A valve with a sleeve movable along its central axis regulates fluid flow between the orifices of a housing for the valve. The valve has a thermost including heat-sensitive and movable parts, the latter being translatable relative to the heat-sensitive part along the central axis during expansion of a thermodilatable material contained in the heat-sensitive part. The thermostat is kinematically connected to the housing by a stirrup and kinematically connected to the sleeve, such that movements between the heat-sensitive and movable parts regulate the sleeve. In order for the valve to be more compact and safer, the stirrup has an arm extending lengthwise parallel to the central axis and connecting inside the sleeve the heat-sensitive part to an attachment part of the housing, and a fastener at its longitudinal end opposite the thermostat suitable for locking to the attachment part by plastic deformation.

A housing unit includes a cylindrical passage member, through which cooling water flows. A valve unit includes a valve main body rotatable around its axis and a valve opened portion formed in an outer peripheral surface of the valve main body, through which the cooling water can pass. A valve seat unit includes a positioned member and a valve seat surface. An outer peripheral surface of the positioned member is positioned in a radial direction by an inner peripheral surface of the cylindrical passage member and the positioned member is movable in an axial direction in a reciprocal manner. The valve seat surface holds a fluid tight condition between the valve seat surface and the valve main body when it is in contact with the outer peripheral surface of the valve main body. A biasing member biases the valve seat unit in such a way that the valve seat surface is pushed to the outer peripheral surface of the valve main body. The cylindrical passage member includes a groove formed in an inner peripheral surface thereof at least in a part of an overlapping area, at which the cylindrical passage member and the positioned member overlap each other in the axial direction. The groove is recessed in a radial-outward direction from the inner peripheral surface.

A system and method for identifying a position of a sliding sleeve. The system may comprise an outer housing, a sliding sleeve within the outer housing, one or more magnetic switches, and a magnet. A method may comprise closing a switch within a magnetic switch disposed with a magnet, wherein the magnetic switch is disposed downhole, and transmitting an electric current into a first electric branch, wherein the electric current traverses through first electric branch, through the magnetic switch, to a second electric branch, and to a node. The method may further comprise measuring the electric current or voltage at the node and identifying a position of a sliding sleeve in an outer housing from the measurement. The method may further comprise calibrating a linear resistor position sensor assembly based at least in part on the measurement.

The present disclosure, in at least one aspect, provides a displacement plug for us in a wellbore tubular, a method for entering a well system, and a related well system. The displacement plug, in one aspect, includes a plug body for landing in a wellbore tubular, wherein at least a portion of the plug body comprises a metal configured to expand in response to hydrolysis to seal against the wellbore tubular. The displacement plug, in one or more aspects, additionally includes one or more displacement features engaged with the plug body for displacing the plug body downhole.

A system and method for identifying a position of a sliding sleeve. The system may comprise an outer housing, a sliding sleeve within the outer housing, one or more magnetic switches, and a magnet. A method may comprise closing a switch within a magnetic switch disposed with a magnet, wherein the magnetic switch is disposed downhole, and transmitting an electric current into a first electric branch, wherein the electric current traverses through first electric branch, through the magnetic switch, to a second electric branch, and to a node. The method may further comprise measuring the electric current or voltage at the node and identifying a position of a sliding sleeve in an outer housing from the measurement. The method may further comprise calibrating a linear resistor position sensor assembly based at least in part on the measurement.

A pressure relief valve includes a hollow body having an inlet and an outlet, with the hollow body including at least one aperture extending through a surface of the hollow body. An actuator assembly is attached to the hollow body and a sleeve is slideably positioned about the hollow body, with the sleeve moveably attached to the actuator assembly. During operation, the actuator assembly moves the sleeve from a first position that covers the aperture to a second position that un-covers at least a portion of the aperture.

A sleeve for a valve assembly has an annular body with an inside surface extending from a first axial sleeve-end to a second axial sleeve-end. The inside surface has a first cylindrical section and a second cylindrical section with a conical interior seating surface extending therebetween. A groove extends circumferentially around and radially outward in the first cylindrical section and axially away from the conical interior seating surface towards the first axial sleeve-end. The sleeve includes one or more first ports that extend radially through the first cylindrical section and spaced apart from the groove. The one or more first ports are spaced apart from the groove by a lip formed by the first cylindrical section. The lip extends continuously and entirely circumferentially around the first cylindrical surface and extends a predetermined axial distance between the groove and the one or more first ports.

A valve assembly for an anti-ice system of an aircraft. The valve assembly comprises: a valve body; a first piston; and a regulating piston. The valve body defines a valve inlet, a valve outlet, a fluid passage between the valve inlet and the valve outlet, and a core portion defining a first chamber by cooperation with the first piston and a regulating chamber by cooperation with the regulating piston. The first piston is moveable between a first position and a second position, and the regulating piston is movable between a first position and a second position. The first piston overlaps the regulating piston when the first piston is its first position and the regulating piston is in its second position.

A device for controlling the flow of a fluid through a conduit from an upstream side of the device to a downstream side of the device is provided. The device includes an upstream valve casing defining an inlet, a downstream valve casing defining an outlet aperture, and a valve core secured between the upstream valve casing and the downstream valve casing. The upstream valve casing, the downstream valve casing and the valve core are formed as discrete parts. The valve core includes a housing defining a control volume. The valve member is mounted on the housing and positioned on the upstream side of the outlet aperture, the valve member being arranged to move reciprocally to selectively open and close the outlet aperture, thereby controlling flow of the fluid through the outlet aperture.

A control valve includes a cage is disposed within a valve body adjacent to a valve seat. The cage includes a first sleeve and a second sleeve. The first sleeve includes a first circumferential wall having a first inner surface, a first outer surface, and a first longitudinal axis. The first sleeve also includes a first plurality of openings disposed in the first circumferential wall. The second sleeve includes a second circumferential wall having a second inner surface and a second outer surface and a second longitudinal axis. The second sleeve also includes a second plurality of openings disposed in the second circumferential wall. The first outer surface of the first circumferential wall is tapered at a first angle relative to the first longitudinal axis, and the second inner surface of the second circumferential wall is tapered at a second angle relative to the first longitudinal axis.