When a part of a hole rear wall of a mounting hole formed in a valve plate and a part of a rod rear wall of a mounting portion of a valve rod have formed thereat inclined portions, respectively, that produce a wedge effect by abutting upon each other and when the valve plate and the valve rod are fixed in a direction of an axis by a valve-plate fixing screw, a wedge effect when the inclined portions and abut upon each other causes a rod front wall of the mounting portion and a hole front wall of the mounting hole to come into close contact with each other and the valve plate and the valve rod to be precisely and firmly fixed to each other so as not to rotate relative to each other.

A wastegate valve of a turbocharger includes a swing arm that includes a shaft and a lever including an insertion hole, a valve body including a valve shaft inserted into the insertion hole and a valve plate arranged on an end of the valve shaft, a support plate fixed to a portion of the valve shaft protruding out of the insertion hole, and an elastic member arranged between the support plate and the lever or the lever and the valve plate. The elastic member includes a ring, claws curved toward a first side in an axial direction of the ring, and a projection projecting from the ring toward the first side. The projection length of the projection is smaller than a distance obtained by subtracting the thickness of the lever from the distance between the valve plate and the support plate in the axial direction of the valve shaft.

A movable shutter for a fluid conduit including two half-bodies consisting of a tube that forms a conduit, to the ends of which are affixed a flange and a plate having a bearing surface; a gate with a body defined by two longitudinal surfaces located opposite the bearing surfaces, which gate is mounted movably between the bearing surfaces, between a closed position and an open position; and a locking mechanism suitable for keeping the plates in a position in which they are either separated or close together, wherein at least one protruding element is provided on at least one of the bearing surfaces or on at least one of the longitudinal surfaces, such that if the gate is not properly positioned, the protruding element forms an obstacle that prevents the locking mechanism from keeping the plates in the position in which they are close together.

A movable shutter for a fluid conduit including two half-bodies consisting of a tube that forms a conduit, to the ends of which are affixed a flange and a plate having a bearing surface; a gate with a body defined by two longitudinal surfaces located opposite the bearing surfaces, which gate is mounted movably between the bearing surfaces, between a closed position and an open position; and a locking mechanism suitable for keeping the plates in a position in which they are either separated or close together, wherein at least one protruding element is provided on at least one of the bearing surfaces or on at least one of the longitudinal surfaces, such that if the gate is not properly positioned, the protruding element forms an obstacle that prevents the locking mechanism from keeping the plates in the position in which they are close together.

A gate valve for a pressurized pipe includes a paddle member with a lower proximal portion and a pair of spaced-apart and leg portions that form an outer edge and an inner edge. A cartridge includes a valve stem channel extending through a distal portion and through a conduit and terminating at a proximal opening in a proximal portion of the cartridge. The proximal portion of the cartridge includes a slot for accommodating the inner edge of the paddle member. In a pre-compression configuration, the inner edge of the paddle member is spaced-apart from the proximal opening of the conduit and in a post-compression configuration, the inner edge of the paddle member engages and seals the proximal opening resulting in a built-in check-valve that is open when the paddle member is in the pre-compression configuration and closed when the paddle member is in the post-compression configuration.

A gate valve for a pressurized pipe includes a paddle member with a lower proximal portion and a pair of spaced-apart and leg portions that form an outer edge and an inner edge. A cartridge includes a valve stem channel extending through a distal portion and through a conduit and terminating at a proximal opening in a proximal portion of the cartridge. The proximal portion of the cartridge includes a slot for accommodating the inner edge of the paddle member. In a pre-compression configuration, the inner edge of the paddle member is spaced-apart from the proximal opening of the conduit and in a post-compression configuration, the inner edge of the paddle member engages and seals the proximal opening resulting in a built-in check-valve that is open when the paddle member is in the pre-compression configuration and closed when the paddle member is in the post-compression configuration.

A fixed valve plate having a fixed valve central water passage and a fixed valve side water passage; a first movable valve plate having a first movable valve central water passage; and a second movable valve plate having a second movable valve central water passage and a second movable valve side water passage; wherein two end surfaces of the second movable valve plate are respectively sealedly attached to corresponding end surfaces of the first movable valve plate and the fixed valve plate; and wherein rotating of the first movable valve plate causes the first movable valve central water passage and the second movable valve central water passage communicated or noncommunicating, and rotating of the second movable valve plate causes the second movable valve side water passage and the fixed valve side water passage communicated or noncommunicating.

A fixed valve plate having a fixed valve central water passage and a fixed valve side water passage; a first movable valve plate having a first movable valve central water passage; and a second movable valve plate having a second movable valve central water passage and a second movable valve side water passage; wherein two end surfaces of the second movable valve plate are respectively sealedly attached to corresponding end surfaces of the first movable valve plate and the fixed valve plate; and wherein rotating of the first movable valve plate causes the first movable valve central water passage and the second movable valve central water passage communicated or noncommunicating, and rotating of the second movable valve plate causes the second movable valve side water passage and the fixed valve side water passage communicated or noncommunicating.

An encapsulated valve system includes a first housing portion having a first facing surface, the first facing surface comprising a plurality of branch pathways formed as a recess within the first facing surface. The valve system further includes a second housing portion having a second facing surface, the second facing surface comprising a plurality of branch pathways formed as a recess within the second facing surface. A disposable conduit is configured to be interposed between the first and second housing portions and disposed within the recess of the first facing surface and the recess of the second facing surface. The disposable conduit is thus sandwiched between the first and second facing surfaces. A plurality of pinch valve actuators are mounted on one or both of the first housing portion and the second housing portion, the plurality of pinch valve actuators configured to pinch the disposable conduit at selective branch pathways.

An encapsulated valve system includes a first housing portion having a first facing surface, the first facing surface comprising a plurality of branch pathways formed as a recess within the first facing surface. The valve system further includes a second housing portion having a second facing surface, the second facing surface comprising a plurality of branch pathways formed as a recess within the second facing surface. A disposable conduit is configured to be interposed between the first and second housing portions and disposed within the recess of the first facing surface and the recess of the second facing surface. The disposable conduit is thus sandwiched between the first and second facing surfaces. A plurality of pinch valve actuators are mounted on one or both of the first housing portion and the second housing portion, the plurality of pinch valve actuators configured to pinch the disposable conduit at selective branch pathways.