Regulationhistorical
49 CFR 193.2219
Internal piping.
Current as of 1999-10-01 Government source
Pipeline and Hazardous Materials Safety AdministrationOfficial agency material
View source Piping connected to an inner container that is located in the space between the inner container and outer shell must be designed for not less than the pressure rating of the inner container. The piping must contain expansion loops where necessary to protect against thermal and other secondary stresses created by operation of the tank. Bellows may not be used within the space between the inner container and outer shell.