Code of Maryland Regulations
Title 09 - MARYLAND DEPARTMENT OF LABOR
Subtitle 12 - DIVISION OF LABOR AND INDUSTRY
Chapter 09.12.01 - Board of Boiler Rules
Section 09.12.01.21 - Power Boiler - Existing Installation: Boiler Feed System
Current through Register Vol. 50, No. 25, December 15, 2023
A. A boiler shall have a feed supply which permits it to be fed at any time while under pressure.
B. A boiler having more than 500 square feet of water-heating surface shall have at least two means of feeding, as follows:
C. A boiler conforming to the ASME Code, PG-61.1, and fired by gaseous, liquid, or solid fuel in suspension may have a single feed supply provided that means are furnished for the immediate shutoff of heat input if the water feed is interrupted.
D. Feedwater shall be fed into a boiler so that it will not be introduced:
E. Feed Pipe.
F. Returns.
G. Deaerating Heater. When a deaerating heater is:
Regulations .21 adopted effective June 1, 1989 (16:10 Md. R. 1106)