In some implementations, a flowline connector assembly includes a first flowline member having a first cylindrical passageway, and a first stop extending radially outward from an outer surface of the first flowline member, and a second flowline member having an annular configuration defining a second cylindrical passageway. The flowline connector assembly may include a pin, having an annular configuration, configured to be inserted into the first cylindrical passageway and the second cylindrical passageway. The flowline connector assembly may include a collar where an inner surface of the collar at a first end is configured to contact a first side of the first stop, and the inner surface of the collar at a second end is configured to contact a first side of a second stop to connect the first flowline member with the second flowline member, where the second stop extends radially from the pin or the second flowline member.

A riser support assembly includes a riser support pipe comprising a sidewall defining a first end, a second end opposite the first end, and an intermediate portion extending therebetween, the intermediate portion configured to extend through an elevated support structure; and a mount extending from the sidewall, the mount configured to engage a mounting surface of the elevated support structure to support the riser support assembly on the mounting surface.

A pipe union assembly that includes a female end of a first pipe section and a male end of a second pipe section. The pipe union assembly also includes a quick union nut securable to the female end, a retainer collar securable to the quick union nut and a segmented load ring disposed between the male end of the second pipe section and the quick union nut. The quick union nut, the retainer collar and the segmented load ring cooperate to maintain the male end of the second pipe section inside the female end of the first pipe section. A method of using the pipe union assembly to join a first pipe section and a second pipe section.

A pipe-fitting device capable of easily connecting pipes having different diameters includes a fitting body and a pair of fixing nuts. The fitting body includes a first channel portion having a first inner diameter formed in a first inner side of the fitting body, a second channel portion having a second inner diameter formed in a second inner side of the fitting body, the second inner diameter being smaller than the first inner diameter such that a step is formed inside the fitting body at the boundary between the first channel portion and the second channel portion. Each fixing nut is rotatably coupled to a corresponding open end of the fitting body and configured to fix the corresponding one of the first pipe and the second pipe through rotational tightening.

A fitting includes a screw portion that is rotatable around an axis extending in one direction, an operating portion that applies a torque around the axis to the screw portion, and a rotation auxiliary member that is configured to be engageable with the operating portion. A slot extending from a first end to a second end is provided in the rotation auxiliary member, and also a first projection that protrudes outward is provided on the rotation auxiliary member. A positional relationship of the first projection is set such that an engaging force between the rotation auxiliary member and the operating portion is increased due to a change in width of the slot in a case where a force is applied to the first projection in the first rotation direction with the rotation auxiliary member engaging with the operating portion.

A fitting assembly configured to visibly indicate nut tightness when coupling a first component to a second component is disclosed. The fitting assembly comprises a nut comprising a threaded portion and a chamber portion, wherein the chamber portion comprises one or more through-holes. The fitting assembly also comprises an indicator slidably disposed within the chamber portion, a retainer assembly disposed within the chamber portion and configured to interlock with an inner surface of the nut, and a spring disposed within the chamber portion between, and engaging, the indicator and the retainer assembly. The retainer assembly is configured to interface with the spring to retain the spring within the chamber portion. The fitting assembly is configured to receive the first component and the second component such that, when the nut is rotated, a visibility of the indicator through the one or more through-holes changes.

[Problem] To provide a pipe joint allowing reliable connection to a pipe P without flaring.

[Means of solving problem] The pipe joint includes a flare joint body 1F, a cap nut 2, and a stop ring 3. A curved pressure-contacting slope surface 32 of the stop ring 3 contacts a slope surface 5 with reduced-diameter tip of the flare joint body 1F under pressure to establish sealing by means of mutual contact between metallic surfaces. The pipe P is grasped in a tightly pressure-contacting state using a back tooth and a front tooth formed at a tip head 37 of a substantially cylindrical thin part 35 of the stop ring 3.

A union connection common in connecting pipelines in various industries comprises a threaded female pipe end, a male pipe end insertable into the female pipe end to form a sealed connection, a plurality of shaped ring segments and a threaded collar in which the shaped ring segments are placed in a shaped groove on the male pipe and positioned in the threaded collar. The threaded female pipe end is then threaded onto the threaded collar, the threads each being clocked so as to press the collar against the male pipe using the ring segments and into a sealed connection with the female pipe. A pin inserted through a pin hole in the collar and into a pin recess in the female pipe end holds the parts in place. The pin hole and pin recess are positioned relative to the clocked threads of the collar and female pipe.

A connecting device for a sealed exchange of fluid between two components is disclosed. The connecting devices comprises a pipe portion with at least two pipe portion ends, wherein an extent of the pipe portion between the pipe portion ends determines a streamline of the fluid, and comprises a sealing element which at least partially surrounds the pipe portion. At least one of the pipe portion ends is configured to form an inflow and/or outflow region that extends over the clear dimension of the at least one pipe portion end.

A pipe union assembly that includes a female end of a first pipe section and a male end of a second pipe section. The pipe union assembly also includes a quick union nut securable to the female end, a retainer collar securable to the quick union nut and a segmented load ring disposed between the male end of the second pipe section and the quick union nut. The quick union nut, the retainer collar and the segmented load ring cooperate to maintain the male end of the second pipe section inside the female end of the first pipe section. A method of using the pipe union assembly to join a first pipe section and a second pipe section.