Dual wall safety tube

A conduit assembly for the transfer of fluid between a source and a remote utilization device, comprising

• a first continuous, long length, bendable, seamless metal tube formed of stainless steel,
• a second continuous, long length, bendable, seam welded metal tube surrounding said first tube and forming a generally annular space therebetween,
• said first tube being a small diameter thin wall tube devoid of structure within the confines of its inner periphery and adapted for transferring fluids,
• said second tube being a thin wall tube slightly larger in diameter than said first tube and devoid of structure within the confines of its inner periphery except for said first tube, said second tube being closely spaced from said first tube and adapted for transferring fluid within said annular space, said first and second tubes being prefabricated relative to one another and extending between said source and said utilization device with no junctions therebetween, and
• means connecting said first and second tubes to first and second sources of fluids respectively, said connecting means comprising fittings at both ends of said first and second tubes, each said fitting having a stepped bore therein for receipt of said first and second tubes, said second tube being sealingly received in the larger portion of said stepped bore.