Tube System

A tube system having a tube (12) shaped into a ring, wherein the tube (12) comprises polyurethane and has an at least substantially constant wall thickness along its extent, wherein the substantially constant value of the wall thickness is in the range between 0.1 mm and 0.4 mm,

• wherein the tube (12) is toroidal;
• and wherein the polyurethane comprises or consists of a polyurethane copolymer, a polyurethane terpolymer or any desired mixture of the above compounds.

A tube system having a tube (12) shaped into a ring, wherein the tube (12) comprises polyurethane and has an at least substantially constant wall thickness along its extent, wherein the substantially constant value of the wall thickness is in the range between 0.1 mm and 0.4 mm,

• wherein the tube (12) includes two ends (14, 16) which are welded to one another in an overlapping manner for forming the ring, wherein the inner side (26a) of a first section of the tube wall (13), which starts from one end (14) of the tube (12), is welded to the inner side (26b) of a second section of the tube wall (13), which starts from the other end (16) of the tube (12).

A tube system having a tube (12) shaped into a ring, wherein the tube (12) comprises polyurethane and has an at least substantially constant wall thickness along its extent, wherein the substantially constant value of the wall thickness is in the range between 0.1 mm and 0.4 mm,

• wherein the tube (12) has a hole (32) into which a valve (20) is inserted which includes a holding section (34) arranged in the interior (24) of the tube (12), a functional section (36) arranged outside the tube (12) and a press fitting sleeve (22), wherein the press fitting sleeve (22) has an inwardly disposed contact surface (42) and the holding section (34) having a counter-contact surface (44) cooperating with the contact surface (42), wherein a section of the tube wall (13) surrounding the hole (32) of the tube (12) is clamped between the contact surface (42) of the press fitting sleeve (22) and the counter-contact surface (44) of the holding section (34) of the valve (20), and wherein the contact surface (42) of the press fitting sleeve (22) and the counter-contact surface (44) of the holding section (34) have a conical design and the press fitting sleeve (22) is fastened to the valve (20) in a press fit (45).

A method of manufacturing a tube system having a tube (12) shaped into a ring, wherein the tube (12) comprises polyurethane and has an at least substantially constant wall thickness along its extent, wherein the substantially constant value of the wall thickness is in the range between 0.1 mm and 0.4 mm,

• wherein the tube (12) is manufactured by an extrusion process;
• and wherein the tube (12) is shaped into a ring by overlapping welding of two ends (14, 16) of the tube (12) to one another, wherein the inner side (26a) of a first section of the tube wall (13), which starts from one end (14) of the tube (12), is brought into contact with the inner side (26b) of a second section of the tube wall (13), which starts from the other end (16) of the tube (12), and wherein the first and second sections of the tube wall (13) are welded to one another.