Augmenting labyrinth seals with brush seals is a simple and effective approach to reducing clearances and eliminating potential problems from shaft contact wear.
Advantages
Reduce initial leakage by 50% compared to straight labyrinth seals, or by 30% compared to interlocking labyrinth seals
Eliminate steam leaks and the safety hazards associated with high temperatures and toxic gases
Reduce condenser capacity and space requirements in new steam turbines
Require less axial space than labyrinths
Easily installed and field serviceable in a variety of sealing environments
Allow a “wear-in” to minimal clearance through flexible sealing mechanism
Standard components for cost-effectiveness and timely shipment
Typical Applications
Process steam turbines
Centrifugal compressors
Turboexpanders
Augmenting labyrinth seals with brush seals is a simple and effective approach to reducing clearances and eliminating potential problems from shaft contact wear.
Advantages
- Reduce initial leakage by 50% compared to straight labyrinth seals, or by 30% compared to interlocking labyrinth seals
- Eliminate steam leaks and the safety hazards associated with high temperatures and toxic gases
- Reduce condenser capacity and space requirements in new steam turbines
- Require less axial space than labyrinths
- Easily installed and field serviceable in a variety of sealing environments
- Allow a “wear-in” to minimal clearance through flexible sealing mechanism
- Standard components for cost-effectiveness and timely shipment
Typical Applications
- Process steam turbines
- Centrifugal compressors
- Turboexpanders
