Sec. 14-3.21. Derating of a boiler

Latest version.

(a) General requirements.
Derating of a boiler by decreasing the maximum allowable working pressure may be done only after the requirements of subdivisions (b) through (d) of this section have been met. Derating may be initiated by the owner or the inspector.
(b) Nameplate requirements.
When a boiler is derated, an additional nameplate shall be permanently attached. The nameplate for derating shall be as follows:

(c) Nameplate attachment.
Attachment of the nameplate shall be witnessed by the inspector.
(d) Reports.
The inspector shall report the derating to the department.

                    
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