Rubber bellow seals are also called as busher type seals.
These seals are also unbalanced seals and to be mounted inside. With these seals, drive is made by rubber bellow and springs used only for compression. Due to bellow drive these seals are direction independent.
These seals are mainly used for hot water pumps, submersible pumps, sewage, light chemicals and media with solids
Pressure up to 10 bars
Temperature -20 to 130degree C
rotaryface Carbon, sic,
Stationary face Carbon, Sic,Ceramic
Elastomers viton, , nitrile,
Springs and retainers SS 304 & SS 316