[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: 46CFR58.16-15]

[Page 261]
 
                           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. 58.16-15  Valves and safety relief devices.

    (a) Each cylinder shall have a manually operated screw-down shutoff 
valve fitted with a handwheel installed directly at the cylinder outlet.
    (b) All cylinders shall be protected by one or more safety relief 
devices complying with the requirements of Sec. 58.16-10(a). The safety 
relief device shall be a shutoff valve with an integral spring-loaded 
safety relief valve and supplementary fusible plug, the latter designed 
to yield when the cylinder has been emptied of liquid gas by the relief 
valve under conditions of exposure to excessive heat.
    (c) Cylinder valves and safety relief devices shall have direct 
communication with the vapor space of the cylinder.
    (d) In addition to the cylinder valve, a multiple cylinder system 
shall be provided with a two-way positive shutoff manifold valve of the 
manually operated type. The manifold valve shall be so arranged that the 
replacement of empty cylinders can be made without shutting down the 
flow of gas in the system.
    (e) A master packless shutoff valve controlling all burners 
simultaneously shall be installed at the manifold of all gas-consuming 
appliances.