Steam valve, valve and steam turbine facility
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United States of America Patent
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Mar 9, 2021
Grant Date -
Jun 13, 2019
app pub date -
May 19, 2017
filing date -
May 20, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A valve includes a valve stem, a first valve body disposed on a distal end side of the valve stem and configured to be driven via the valve stem, a first valve seat on which the first valve body is seatable, an auxiliary seat surface extending along a direction transverse to an axial direction of the valve stem, an auxiliary seat portion disposed on a proximal end side of the valve stem with respect to the first valve body and configured to abut on the auxiliary seat surface when the first valve body is closed, and a biasing member capable of generating a biasing force along the axial direction of the valve stem.
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