Motor-operated valve

Abstract

To provide a motor-operated valve capable of improving sealing performance and durability of a valve element seal surface and a valve seat seal surface and improving reliability, in the motor-operated valve adopting a main valve element and an auxiliary valve element.SOLUTION: A valve-body-portion side 51A including a main-valve-body side 51A, a sub-valve-body side 52A through which the main-valve-body side 53A is inserted, and a main-valve-body-support-portion side 50A, rotation suppressing means for suppressing transmission of rotation of the drive-shaft side 40A to the main-valve-body side 51A, and pressing-force-adjusting means for adjusting a pressing force of the main-valve-body side 20A against the valve-seat-portion side 51A, wherein the rotation suppressing means has a configuration in which the main-valve-body side is loosely fitted and supported with respect to the main-valve-body-support-portion side and the sub-valve-body side when the main-valve-body side is seated on the valve-seat-portion side, 51A 52A 20A 53A 51A, the pressing force adjusting means is configured to be in a main-valve-body self-weight seating state in which the main-valve-body one side seal surface 51A is seated on the valve-seat seal surface 20A by the self-weight of the main-valve-body 51A when the main-valve-body 51As1 is seated on the valve-seat 100a 20Aa.SELECTED DRAWING: Figure 2

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