A swivel connector for a spray gun includes a first portion, the first portion including a first interior passage that extends entirely through the first portion along a longitudinal axis and a second a second interior passage that extends along a first axis perpendicular to the longitudinal axis. The swivel connector also includes a second portion coupled to the first portion, the second portion including a third interior passage that extends entirely through the second portion along the longitudinal axis, and a fourth interior passage that extends along a second axis perpendicular to the longitudinal axis. The swivel connector also includes a connector pin coupled to both the first portion and the second portion, wherein the connector pin includes a fifth interior passage that extends along the longitudinal axis.

A washing bucket has a container with an interior defined by wall and a bottom, the fluid inlet affixed to the wall of the container, and a fluid outlet opening through the wall of the container. The fluid outlet is positioned at a level higher than a level of the fluid inlet. The fluid inlet communicates with the interior of the container. The fluid inlet is positioned adjacent to the bottom of the container. In particular, the fluid inlet is a tubular member having a plurality of openings. This plurality of openings opens to the interior of the container.

An apparatus for providing a preload to mated pipes including a ring-shaped body formed by a sidewall and an attachment structure on a portion of the body. The ring-shaped body includes an aperture that extends through the sidewall. The attachment structure corresponds to an attachment portion of a pipe in the mated pipes and the attachment structure enables removable fastening of the body to the pipe. The apparatus may further include an adjustable preload mechanism that can be removably attached to the body to hold the body in a preloaded position. The preload mechanism can be adjusted to release a portion of the preload held by the body.

The disclosed invention is a union connection common in connecting pipelines in various industries comprising a threaded female pipe end, a male pipe end insertable into the female pipe end to form a sealed connection, a plurality of shaped ring segments and a threaded collar in which the shaped ring segments are placed in a shaped groove on the male pipe and positioned in the threaded collar. The threaded female pipe end is then threaded onto the threaded collar, the threads each being clocked so as to press the collar against the male pipe using the ring segments and into a sealed connection with the female pipe. A pin inserted through a pin hole in the collar and into a pin recess in the female pipe end holds the parts in place. The pin hole and pin recess are positioned relative to the clocked threads of the collar and female pipe.

A method for connecting tubes includes fastening a position locator to an outer surface of a tube at a predetermined depth from a first end of a tube such that at least one ferrule abuts a flange of the position locator between the first end of the tube and the position locator. A tube connector assembly is formed by introducing a compression nut such that an inner wall of the compression nut surrounds the position locator and the at least one ferrule. A fitting body is introduced via the first end of the tube. The tube connector assembly is fastened to the fitting body using a first threading on the inner wall of the compression nut and a second threading on an outer wall of the fitting body such that the at least one ferrule is between the compression nut and the fitting body.

The composition according to the present embodiment is a composition for forming a lubricant coating layer on a threaded connection for pipes or tubes, and contains Cr.sub.2O.sub.3, a metal soap, a wax and a basic metal salt of an aromatic organic acid. The threaded connection for pipes or tubes according to the present embodiment includes a pin and a box. The pin and the box each include a contact surface including a threaded portion. The threaded connection for pipes or tubes includes, as an outermost layer, a lubricant coating layer formed from the aforementioned composition on at least one of the contact surfaces of the pin and the box.

A coupler for connecting to a port, and a method for connecting a coupler to a port are provided. The coupler includes a body, a plunger needle, and a threaded portion. The body includes a radially outward facing surface, a radially inward facing surface, a proximal end, and a distal end. The plunger needle is fixed to the body, and extends in parallel with the body toward the distal end of the body. The threaded portion extends circumferentially around at least a portion of the radially outward facing surface of the body toward the distal end of the body, the threaded portion configured to receive a threaded portion of the port.

An assembly for connecting tubes includes a tube connector assembly and an assembly guide for positioning the position locator of the tube connector assembly. The tube connector assembly includes a position locator having a hollow cylindrical shape and configured to be fastened to an outer surface of a tube at a predetermined depth from a first end of the tube, at least one ferrule to be coaxially positioned against a first side of the position locator, and a compression nut to be coaxially positioned against a second side of the position locator opposite to the first side of the position locator. When the assembly guide is engaged with the tube connector assembly and a tube is inserted into a cavity of the compression nut, the length from the first end of the tube to the position locator is equivalent to the predetermined depth.

Disclosed is a through fastening unit including a pipe-receiving structure located at a ceiling, the pipe-receiving structure being fixed to the ceiling while surrounding a reducer, an attachment and detachment member configured to surround the reducer between the pipe-receiving structure and the reducer, and a tightening pipe configured to cover the attachment and detachment member together with the reducer in the vicinity of the attachment and detachment member and to surround the reducer between the pipe-receiving structure and the attachment and detachment member, the tightening pipe being screw-engaged with the pipe-receiving structure, wherein the tightening pipe moves relative to the pipe-receiving structure in a longitudinal direction of the reducer between the pipe-receiving structure and the attachment and detachment member to bring the attachment and detachment member into tight contact with the reducer or to separate the attachment and detachment member from the reducer.

A metal tubular connecting part includes a total axial length, an inner surface, and an outer surface. The inner and outer surfaces delimit a wall, an outer transition surface, and an inner transition surface. The outer transition surface and the inner transition surface delimit a transition thickness of the wall. A first threaded end is defined by a first outer surface portion extending over a first axial length. A second threaded end is defined by a second inner surface portion extending over a second axial length. The sum of the first axial length and the second axial length is less than or equal to the total axial length of the connecting part.