A coupling assembly having first and second sleeves configured to be tightened to a fluid conduit, a radial-split gasket configured to be positioned between the sleeves and the fluid conduit and having an outer gasket layer and a separate inner gasket layer configured to be selectively disengaged from each other, an inner circumferential surface of the outer gasket layer and/or an outer circumferential surface of the inner gasket layer comprising a plurality of circumferentially spaced retaining protrusions interfacing between the inner and outer gasket layers, each of the retaining protrusions having a separation portion and an engagement portion connected to the other gasket layer by a gasket layer connection such that the engagement portion will separate at the separation portion under an applied separation force prior to the engagement portion separating at the gasket layer connection.

An indicator assembly includes a fastener defining a first end, a second end opposite the first end, and an axis extending from the first end to the second end; a first indicator positioned radially outwardly of the fastener relative to the axis of the fastener; and a second indicator positioned radially outwardly of the fastener relative to the axis of the fastener, wherein the second indicator is axially in between the first indicator and the second end of the fastener upon the fastener being oriented in a first position, and wherein the second indicator is radially inwardly or radially outwardly of the first indicator upon the fastener being oriented in a second position.

A valve having a hollow body which extends along a main axis (X), in which at least one secondary body is arranged at one end of the hollow body substantially coaxial to the main axis (X) and has an inner end portion with a collar protruding towards the inner surface of the hollow body is disclosed. The hollow body has at least one annular groove in which a ring is arranged at least partially to prevent the movement of the secondary body towards the end of the hollow body, in which the ring is divided into at least two arcs configured to be inserted individually inside the groove of the hollow body to form the ring.

A coolant connecting piece (100) for conducting coolant between a first housing (201, 503) and a second housing (203, 507). The coolant connecting piece (100) comprises a cylindrical main body (101) with a coolant channel formed on an inner side of the main body (101), and a protective ring (103) with a drip edge (117), wherein a cross-section of the protective ring (103) is greater than a cross-section of the main body (101), and wherein the drip edge (117) is configured to let condensate running off on an outer side of the main body (101), opposite the inner side, drip off into a predetermined region (213).

The present inventive concept relates to a method of manufacturing a pipe packing inserted into a housing having a hollow body shape to prevent fluid flowing inside a pipe from leaking to the outside, the method including: manufacturing the pipe packing by injecting molten rubber into a mold assembly having an outer mold and an inner mold, wherein the pipe packing is configured as a hollow body and comprises an outer circumferential part located outside of the pipe relative thereto, opposite surfaces provided in directions toward a middle of the pipe packing at opposite ends of the outer circumferential part, and an inner circumferential part provided toward a center portion of the opposite surfaces therefrom, wherein the inner circumferential part has a gap provided therein to be divided into opposite inner circumferential parts.

The present inventive concept relates to a method of manufacturing a pipe packing inserted into a housing having a hollow body shape to prevent fluid flowing inside a pipe from leaking to the outside, the method including: manufacturing the pipe packing by injecting molten rubber into a mold assembly having an outer mold and an inner mold, wherein the pipe packing is configured as a hollow body and comprises an outer circumferential part located outside of the pipe relative thereto, opposite surfaces provided in directions toward a middle of the pipe packing at opposite ends of the outer circumferential part, and an inner circumferential part provided toward a center portion of the opposite surfaces therefrom, wherein the inner circumferential part has a gap provided therein to be divided into opposite inner circumferential parts.

Segmental duct coupler devices, systems, and methods are provided herein. A duct coupler device can include a single, discrete body of material for welding to a duct segment. A system, including a duct segment having a duct coupler device welded thereto, is provided. The connection or points of connection between the duct coupler device and the duct segment in the system are devoid of internal and/or external seals. The duct coupler device and system can be cast in concrete. Multiple concrete segments can be assembled together to form a bridge, a roadway, a building, a slab, or any other structure.

A termination fitting assembly for use with a conduit includes the conduit comprising a primary pipe positioned centrally within a secondary pipe along a longitudinal axis of the conduit and the conduit having an interstitial space defined between the primary pipe and secondary pipe. The termination fitting assembly includes an interior fitting having an inner wall and an outer wall, the inner wall sized and shaped for insertion into and sealing with the primary pipe, and the outer wall extending circumferentially around the secondary pipe of the conduit. The termination fitting assembly includes an annular channel defined between the inner wall and the outer wall of the interior fitting and in fluid communication with the interstitial space of the conduit and an exterior fitting positioned around the conduit.

A system includes a conduit and a gasket assembly. The conduit includes a body and has a bell defining an opening disposed at one end of the conduit. The bell includes a ridge defining a circumferential internal groove, a sloping portion defining an internal recessed area and disposed adjacent to the ridge, and an abutment end inwardly extending from the sloping portion in a direction that is perpendicular to a central axis defined by the bell. The gasket assembly is disposed within the internal groove. The gasket assembly includes a plurality of gripping inserts each comprising a hollow body and an elastomeric gasket having a circular shape and being disposed within the hollow bodies defines by the plurality of gripping inserts.

A socket unit for a capillary connection system, especially for use in HPLC applications, includes a housing with a housing outer surface and a housing inner surface that define a housing axial cavity. The socket unit also includes a socket connecting mechanism adapted to engage with a corresponding plug connecting mechanism of a plug unit to connect the plug unit and the socket unit together, wherein the socket connecting mechanism is adapted for a predetermined number of discrete connection states between the socket unit and the plug unit.