A flow passage joint structure includes: a first external thread portion formed, at an end portion of first piping block, radially outward of flow passage hole; a second external thread portion formed, at an end portion of second piping block, radially outward of flow passage hole; a union nut having a first internal thread portion to be screwed to the first external thread portion, on one side in an axial direction thereof, and having a second internal thread portion to be screwed to the second external thread portion, on another side in the axial direction thereof; and a gasket configured to seal a connection portion between the flow passage holes on a radially inner side of the union nut. The first external thread portion and the first internal thread portion are right-hand threads, and the second external thread portion and the second internal thread portion are left-hand threads.

A flow passage joint structure includes: a first external thread portion formed, at an end portion of first piping block, radially outward of flow passage hole; a second external thread portion formed, at an end portion of second piping block, radially outward of flow passage hole; a union nut having a first internal thread portion to be screwed to the first external thread portion, on one side in an axial direction thereof, and having a second internal thread portion to be screwed to the second external thread portion, on another side in the axial direction thereof; and a gasket configured to seal a connection portion between the flow passage holes on a radially inner side of the union nut. The first external thread portion and the first internal thread portion are right-hand threads, and the second external thread portion and the second internal thread portion are left-hand threads.

A grooved joint adapter includes a cylindrical body having an insertion port formed in one end, a groove formed in an outer peripheral surface of the other end, a guide portion formed on an interior thereof, first coupling portions on both outer surfaces thereof, and a fixing portion protruding from an inner peripheral surface thereof. A pipe socket has second coupling portions on both outer surfaces and a protrusion formed on one surface. A pressure ring is disposed on an insertion port side and has both ends separated from each other. A stopper ring is disposed inside of the guide portion, and has both ends separated from each other and one or more wedge sawteeth on an inner peripheral surface. A rubber ring is disposed inside of the cylindrical body, and has an uneven portion on an inner peripheral surface and a stopper portion protruding inward.

A grooved joint adapter includes a cylindrical body having an insertion port formed in one end, a groove formed in an outer peripheral surface of the other end, a guide portion formed on an interior thereof, first coupling portions on both outer surfaces thereof, and a fixing portion protruding from an inner peripheral surface thereof. A pipe socket has second coupling portions on both outer surfaces and a protrusion formed on one surface. A pressure ring is disposed on an insertion port side and has both ends separated from each other. A stopper ring is disposed inside of the guide portion, and has both ends separated from each other and one or more wedge sawteeth on an inner peripheral surface. A rubber ring is disposed inside of the cylindrical body, and has an uneven portion on an inner peripheral surface and a stopper portion protruding inward.

A coupling manifold assembly has both regulated and unregulated flow orientations and includes a manifold body and a pressure regulator couplably received into the manifold body. The manifold body includes a pair of connection ports between which flow is movable through the manifold body, with the pressure regulator being received into a flow path between the connection ports. The pressure regulator is configured to regulate flow in a first direction between the connection ports and to allow for unregulated flow in an opposite second direction between the connection ports.

A coupling manifold assembly has both regulated and unregulated flow orientations and includes a manifold body and a pressure regulator couplably received into the manifold body. The manifold body includes a pair of connection ports between which flow is movable through the manifold body, with the pressure regulator being received into a flow path between the connection ports. The pressure regulator is configured to regulate flow in a first direction between the connection ports and to allow for unregulated flow in an opposite second direction between the connection ports.

Provided is a pipe connecting sealing member including a projection part includes a body part that is provided between the outer surface of the pipe and the inner surface of the connector to which the pipe is inserted, and is formed to extend in a ring shape along a circumferential direction; and the projection part that is formed in a spiral shape forming an unlimited orbit and projects along the outer surface of the body part.

Provided is a pipe connecting sealing member including a projection part includes a body part that is provided between the outer surface of the pipe and the inner surface of the connector to which the pipe is inserted, and is formed to extend in a ring shape along a circumferential direction; and the projection part that is formed in a spiral shape forming an unlimited orbit and projects along the outer surface of the body part.

The invention relates to a force generator for generating a linear pressure force, including a housing, an output wedge displaceably arranged in the housing, and a drive wedge for transmitting an externally exerted pressing force into a linear movement of the output wedge. The output wedge is connected to a first pressure element. The housing is connected to a second pressure element. A force applied to the drive wedge causes displacement of the first pressure element relative to the second pressure element. The force generator solves the technical problem of providing a high pressure force and using the known press jaws for this purpose.

Provided is a gasket, and more particularly, to a gasket including a C-ring end formed at at least one side of a kammprofile. According to the present invention, a higher bolting force and restoring force may be secured than those of other gaskets having the same size as the gasket. Furthermore, a core spring may be easily fixed and attached to the gasket through the C-ring end formed at the kammprofile without an external jacket. Accordingly, production costs may be decreased by simplifying the structure of the gasket as described above.