Connection for double walled ducting - has gasket with groove to carry leaked medium to outside of ducting

摘要

The connection is for double-walled ducting, where the space between the walls contains a heating or cooling medium. The space is closed at the coupling end of the pipe by an end wall contg. openings communicating with similar openings of an adjoining pipe. Between the end walls there is arranged a gasket having openings registering with those of the end walls. The sealing surfaces of the gasket may have a groove open to the outside of the ducting to guide leakage fluid away from the inside.