Idler ring type
High-load compatible seal that exhibits stable sealability under conditions of high peripheral velocity, high pressure and large pressure fluctuations. Since it employs a carbon idler ring that is almost bilaterally symmetrical, this seal is hardly affected by large pressure fluctuations. Flushing liquid running through the multiple apertures of the idler ring effectively eliminates heat generated by sliding. The “YAB” type has a compact rotary structure.
Boiler feed water pumps, circulation water pumps, high-load pumps for nuclear power plants
Pressure: 10.0 MPaG
Peripheral velocity: 20m/s
nominal size: φ35 to φ130
Mechanical seals／Non-Cartridge mechanical seals