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  1. Home
  2. Rotating Equipment Products & Services
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  4. ​Steam Turbines Services
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  6. Steam Turbine Seals
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  8. Brush Tip Seals

Brush Tip Seals

Brush Tip Seal

Steam Turbine Seal Upgrades

In a typical steam turbine, 50% of efficiency loss comes from seal clearance damage. EthosEnergy solves the problem and virtually eliminates seal related efficiency losses with our patented SMART Seal™, brush tip seals.

As steam turbines age, the seals wear, causing excessive radial clearances that result in steam leakage. Worn conventional seals are typically and mainly caused by rubs that occur during start-up due to high vibration and thermal distortion. The end result is a bowed rotor, displacing the blades into the blade tip seals and compromising the tight efficient clearance. Steam leakage through seals that have worn to an excessive clearance condition will cause significant degradation in steam turbine efficiency and performance.

EthosEnergy’s brush tip seals offer flexible seals that compensate for rotor irregularities, rotor vibration, and some distortion of holders.

What can we do to help?

Brush tip seals integrate a flexible, metallic brush element at the blade tip and are an upgrade to most existing blade tip seal configurations. Like our retractable brush seal, the brush tip seal is flexible to compensate for rotor excursions during start-up, while maintaining a tight clearance during operation resulting in superior performance for steam turbines.

The brush tip seal design is adaptable to the current seal geometry in many turbine designs, allowing the existing holders to be used with no modifications. Providing easy installation of the seal and long-term maintainability.

Why choose EthosEnergy’s Brush Tip Seals?

With hundreds of installations completed globally, brush tip seals have proved to enhance steam turbine performance. By adding EthosEnergy’s wire bristles to the tip seal, you get , a reduced clearance system that will outperform an OEM style seal.


Get in touch today and discover how we can help your steam turbine needs!

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