The rubber bellows are produced with a vulcanized steel ring to guarantee a perfect sealing of the profiled sealing rings in the special chamber of the swivel flanges.
Our rubber bellows red ring are made from EPDM rubber and provide resistance to water upto 90°C, however this is influenced by the working pressure.
There are two basic types of expansion bellows singles and doubles, and their purpose is to absorb the movement in any pipework run that is mounted between two fixed points.