Inventors:
Richard M. Oehlschlaeger - Novelty OH
John R. Greco - Ravenna OH
Assignee:
Parker Hannifin Corporation - Cleveland OH
International Classification:
F16L 918
Abstract:
A dual wall safety tube assembly comprises an inner, seamless, stainless steel tube of extended length and an outer, welded stainless steel tube of the same length, in which the inner tube is connected as a process line without any junctions except for end couplings and the outer tube is similarly connected as a monitoring or inerting conduit. The assembly may include further options of electric heating cable, plastic jacketing and thermal insulation of fiberglass or similar material.