A pipe coupling device includes a body configured to connect a first pipe segment to a second pipe segment, a sealing device carried by the body, and an activation unit. The sealing device includes a circumferential element including a first material and a peripheral element connected to an edge of the circumferential element and including a second material that is different from the first material. The activation unit is configured to adjust the sealing device to an activated state in which the sealing device extends radially from the body to form at least a portion of a seal with a pipe that surrounds the body, such that the seal fluidically isolates a first annular region between the first pipe segment and the pipe along a first side of the seal from a second annular region between the second pipe segment and the pipe along a second side of the seal.

A rotary gear box for a rotary drill rig having a rotary joint that includes a first conduit having a first end portion defining an exit, a second conduit having a second end portion defining an inlet, and a sealing arrangement positioned radially between the first end portion of the first conduit and the second portion of the second conduit. The second conduit is rotatable relative to the first conduit and is arranged coaxial with the first conduit. The first end of the first conduit is received within the second end of the second conduit such that the exit of the first conduit is downstream from the sealing arrangement.

A tube infrastructure includes a first tube; a second tube that is coupled to the first tube; and a fluid tank that is disposed to surround a coupling region of the first tube and the second tube and is filled with a fluid to seal the coupling region, wherein the fluid tank allows negative pressure to be maintained inside the first tube and the second tube.

A tube infrastructure includes a first tube; a second tube that is coupled to the first tube; and a fluid tank that is disposed to surround a coupling region of the first tube and the second tube and is filled with a fluid to seal the coupling region, wherein the fluid tank allows negative pressure to be maintained inside the first tube and the second tube.

A rotary gear box for a rotary drill rig having a rotary joint that includes a first conduit having a first end portion defining an exit, a second conduit having a second end portion defining an inlet, and a sealing arrangement positioned radially between the first end portion of the first conduit and the second portion of the second conduit. The second conduit is rotatable relative to the first conduit and is arranged coaxial with the first conduit. The first end of the first conduit is received within the second end of the second conduit such that the exit of the first conduit is downstream from the sealing arrangement.

A coupling device for a fluid transport tube (100) having an end provided with an internal chamfer (101), the device comprising a body (1) including a cylindrical wall (2) defining a channel (3) having an end segment provided with means for securing the tube end thereto in leaktight manner, these means including an elastically deformable annular sealing element (6) comprising a support ring (61) having an axially projecting first face from which there extends a tubular portion (62) having a free end (63) arranged to bear against the internal chamfer (101) of the tube end (100) in order to be forcibly engaged in the tube end while the tube is being inserted into the end segment.

A coupling device for a fluid transport tube (100) having an end provided with an internal chamfer (101), the device comprising a body (1) including a cylindrical wall (2) defining a channel (3) having an end segment provided with means for securing the tube end thereto in leaktight manner, these means including an elastically deformable annular sealing element (6) comprising a support ring (61) having an axially projecting first face from which there extends a tubular portion (62) having a free end (63) arranged to bear against the internal chamfer (101) of the tube end (100) in order to be forcibly engaged in the tube end while the tube is being inserted into the end segment.

An elastomeric press-in-place swivel fitting adaptor and a swivel fitting assembly using the adaptor are disclosed herein. The swivel fitting assembly includes retention and sealing features that allow it to be installed in a threaded port by hand. It is suitable for use in a variety of low pressure fluid passage and venting applications.

A piping joint connects a resin tube to a connection pipe having a protrusion formed on an outer peripheral surface of a distal end portion of the connection pipe. The piping joint includes a housing press-fitted into the resin tube and an elastically extendable and contractible seal member into which the connection pipe is inserted such that sealing is performed between the connection pipe and the seal member. The housing has a first housing portion positioned in one end portion and having an outer peripheral surface side press-fitted into the resin tube and a second housing portion positioned in the other end portion. The seal member has a first seal portion inserted on an inner peripheral surface side of the second housing portion.

A mechanical branch outlet includes: a housing defining: an outer surface; an inner surface; and an outlet bore extending between the outer surface and the inner surface; an insert defining: a wall; an axis; a rim extending radially outward from the wall with respect to the axis, the rim being a flange; a first end extending from the rim in a first axial direction aligned with the axis; and a second end extending from the rim in a second axial direction opposite from the first axial direction; the first end received fully within the outlet bore of the housing; the outlet bore of the housing configured to slidably receive the second end and retain the first end, an outer diameter of the rim being greater than an outer diameter of the second end.