An apparatus for the separation or liquefaction of a gas at cryogenic temperatures which comprises an isolated chamber comprises at least one front distillation column operating at cryogenic temperatures and also a pipe for transferring fluid coming from or going to the column, the pipe having a diameter D comprising a bend for changing the direction of flow of the fluid, with profiled deflector vanes placed inside the bend, with their concavity towards the centre of the bend forming a plurality of ducts.

A coupling may be configured to receive and secure an insertion end of a conduit. An outer surface of the insertion end of the conduit may be smooth and free of grooves, flanges and beads. A first member of the coupling may define a first passageway. A second member of the coupling may define a second passageway. The first member may be in engagement with the second member. A gripping ring having an inner edge defining a series of teeth may be disposed within the second member. A support ring and O-ring may also be disposed within the second member.

In various implementations, a hydraulic fracturing piping system may include one or more rotatable elbows to connect other components of the hydraulic fracturing piping system. Using rotatable elbows may facilitate connections in the hydraulic fracturing piping system. For example, when using a rotatable elbow, in the assembly of the system, the rotatable elbow may be capable of rotating to different positions to facilitate alignment of the hydraulic fracturing manifold and hydraulic fracturing stack (e.g., christmas tree), when the hydraulic fracturing manifold and the hydraulic fracturing stack are not in alignment. In some implementations, the elbow may include an internal radial transition (e.g., of approximately 90 degrees) to control the media being injected into the wellbore. The internal radial transition of the elbow may create a more uniform media flow and/or less turbulence, which may significantly reduce erosion of the inner surfaces the bore of the elbow.

In various implementations, a hydraulic fracturing piping system may include one or more rotatable elbows to connect other components of the hydraulic fracturing piping system. Using rotatable elbows may facilitate connections in the hydraulic fracturing piping system. For example, when using a rotatable elbow, in the assembly of the system, the rotatable elbow may be capable of rotating to different positions to facilitate alignment of the hydraulic fracturing manifold and hydraulic fracturing stack (e.g., christmas tree), when the hydraulic fracturing manifold and the hydraulic fracturing stack are not in alignment. In some implementations, the elbow may include an internal radial transition (e.g., of approximately 90 degrees) to control the media being injected into the wellbore. The internal radial transition of the elbow may create a more uniform media flow and/or less turbulence, which may significantly reduce erosion of the inner surfaces the bore of the elbow.

One or more techniques and/or systems are disclosed for improving a fluid stream profile in the flow of fluid through a fire monitor system. An exemplary technique involves a flow elbow having a first rib, a second rid, and a gap between the first rib and the second rib. The gap can be configured to allow fluid to flow through the gap to reduce turbulence in the flow of fluid through the elbow.

One or more techniques and/or systems are disclosed for improving a fluid stream profile in the flow of fluid through a fire monitor system. An exemplary technique involves a flow elbow having a first rib, a second rid, and a gap between the first rib and the second rib. The gap can be configured to allow fluid to flow through the gap to reduce turbulence in the flow of fluid through the elbow.

In various implementations, a hydraulic fracturing piping system may include one or more rotatable elbows to connect other components of the hydraulic fracturing piping system. Using rotatable elbows may facilitate connections in the hydraulic fracturing piping system. For example, when using a rotatable elbow, in the assembly of the system, the rotatable elbow may be capable of rotating to different positions to facilitate alignment of the hydraulic fracturing manifold and hydraulic fracturing stack (e.g., christmas tree), when the hydraulic fracturing manifold and the hydraulic fracturing stack are not in alignment. In some implementations, the elbow may include an internal radial transition (e.g., of approximately 90 degrees) to control the media being injected into the wellbore. The internal radial transition of the elbow may create a more uniform media flow and/or less turbulence, which may significantly reduce erosion of the inner surfaces the bore of the elbow.

In various implementations, a hydraulic fracturing piping system may include one or more rotatable elbows to connect other components of the hydraulic fracturing piping system. Using rotatable elbows may facilitate connections in the hydraulic fracturing piping system. For example, when using a rotatable elbow, in the assembly of the system, the rotatable elbow may be capable of rotating to different positions to facilitate alignment of the hydraulic fracturing manifold and hydraulic fracturing stack (e.g., christmas tree), when the hydraulic fracturing manifold and the hydraulic fracturing stack are not in alignment. In some implementations, the elbow may include an internal radial transition (e.g., of approximately 90 degrees) to control the media being injected into the wellbore. The internal radial transition of the elbow may create a more uniform media flow and/or less turbulence, which may significantly reduce erosion of the inner surfaces the bore of the elbow.

An improved gooseneck used for filling drywall mud from a pump to an automatic taping machine that allows the drywaller to attach a garden hose to the gooseneck to deliver water to the taping machine's interior cavity during cleanup. In one embodiment, the improved gooseneck includes an upper pump plate with an inlet port with internal threads compatible with a standard threaded male hose connector. In a second embodiment, a standard gooseneck is used with an adapter plate configured to be disposed between the gooseneck's upper pump plate and the pump's outlet port. The adapter plate includes a two connector bores and a center entrance port with internal threads compatible with a standard threaded male hose connector. When assembled, the connector bores and entrance port are axially aligned with connector holes or slots and input port on upper pump plate. Also disclosed is a method for cleaning the taping machine's interior cavity using one of the two embodiments and a garden hose that dispenses water used to clean the taping machine.

An improved gooseneck used for filling drywall mud from a pump to an automatic taping machine that allows the drywaller to attach a garden hose to the gooseneck to deliver water to the taping machine's interior cavity during cleanup. In one embodiment, the improved gooseneck includes an upper pump plate with an inlet port with internal threads compatible with a standard threaded male hose connector. In a second embodiment, a standard gooseneck is used with an adapter plate configured to be disposed between the gooseneck's upper pump plate and the pump's outlet port. The adapter plate includes a two connector bores and a center entrance port with internal threads compatible with a standard threaded male hose connector. When assembled, the connector bores and entrance port are axially aligned with connector holes or slots and input port on upper pump plate. Also disclosed is a method for cleaning the taping machine's interior cavity using one of the two embodiments and a garden hose that dispenses water used to clean the taping machine.