FIELD: machine building.
SUBSTANCE: invention relates to a method and apparatus for estimating a condition of seal 206 of rotary valve 200. Example of an embodiment of the method includes determining a seal wearing cycle of a flow control member of a rotary valve. Seal wearing cycle includes movement of the flow control member between a first position in which said flow control member is in contact with a seal and a second position. Example further includes a step of determining torque of an actuator operating the flow control member for the seal wearing cycle, and a step of estimating a condition of the seal based on the torque.
EFFECT: invention ensures higher reliability of sealing.
13 cl, 4 dwg
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