[Code of Federal Regulations]

[Title 46, Volume 4]

[Revised as of October 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 46CFR108.417]



[Page 133-134]

 

                            TITLE 46_SHIPPING



                  (This book contains parts 90 to 139)

 

   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)

 

PART 108_DESIGN AND EQUIPMENT--Table of Contents

 

                  Subpart D_Fire Extinguishing Systems

 

Sec.  108.417  Fire pump components and associated equipment.



    (a) Each fire pump in a fire main system must have a relief valve on 

its discharge side that is set to relieve at 1.75



[[Page 134]]



kilograms per square centimeter (approximately 25 pounds per square 

inch) in excess of the pump discharge pressure necessary to meet the 

pressure required in Sec.  108.415 for the pump or 8.6 kilograms per 

square centimeters (approximately 125 pounds per square inch), whichever 

is greater. A relief valve may be omitted if the pump operating under 

shut off condition is not capable of developing the pressure described 

in Sec.  108.415 plus 1.75 kilograms per square centimeter (25 pounds 

per square inch).

    (b) Each fire pump in a fire main system must have a pressure gauge 

on its discharge side.

    (c) Fire pumps may be used for other purposes. One of the required 

pumps must be kept available for use on the fire system at all times. If 

a fire pump is used in a system other than the fire main system, except 

for branch lines connected to the fire main for deck washing, each pipe 

connecting the other system must be connected to the pump discharge 

through a shut off valve at a manifold near the pump. If the fire pump 

exceeds the pressure in Sec.  108.417(a), the pipe leading from the 

discharge manifold to other portions of the fire main system must have a 

reducing station and a pressure gauge in addition to the pressure gauge 

required by paragraph (b) of this section.

    (d) If a fire pump has a reducing station, the relief valve required 

by paragraph (a) of this section for the pump and the additional 

pressure gauge required in paragraph (c) of this section must not be 

located on the discharge side of the reducing station.

    (e) An oil line must not be connected to a fire pump.



[CGD 73-251, 43 FR 56808, Dec. 4, 1978, as amended by CGD 95-028, 62 FR 

51208, Sept. 30, 1997]