[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: 46CFR119.422]



[Page 362-363]

 

                            TITLE 46_SHIPPING



                  (This book contains parts 90 to 139)

 

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

 

PART 119_MACHINERY INSTALLATION--Table of Contents

 

                Subpart D_Specific Machinery Requirements

 

Sec.  119.422  Integral and non-integral keel cooler installations.



    (a) A keel cooler installation used for engine cooling must be 

designed to prevent flooding.

    (b) Except as provided in paragraph (e), a shutoff valve must be 

located where the cooler piping penetrates the shell, as near the shell 

as practicable, except where the penetration is forward of the collision 

bulkhead.

    (c) The thickness of the inlet and discharge connections, outboard 

of the shutoff values required by paragraph (b) of this section, must be 

at least Schedule 80.

    (d) Short lengths of approved nonmetallic flexible hose, fixed by 

two hose clamps at each end of the hose, may be used at machinery 

connections for a keel cooler installation.

    (e) Shutoff valves are not required for integral keel coolers. A 

keel cooler is considered integral to the hull if the following 

conditions are satisfied:

    (1) The cooler structure is fabricated from material of the same 

thickness and quality as the hull;

    (2) The flexible connections are located well above the deepest 

subdivision draft;

    (3) The end of the structure is faired to the hull with a slope no 

greater than 4 to 1; and



[[Page 363]]



    (4) Full penetration welds are employed in the fabrication of the 

structure and its attachment to the hull.



[CGD 85-080, 61 FR 922, Jan. 10, 1996, as amended by USCG-2000-7790, 65 

FR 58462, Sept. 29, 2000]