La. Admin. Code tit. 43 § XI-5505
Current through Register Vol. 50, No. 11, November 20, 2024
Section XI-5505 - Pressure Relief Devices (Formerly section 2523)A. Each fuel supply cylinder in vehicles shall be fitted with a pressure relief device in accordance with the following:1. pressure relief devices for cylinders shall be in accordance with Compressed Gas Association (CGA) Pamphlet-1.1 and be of the "Combination Rupture Disk Fusible Plug CG-5 "type in which the fusible plug has a nominal yield temperature of 212°F;2. only one combination rupture disk-fusible plug shall be installed in any pressure relief device opening;3. the pressure relief device shall communicate with the fuel and be vented to the atmosphere by a method that will withstand the maximum pressure which will result;4. the discharge flow rate of the pressure relief device shall not be reduced below that required for the capacity of the container upon which the device is installed;5. the pressure relief device on cylinders shall be permanently marked with the manufacturer's name, initials, or trademark, the temperature rating (212°F) of the fuse plug, and the maximum pressure rating of the rupture disk.B. The minimum rate of discharge of pressure relief devices shall be in accordance with Compressed Gas Association (CGA) Pamphlet S-1.1 (cylinders); S-1.2 (cargo and portable tanks); S-1.3 (storage cylinders); or the ASME Code, whichever is applicable.C. Pressure relief valves for CNG service shall not be fitted with lifting devices. The adjustment, if external, shall be provided with means for sealing the adjustment to prevent tampering by unauthorized persons. If at any time such seal is broken, the valve shall be removed from service until it has been reset and sealed. Any adjustments necessary shall be made by the manufacturer or his authorized representative(s).D. Each pressure relief valve shall be plainly marked by the manufacturer of the valve, as follows:1. with the pressure in pounds per square inch (psi) at which the valve is set to start-to-discharge;2. with the discharge capacity in cubic feet per minute (cfm); or3. any other marking(s) as required by the Department of Transportation (DOT) or the ASME Code.La. Admin. Code tit. 43, § XI-5505
Promulgated by the Department of Natural Resources, Office of Conservation, Pipeline Division, LR 18:62 (January 1992), repromulgated LR 49324 (2/1/2023).AUTHORITY NOTE: Promulgated in accordance with R.S. 30:751 and 752.