Pillar RRG mechanical seal is used as secondary seal in tandem seal. Groove on the seal face reduces load to the seal and contributes longer life.
Features
- Environment friendly seal unit
Pillar RRG seal is an environment friendly seal unit which will not allow a small amount of leak from primary seal to be diffused in the atmosphere. - Seal system requiring no reservoir
Pillar RRG seal doesn’t require reservoir, it can save the space and reduce the cost. - Long-time dry sliding realized
The seal ring is grooved for reduction of load and is impregnated with special lubricant, it is applicable to the dry running. - Space-saving/static type cartridge seal
Application
- Process pump
Basic Construction
The Pillar PPG (Pillar Phoenix Groove) seal is Hydrodynamic dry gas seal designed with non-contact, which seal surface is uniquely grooved to use the dynamic pressure effectively by the multi-barrier.
It is applicable to a wide range of applications from centrifugal compressor to the steam turbine and blower.
Features
- Multi-groove type, assuring stabilized sealing performance
The divided multi-groove serves to maintain the desired parallelism between seal surfaces, and further to minimize the change in leak rate. Besides, the leak rate in this case is approx. 1/1000 of that for labyrinth seal, as the clearance between seal surfaces is minimal or several micrometers. - Minimized power consumption
Since the power is used only for shearing gas at seal area, the power consumption is extremely limited as compared with contact seal. - Space-saving cartridge type
The PPG seal is a cartridge type seal which rotary side is integral with the static side, allowing the seal to be handled easily. - Applicable to rotation in both directions
Since the groove is bilaterally symmetric, it is applicable regardless of rotating direction.
Application
- Turbine, blower
Basic Construction
