A snubber includes a head portion, a shank portion, and a threaded portion. The shank portion is attached to the head portion, and the shank portion defines a shank diameter. The threaded portion is attached to the shank portion, and the threaded portion includes an external helical thread wrapped around a central shaft. The external helical thread defines a threaded diameter, and the central shaft defines a central shaft diameter. The shank diameter and the thread diameter are sized such that the shank portion and the threaded portion define at least one fluid flow path when the snubber is installed in a pressure sensor.

Missile flow lines are incorporated into frac manifolds, especially trailered or skidded frac manifolds. The missiles manifold the discharge from a plurality of pumps and comprise at least two junction fittings joined by spooled pipe. The junction fittings comprise a body having a primary bore and at least two feed bores. The intersections of the feed bores with the primary bore are offset axially from each other along the primary bore. The junction fittings are joined by flange unions to at least one spooled pipe such a that the junction fittings and spooled pipe form a conduit including the primary bores. A discharge line from a pump may be joined to each feed union face of the junction fittings by a flange union. Thus, the discharge from the pumps may be manifolded into the conduit.

A pipe rehabilitation system and/or robot can be used inside a pipe to measure characteristics of branch conduits, install plugs into branch conduits before the pipe is lined with a liner, remove portions of plugs and liners after lining to restore fluid communication between the pipe and branch conduits, and/or install fittings into the branch conduits to connect the liner to the branch conduits. A probe can measure characteristics of a branch conduit. A tool can install plugs and/or fittings into the branch conduits. A linkage can connect a tool to a robotic tractor so that the connected elements can navigate through a main pipe. A visualization system can aid in aligning a robot with a branch conduit. Height-adjustable braces can support robotic tools in a pipe. A plug can include integrated locating features and/or movable parts that enable expanding the plug to seal with the branch conduit.

A pipe rehabilitation system and/or robot can be used inside a pipe to measure characteristics of branch conduits, install plugs into branch conduits before the pipe is lined with a liner, remove portions of plugs and liners after lining to restore fluid communication between the pipe and branch conduits, and/or install fittings into the branch conduits to connect the liner to the branch conduits. A probe can measure characteristics of a branch conduit. A tool can install plugs and/or fittings into the branch conduits. A linkage can connect a tool to a robotic tractor so that the connected elements can navigate through a main pipe. A visualization system can aid in aligning a robot with a branch conduit. Height-adjustable braces can support robotic tools in a pipe. A plug can include integrated locating features and/or movable parts that enable expanding the plug to seal with the branch conduit.

Flowline junction fittings are assembled to missiles of frac manifolds. The fittings have a body with a primary bore, at least four secondary bores, and a tertiary bore. The bores extend from union faces adapted for connection to flowline components by a flange union. The tertiary bore intersects with the primary bore at an angle of approximately 90. Goat head fittings are assembled to well heads. The goat heads have a body with a primary bore and at least four secondary bores. The bores extend from union faces adapted for connection to flowline components by a flange union. The intersections between the secondary bores and the primary bore have an interior angle of substantially less than 90.

Flowline junction fittings are assembled to missiles of frac manifolds. The fittings have a body with a primary bore, at least four secondary bores, and a tertiary bore. The bores extend from union faces adapted for connection to flowline components by a flange union. The tertiary bore intersects with the primary bore at an angle of approximately 90. Goat head fittings are assembled to well heads. The goat heads have a body with a primary bore and at least four secondary bores. The bores extend from union faces adapted for connection to flowline components by a flange union. The intersections between the secondary bores and the primary bore have an interior angle of substantially less than 90.

Missile flow lines are incorporated into frac manifolds, especially trailered or skidded frac manifolds. The missiles manifold the discharge from a plurality of pumps and comprise at least two junction fittings joined by spooled pipe. The junction fittings comprise a body having a primary bore and at least two feed bores. The intersections of the feed bores with the primary bore are offset axially from each other along the primary bore. The junction fittings are joined by flange unions to at least one spooled pipe such that the junction fittings and spooled pipe form a conduit including the primary bores. A discharge line from a pump may be joined to each feed union face of the junction fittings by a flange union. Thus, the discharge from the pumps may be manifolded into the conduit.

The present disclosure relates to a measuring tube for conveying a liquid, comprising a tubular section and at least one tubular branch for accommodating at least one component of a measuring device. A first end region of the tubular branch is arranged at or in an opening in a wall along a longitudinal axis of the tubular section. According to the disclosure all points of at least a first portion of the wall, such as an inner surface of the wall, of the tubular section, which first portion defines the opening, are located in a plane. Furthermore, the present disclosure relates to an arrangement for determining or monitoring at least one process variable of a liquid in a pipeline, comprising a measuring device and a measuring tube of the disclosure.

A hydraulic assembly has a hydraulic unit having a hydraulic unit body, in which a delivery channel is formed, the hydraulic unit body having a hydraulic unit body base, in which an inlet mouth is formed. The hydraulic assembly has a connection having a feed pipe for receiving a hydraulic fluid and an eyelet for outputting the hydraulic fluid, the eyelet delimiting an eyelet hole and having an upper eyelet sealing surface and a lower eyelet sealing surface. The hydraulic assembly has a pipe union having a hollow cylindrical body for receiving the hydraulic fluid from the eyelet and introducing the hydraulic fluid into the delivery channel and a pipe union head, an upper gasket and a lower gasket. The connection has a shoulder having a lower projection not interfering with the lower gasket. The connection is coupled in a fail-proof manner to the hydraulic unit, preventing the hydraulic unit from rotating during assembly and use.

A snap fitting for use in plumbing is provided. The snap fitting includes a main body formed of plastic and shaped to extend partially around a cylindrical pipe to snap over the pipe and an inset for extending from an interior side of the main body into a hole in the cylindrical pipe.