[Code of Federal Regulations]
[Title 46, Volume 1]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR34.25-15]

[Page 467]
 
                           TITLE 46--SHIPPING
 
         CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY
 
PART 34_FIREFIGHTING EQUIPMENT--Table of Contents
 
        Subpart 34.25_Water Spray Extinguishing Systems, Details
 
Sec. 34.25-15  Piping--T/ALL.

    (a) All piping, valves and fittings shall meet the applicable 
requirements of subchapter F (Marine Engineering) of this chapter.
    (b) Distribution piping shall be of materials resistant to 
corrosion, except that steel or iron pipe may be used if inside 
corrosion resistant coatings which will not flake off and clog the 
nozzles are applied. Materials readily rendered ineffective by heat of a 
fire shall not be used. The piping shall be subject to approval for each 
installation.
    (c) All piping, valves, and fittings shall be securely supported, 
and where necessary, protected against injury.
    (d) Drains, strainers, and dirt traps shall be fitted where 
necessary to prevent the accumulation of dirt or moisture.
    (e) Threaded joints shall be metal to metal, with no thread compound 
used.
    (f) Distribution piping shall be used for no other purpose.
    (g) All piping shall be thoroughly cleaned and flushed before 
installation of the water spray nozzles.