Casing End Seal

Casing end seal are machined from special grade stainless steel, are of spring backed type and placed between the rotor and the casing to prevent and minimize steam leakage. Under normal operating circumstances, these labyrinth seals do not contact the rotorand do not warrant any maintenance for an extended period of time. The larger Multistage Turbines from Kessels use J-Type sealing fins for mechanical sealing and preventing steam leakage. J-Type sealing fins are significantly safer than regular seals, being easily replaceable and limiting the damage to the rotor by rubbing in the event of an accidental run-away.