Vacuum Pumping Station

TBMG-7405

08/01/2001

Abstract
Content

A proposed valve unit called a "vacuum pumping station" would be incorporated into a plumbing system that supplies a vacuum for vacuum insulated cryogenic equipment. The vacuum pumping station is intended to perform functions now performed by, and to be a simpler and more reliable alternative to, an assembly of components that include a vacuum-pump-out valve and a separate vacuum-isolation valve (with a separate actuator) used to monitor vacuum levels. The present assembly includes a leak-prone threaded connection between the pump-out and isolation valve, and leaks can also occur at other locations. The vacuum pumping station would include a vacuum-pump-out port, a thermocouple port, a thermocouple-isolation valve, a pressure-relief valve, a pressure-relief port, and a single mechanism for actuating the pump-out, isolation, and pressure-relief functions of the valve. The number of joints where leaks could develop would be only half that of the present assembly.

Meta TagsDetails
Citation
"Vacuum Pumping Station," Mobility Engineering, August 1, 2001.
Additional Details
Publisher
Published
Aug 1, 2001
Product Code
TBMG-7405
Content Type
Magazine Article
Language
English