of the state of Tennessee from the potential hazards involved in the operation of boilers and pressure vessels in the state of Tennessee.
There are three (3) categories of vessels that are inspected in the state of Tennessee; High pressure, low pressure, and unfired pressure vessels:
High pressure boilers are boilers that operate above 15 psi steam pressure or 160 psi water pressure and 250 F. These boilers are used for power and process, and are found at power plants, hospitals, manufacturing facilities, and even the neighborhood drycleaner.
Low pressure boilers are boilers that operate below 15 psi steam pressure or 160 psi water pressure and 250 F. These boilers are used for steam heating, hot water heating, and hot water supply. Low pressure boilers can be found in restaurants, hospitals, schools, office buildings, apartment buildings, manufacturing facilities, and laundries.
Unfired pressure vessels are vessels that contain potable hot water, compressed air, or none flammable gases. These are vessels that operate above 15 psi, are over 5 cubic feet in volume, or 120 gallon capacity (water storage usage). Unfired pressure vessels can be found operating at service stations, hospitals, manufacturing facilities, schools, farming supply stores, etc.
The Boiler Inspection Division also licenses boiler repair companies to repair boilers and pressure vessels that are in the state of Tennessee. Throughout the nation there are over 150 repair companies licensed to repair boilers and pressure vessels in Tennessee.
The Boiler Inspection Division is also responsible for conducting tri-annual quality control reviews, for the American Society of Mechanical Engineers and the National Board of Boiler and Pressure Vessel Inspectors. The reviews are performed on companies that are in the state of Tennessee, that manufacture and/or repair boilers and/or pressure vessels.
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