Rotary joints and joint systems

Abstract

One embodiment of the rotary joint (1) includes a first half-tube (2) and a second half-tube (3). The first half-tube (2) includes a first inner tube (21), a first outer tube (22), a first closure body (24), and a retainer (25). The second half-tube (3) includes a second inner tube (31), a second outer tube (32), and a second closure body (34). A flange (35) provided on the outer side of the second outer tube (32) is fixed to the retainer (25). A first sealing member (71) and a second sealing member (72) are disposed between the first inner flange (23) and the second inner flange (33), and a third sealing member (73) with a radially inward opening and a U-shaped cross section is disposed on the path from the pressure chamber (4B) to the outer sealing member (74). The pressure chamber (4B) is formed around the first inner flange (23) and the second inner flange (33) and between the first occluder (24) and the second occluder (34). none

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