Slide ring seal for pump for e.g. water treatment in chemical industry, has bellows, which are extended over radial outer end of pressure spring and comprise support disks at region of both axial ends of bellows

摘要

The seal has a sealing ring (2) fixedly connected with a housing (7), and another sealing ring (3) connected with a rotating shaft (9) in a torque proof manner. A pressure spring (5) between the two sealing rings produces a desired contact pressure between contact surfaces of the sealing ring. Bellows (4) lie at the latter sealing ring and hold a support ring. The bellows are extended over a radial outer end of the pressure spring and comprise support disks (6, 11) at a region of both axial ends of the bellows. The bellows and the former ring comprise a gap (12).