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Title 49 Part 179 → Subpart F → §179.400-7

Title 49 → Subtitle B → Chapter I → Subchapter C → Part 179 → Subpart F → §179.400-7

Electronic Code of Federal Regulations e-CFR

Title 49 Part 179 → Subpart F → §179.400-7

e-CFR data is current as of November 21, 2019

Title 49Subtitle BChapter ISubchapter CPart 179Subpart F → §179.400-7


Title 49: Transportation
PART 179—SPECIFICATIONS FOR TANK CARS
Subpart F—Specification for Cryogenic Liquid Tank Car Tanks and Seamless Steel Tanks (Classes DOT-113 and 107A)


§179.400-7   Tank heads.

(a) Tank heads of the inner tank and outer jacket must be flanged and dished, or ellipsoidal.

(b) Flanged and dished heads must have—

(1) A main inside dish radius not greater than the outside diameter of the straight flange;

(2) An inside knuckle radius of not less than 6 percent of the outside diameter of the straight flange; and

(3) An inside knuckle radius of at least three times the head thickness.


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