Hose lining for internal repair of cavities, especially pipelines, involves introduction of hose into cavity and is cured by supplying heat whereby warm inert gas is introduced into hose

摘要

Hose lining involves the introduction of a hose into a cavity and curing by supplying heat whereby a warm inert gas is introduced into the hose. The inert gas from the hose is taken off, warmed up and redirected again into the hose. Nitrogen or carbon dioxide is introduced into the hose.