[Code of Federal Regulations]
[Title 46, Volume 7]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR182.422]

[Page 272]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 182_MACHINERY INSTALLATION--Table of Contents
 
                Subpart D_Specific Machinery Requirements
 
Sec. 182.422  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 valves 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
    (4) Full penetration welds are employed in the fabrication of the 
structure and its attachment to the hull.

[CGD 85-080, 61 FR 986, Jan. 10, 1996, as amended by USCG-2000-7790, 65 
FR 58465, Sept. 29, 2000]