Tube separators are especially used for double-wall containers and ducts, where the space between the inner and outer walls serves to maintain the desired temperature within the system (e.g., "heated" pipe)
The length of the tube is chosen so that the membrane lies approximately at the level of the inner wall
Flange dimensions are in accordance with ČSN 131160 resp. DIN 2501: DN25, 32, 40, 50, 65, 80, 100 (mm) or in inches according to ANSI 16.5
