A hose assembly includes a hose, a connector body, and a collar. The connector body has an outer end portion defining a fluid connector, an inner end defining a nose portion received in an inner bore of the hose end portion, and an intermediate portion including first and second annular flanges spaced apart to define a dog lock groove. The collar includes an outer end portion defining an inner radial dog lock received in the dog lock groove, an annular step portion extending radially outward of and axially inward of the dog lock in axial alignment with the first annular flange, and an inner end portion extending radially outward of and axially inward from the step portion, the inner end portion being in radial compression against an outer surface of the hose end portion.

An extendable hose coupler having an outer tube having a first end and a second end, and an inner tube having a first end and a second end, wherein the inner tube and first end of the inner tube is positioned within the outer tube, and the inner tube is slidable within the outer tube to provide a varying distance between ends of the inner and outer tubes to provide the extendable hose coupler with an adjustable length, a connector having a first end positioned over an end of the outer tube and a second end positioned over the inner tube, wherein the connector is tightly secured to the inner and outer tubes. A method of providing an extendable hose coupler having a variable length is also provided.

A multi-lumen hose connector nipple and a multi-lumen hose equipped therewith. The multi-lumen hose connector nipple includes a nipple basic section through which a plurality of separate fluid conduits extend in each case between a first and a second nipple connector side, a plurality of hose lumen plug-in sockets integral with the nipple basic section, which sockets extend juxtaposed on the first nipple connector side with an intermediate hose lumen wall accommodation space left therebetween, wherein a socket interior space of each of the hose lumen plug-in sockets is assigned to a respective one of the fluid conduits and opens out axially, and a socket strutting structure within the socket interior space of at least one of the hose lumen plug-in sockets.

A press fitting for a pipe connection is provided. The press fitting comprises a fitting body for connecting the press fitting to a pipe, a substantially cylindrical pressing sleeve fixed to the fitting body and having a pressing area, and a stop ring fixed to the pressing sleeve and limiting the pressing area in an axial direction of the press sleeve. The stop ring has a substantially cylindrical inner contour with protruding first regions and second regions receding from the first regions. The first areas of the first stop ring encompass an outer contour of the pressing sleeve in a clamping manner. The second areas of the stop ring are spaced from the outer contour of the pressing sleeve.

A mounting group for a press fitting is provided. The mounting group includes cylindrical pressing sleeve with a pressing area and a stop ring fixed to a first axial end of the pressing sleeve and limiting the pressing area in an axial direction of the pressing sleeve. The stop ring has a first inner contour on a side opposite the pressing area and as a first circular segment and a second circular segment, which extends over a smaller part of the first inner contour than the first circular segment. The stop ring has a constant cross-section in the region of the first circular segment and an element arranged in the region of the second circular segment which projects inwardly beyond the constant cross-section of the first circular segment and causes a tilting of an axis of symmetry of the pressing sleeve.

A garden hose has an inner tube for conveying water at domestic water pressure from a first coupler disposed at a first end of the inner tube to a second coupler disposed at a second end of the inner tube, the inner tube being waterproof and flexible, the first coupler adapted to threadedly connect to a conventional water faucet and the second coupler adapted to threadedly connect to a conventional garden appliance. The hose has a metal sheath disposed over the inner tube and extending from the first coupler to the second coupler, the flexible metal sheath having a first shoulder near the first coupler and a second shoulder near the second coupler, the metal sheath being flexible, and a fabric sheath disposed over the metal sheath and fixed to the metal sheath by a first constricting band disposed at the first shoulder and a second constricting band disposed at the second shoulder.

A pipe joint for coupling to at least one pipe is disclosed in the present invention. The pipe joint includes a main body and at least one positioning socket. The main body has a runner and at least one opening communicated with the runner. The runner has an insertion area adjacent to the opening. The positioning socket has a head, an inserting portion, a pipe channel, a radial threaded hole and a bolt. The inserting portion is inserted into the runner via the opening. The pipe channel runs through the head and the inserting portion in an axial direction of the positioning socket. The threaded hole is formed on the head and communicated with the pipe channel. The bolt is adapted to engage with the threaded hole for abutting against the outer surface of the pipe.

A hose fitting assembly for a collapse-resistant hose, includes a sleeve having a forward and rearward sleeve end portion, the rearward sleeve end portion having an opening adapted to receive a hose end portion; a fitting having an optionally flared rearward fitting end portion operatively coupled to the forward sleeve end portion, the rearward fitting end portion having an internal surface forming an internal cavity configured to receive the hose end portion; and an optionally threaded nipple operatively couplable to the fitting and extending rearwardly through the internal cavity of the fitting, the nipple being configured to fit within an internal hose passage. The fitting assembly may include a seal mounted in fitting and sealable against the core tube upon crimping. The fitting assembly may include a support ring between skived and unskived hose regions. A collapse-resistant hose includes a carcass with an optional unbonded sacrificial layer is also provided.

A ferrule for mounting a hose to a hose adapter, the ferrule including a substantially cylindrical hollow structure extending between a proximal end and a distal end, a flange at the proximal end of the ferrule that is configured to be connected to the hose adapter, and either one or more openings or compressible grooves formed on the flange that are configured to be compressed upon either swaging or crimping the flange to the hose adapter.

A hydraulic fracturing system for fracturing a subterranean formation includes an electric powered pump having an inlet and an outlet, the outlet coupled to a well associated with the subterranean formation and powered by at least one electric motor. The system also includes a fluid source, coupled to the inlet of the electric powered pump, the fluid source providing a slurry for injection into the subterranean formation. The system further includes a hose extending between the fluid source and the electric powered pump, the hose being flexible and having a first diameter. The system includes a fitting between the hose and the electric powered pump, the fitting having a first end for receiving the hose at the first diameter and a second end for coupling to the electric powered pump at a second diameter, the second diameter being larger than the first diameter.