Embodiments of a portable verification system can move from one in-field gas flow meter location to another and temporarily connect downstream of a main pipeline's meter run or station. A control valve of the portable verification system allows volume measurement at different flow velocities to be verified. In some embodiments, the portable verification system is connected to the meter run and the main pipeline by a corresponding slip or linearly adjustable pipeline section. This section can extend horizontally and vertically, as well as swivel to provide versatility when connecting in the field. Adaptor fittings having one flange sized for and fitted to the inlet and outlet ends of the portable verification system and another flange sized for the meter run or main pipeline connection provide additional versatility. Downtime is limited to the time required to complete a circuit between the meter run, portable verification system, and main pipeline.

A high pressure tube compression fitting/flared fitting for use in combination with a thick-walled tube and a connection body wherein a sleeve is in engagement with a thick-walled tube. The sleeve is generally cylindrically shaped with the exterior thereof coated and then etched. The sleeve includes a first and second sharp inner circumferential biting edges which interengage and bite into and through the exterior of the end portion of the thick-walled tube and into the wall portion of the end portion of the thick-walled tube without narrowing the passageway through the thick-walled tube. The process for making the fitting includes placing an end portion of the thick-walled tube into engagement with a tube engaging surface of a tapered generally cylindrical wall of a guide rod.

A fitting (30) for fluid communication with a fluid conduit includes a first fluid conduit connection portion (42), a second fluid conduit connection portion (42), a header (60) disposed axially between the first fluid conduit connection portion and the second fluid conduit connection portion, and a socket (70). A fluid fitting may include a nipple (40), a radial projection (48) connected to the nipple, and an axial protrusion (120) extending from the radial projection. The axial protrusion may be configured to protrude into an axial end of a fluid conduit (80). A fluid fitting may include a fluid conduit connection portion (42) and a dynamic tip (130) connected to an end of the fluid conduit connection portion. The dynamic tip may be configured to expand in response to an increase in fluid pressure.

A fitting is configured to couple a portion of a frame of a turbine and a bearing housing on an aircraft engine. The fitting includes a first receptacle configured to seat a tube that is configured to convey oil or air, and at least a second receptacle configured to seat a corresponding at least two bolts associated with the bearing housing, wherein the fitting comprises sections between the first receptacle and the at least a second receptacle that have a material thickness in a range of 3.175 millimeters and 6.35 millimeters.

A wave washer includes an annular member surrounding an opening arranged to receive a pipe axially therethrough, the annular member having a plurality circumferentially spaced holes formed therein. The wave washer also has associated with it at least one spring portion protruding axially from the annular member between two of the holes. The wave washer can be used in a pipe joint to join a first pipe and a second pipe, each having a pipe end having a pipe flange and an adjacent sealing flange. The wave washer is positioned against an inner side of the pipe flange of the first pipe. The wave washer and the flanges of the first and second pipes are fastened based on the deflection of the annular member of the wave washer.

Disclosed is a closure for ducts or receptacles for pressurized fluids, including an annular supporting structure (10), which defines an opening (11) for accessing the duct or receptacle, and a hatch (30), connected in an articulated manner to the supporting structure (10), with the ability to move between a closed position and an open position, wherein the supporting structure (10) includes a sealing surface (13), characterized in that it includes a sealing element (20) that can be positioned in the opening (11), the sealing element (20) including an expansible portion (21) with an inner surface (24) facing the duct and an outer surface (23) facing the sealing surface (13), the expansible portion (21) being able to expand as a result of the pressure of the fluid that acts on the inner surface (24) so that the outer surface (24) is placed in contact with the sealing surface (13).

Couplings and gaskets are disclosed. Couplings may include an upper housing, a lower housing, at least one fastening device coupling the upper housing to the lower housing, and a gasket positioned within the upper and lower housings, the gasket including two primary seals and a rib protruding from an inner surface of the gasket and between the two primary seals.

Fluid couplings examples are disclosed in examples herein. An example printer includes a housing; and a fluid reservoir permanently fixed within the housing, the fluid reservoir having a capacity sufficient to store enough ink to print a number of pages that corresponds to an expected useful life of the printer.

Fluid couplings examples are disclosed in examples herein. An example printer includes a housing; and a fluid reservoir permanently fixed within the housing, the fluid reservoir having a capacity sufficient to store enough ink to print a number of pages that corresponds to an expected useful life of the printer.

A mechanical coupling for joining pipe elements end to end has a channel that receives a ring seal. The channel is defined by oppositely disposed sidewalls and the ring seal has lobes on opposite sides. The lobes have surfaces facing the side surfaces of the channel. When the ring seal is seated within the channel, each lobe surface contacts a respective side surface such that the lobes deform inwardly toward the center of the channel.