Steam Turbine Labyrinth seal leakage

[turbo05]

If a steam turbine is pressurized with nitrogen at 0.2 bar during preservation, will it leak through labyrinth seal gland? Experts, please advise.

 

[georgeverghese]

Yes, it will. Labyrinth seals leak more when the shaft is stationary, and much less when the shaft is running at high speed.