[Code of Federal Regulations]
[Title 46, Volume 2]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR58.16-18]

[Page 262]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 58_MAIN AND AUXILIARY MACHINERY AND RELATED SYSTEMS--Table of Contents
 
     Subpart 58.16_Liquefied Petroleum Gases for Cooking and Heating
 
Sec. 58.16-18  Installation.

    (a) Cylinders, regulating and safety equipment. (1) Cylinders, 
regulating and safety equipment shall be installed in a substantially 
constructed and firmly fixed metal enclosure located on or above the 
weather deck. The cylinder enclosure shall have access from the weather 
deck only. The enclosure shall be provided with top and bottom 
ventilation consisting of a fresh air inlet pipe and an exhaust pipe 
both entering through the top of the cylinder housing. The enclosure 
shall be constructed so that when the access opening is closed, no gas 
can escape except through the ventilation system.
    (2) Cylinders, regulating and safety devices shall be securely 
fastened and supported within the metal enclosure. The cylinders and 
high pressure equipment shall be so mounted as to be readily accessible 
and capable of easy removal for refilling and inspection. The stowage of 
high pressure equipment in the housing shall be such that the cylinder 
valves can be readily operated and the pressure gage dial be easily 
visible. Where possible cylinders shall be mounted in an upright 
position.
    (3) Stowage of unconnected spare cylinders, filled or empty, shall 
comply with the requirements for cylinders.
    (4) All valves, manifolds and regulators shall be securely mounted 
in locations readily accessible for inspection, maintenance and testing, 
and shall be adequately protected.
    (5) Discharge of the safety relief valves shall be vented away from 
the cylinder, and insofar as practicable, upward into the open 
atmosphere, but in all cases so as to prevent impingement of the 
escaping gas onto a cylinder.
    (b) Piping. (1) All piping shall be installed so as to provide 
minimum interior runs and adequate flexibility. The piping at the 
cylinder outlets shall be fitted with flexible metallic connections to 
minimize the effect of cylinder movement on the outlet piping.
    (2) Distribution lines shall be protected from physical damage and 
be readily accessible for inspection. Lines shall be substantially 
secured against vibration by means of soft nonferrous metal clips 
without sharp edges in contact with the tubing. When passing through 
decks or bulkheads, the lines shall be protected by ferrules of 
nonabrasive material. The distribution lines shall be continuous length 
of tubes from the regulator to the shutoff valve at the appliance 
manifold.
    (c) Gas-consuming appliances. All gas-consuming appliances shall be 
permanently and securely fastened in place.
    (d) Electrical. No electrical connections shall be made within the 
cylinder housing.