High temperature line expansion installation with release agent

Details High temperature line expansion installation with release agent High temperature line expansion installation with release agent

2006-04-25

2006-04-25

Brinson, Patrick (Department: 3754)

Pipes and tubular conduits

Flexible

Joined sections

C138S149000, C138S155000, C138S118000, C138S145000, C285S045000, C285S228000, C285S299000

Reexamination Certificate

active

07032621

ABSTRACT:
A high temperature pre-insulated piping system is shown which can withstand conveyance temperatures in excess of 250° F. The piping system includes a first and second length of insulated and jacketed pipe. Each pipe length includes an inner metal pipe having an interior surface and an exterior surface and having an envelope of foamed insulation surrounding the inner pipe exterior surface. A special release agent is applied between the metal pipe exterior and the surrounding layer of foamed insulation. The release agent causes intentional disbondment of the foamed insulation layer from the inner metal pipes under certain conditions of environmental stress.

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