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into the seal-steam header from the IP and HP packing glands will be great enough that the turbine becomes “self-sealing” and the steam seal regulator valve will start to close. Gland sealing in steam turbine pdf Brome Lake Use Sealing against Positive pressure for high pressure steam Sealing against negative pressure (vacuum) for exhaust. or air into the turbine casing where the turbine rotor shaft extends through the turbine casing.Casing Labyrinth Gland Purpose • Prevents the leaking of steam out of. 24 . Has to block penetration of air into the casing.

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