Helium tube trailers

For distributing larger quantities of gaseous helium, argon, and occasionally neon, a number of large, horizontal, compressed gas cylinders are manifolded on tmck semitrailers (called tube trailers) or railroad cars. Like individual cylinders, these serve both as transport containers and rental storage containers. Capacities of tube trailers range from about 300 to 5,000 m (10,000—175,000 fT) of gas. 

Gaseous helium is commonly stored in high pressure cylinders, hydril tubes, or tube trailers. Liquid helium is commonly stored at the consumer site in cryogenic liquid cylinders, portable customer stations, and specially designed insulated tanks. To minimize helium transfer... 

Helium gas is authorized for shipment in cylinders, tank cars, and tube trailers in accordance with DOT and TC regulations [5, 6]. Liquid helium is shipped as a cryogenic fluid in insulated cylinders, insulated portable and cargo tanks, and insulated intermodal containers. 

Gaseous helium is shipped in tube trailers with capacities ranging up to 200 000 (5664... 

AAX, or 3T. Specifications 3AX, 3AAX, and 3T are commonly used in new production for containers approximately 22 inches (55.88 cm) in diameter instead of the older 9 -inch (24.45-cm) diameter tubes which were made to Specifications 3A and 3AA. Specifications 3AX, 3AAX, and 3T cylinders have a minimum size of 1000 lb (454 kg) water capacity under the TC and DOT regulations. Tube trailers in the United States have been built to carry as much as 180 (XX) standard ft (5097 m ) of helium. In some Canadian provinces, capacities up to 200 000 ft (5663 m ) of hydrogen are possible. 

By Highway In cylinders on trucks, and in tube trailers. Liquid helium, in insulated cylinders, portable tanks, and cargo tanks. 

Gaseous helium is shipped in tube trailers with capacities ranging to more than 40 0(X) ft (1100 m ). These trailers are built to comply with DOT cylinder specifications 3A, 3AA, 3AX, 3AAX, or 3T. The trailers commonly serve as the storage supply for the user, with the supplier replacing trailers as they are emptied. 

---