A pipe coupling includes a pipe branch, a hose, and a retainer. The pipe branch forms a proximal branch section, a distal branch section, and an expanded section with an increased diameter therebetween. The hose includes an opening that receives the proximal branch section and includes a proximal fold, a distal fold, and a gasket therebetween. The gasket is arranged to seal between the hose and the proximal branch section. The retainer is configured to enclose the pipe branch and the hose and forms a proximal flange and a distal flange. The proximal flange and the distal flange both extend inwardly and define a passage for the pipe branch, the passage having a diameter which is smaller than the increased diameter. The proximal flange engages the proximal fold and the distal flange engages the distal branch section. The pipe coupling provides an easy and reliable connection between vibrating machine components.

A pipe joint includes a hollow joint main body; a nut that is screwed into the joint main body; a seal member that is mounted to inside of the joint main body; and a retainer that is placed between the joint main body and the nut and comprises a pawl portion engaged with a trough of a metal flexible pipe in a coupled state and a retainer locking portion caught and locked inside of the joint main body in the coupled state.

A pipe connecting apparatus includes: a connector including a large diameter part having a hollow, into which a pipe is inserted, therein and in which at least any one of opposite ends of the hollow has a larger inner diameter such that an accommodation space is formed inside the one end of the hollow, and a pressing part continuously formed along a lengthwise direction of the large diameter part in a direction in which the pipe is inserted, having a smaller diameter than the large diameter part, and formed to surround an outer peripheral surface of the pipe; a ring-shaped sealing member provided in the accommodation space and surrounding the pipe on the outside of the pipe; and a grip member provided in the accommodation space to be adjacent to the sealing member.

A pipe connecting apparatus includes: a connector including a large diameter part having a hollow, into which a pipe is inserted, therein and in which at least any one of opposite ends of the hollow has a larger inner diameter such that an accommodation space is formed inside the one end of the hollow, and a pressing part continuously formed along a lengthwise direction of the large diameter part in a direction in which the pipe is inserted, having a smaller diameter than the large diameter part, and formed to surround an outer peripheral surface of the pipe; a ring-shaped sealing member provided in the accommodation space and surrounding the pipe on the outside of the pipe; and a grip member provided in the accommodation space to be adjacent to the sealing member.

Extendible slit tube members and methods for manufacturing extendible slit tube members are provided. In one aspect, an extendible member (10) comprises a laminated shell (2) of plural fibre reinforced layers (P1-P5) constructed and arranged to be configurable between a coiled form and an extended form. In the extended form (12) the shell is resiliently biased in the form of an elongate tube having longitudinal edges (14) defining a slit (3) along its length and wherein the shell can be opened out at the slit to assume a flattened form in which it can be wound about an axis extending transversely to its longitudinal direction to assume its coiled form (11). In the region of one or both longitudinal edges (50), the amount of reinforcing fibre is less than in the region between the edge regions (51). In another aspect, a flexible cord (40) may be attached along the edge of a shell.

Extendible slit tube members and methods for manufacturing extendible slit tube members are provided. In one aspect, an extendible member (10) comprises a laminated shell (2) of plural fibre reinforced layers (P1-P5) constructed and arranged to be configurable between a coiled form and an extended form. In the extended form (12) the shell is resiliently biased in the form of an elongate tube having longitudinal edges (14) defining a slit (3) along its length and wherein the shell can be opened out at the slit to assume a flattened form in which it can be wound about an axis extending transversely to its longitudinal direction to assume its coiled form (11). In the region of one or both longitudinal edges (50), the amount of reinforcing fibre is less than in the region between the edge regions (51). In another aspect, a flexible cord (40) may be attached along the edge of a shell.

A three-way pipe connector set for connecting pipes such as corrugated insulated pipes used for transporting hot water such as in central heating systems. The connector set can accommodate pipes of different diameter, and comprises a mating pair of a lid piece and bottom piece, each having three semi-circular edge portions that mate with the respective corresponding portions in the mating piece to form circular holes, the circular holes having adjacent edge grooves forming circular grooves when the pieces mate. The set includes at least two top hat pieces, each comprising a cylinder portion and a flange portion, the flange portion having an edge groove to fit an O-ring and configured to fit in a circular groove of the connector. Pipe gaskets are provided for each top hat piece that fit around a suitable pipe to form a tight seal between the pipe and connector.

A connection device for a pipe with an outer peripheral projection comprises a connection part with a receptacle for inserting a longitudinal portion of the pipe. The portion comprises the projection, therein. A central axis extends in an insertion direction. A peripheral wall extends around the central axis. A base surface is arranged transversely to the central axis for contacting the projection of the pipe or an end of the pipe. A ring element can be introduced into a gap between the peripheral wall and the pipe such that an axial end of the ring element blocks the projection and secures the pipe against moving out of the receptacle. A securing part is assigned to the connection part and has at least one deformable material portion which can be brought into a blocking position by deformation to form a block against the ring element moving out of the receptacle.

A pipe connector comprises a circular flange having a central opening. A downstream sleeve having a circular cylindrical form about an axis with a proximal end and a terminal distal end, is attached to the circular flange by the proximal end and comprises at least one first type of detent and at least one second type of detent.

The disclosure presents systems and methods for hot swapping pumps at a wellsite while minimizing the impact to the pumping operations. As one pump is swapped out, such as for maintenance, the remaining pumps in the set of pumps at the wellsite can continue pumping operations. In some aspects, the swapping of pumps can be performed by a user using a protection barrier to isolate the pump location where the pumps will be swapped. In some aspects, one or more of the steps to swap pumps can be performed through automation thereby minimizing danger to a user. In some aspects, the pump being located at the pump system can be primed and pressure tested prior to be located to improve the time to enable the pump for pumping operations.