A mounting apparatus for mounting together a first pipe and a second pipe end to end. The mounting apparatus a first abutment member mountable on the first pipe at a predetermined distance from the end of the first pipe and a second abutment member mountable on the second pipe at a predetermined distance from the end of the second pipe. The apparatus further includes a sealing member locatable between the ends of the pipes and a tightening arrangement for urging the first and second abutment members mounted on the first and second pipes towards one another and thereby providing a seal between the pipes.

A fluid conduit system a first conduit section having a first conduit bore extending from a first end of the first conduit section to a second end of the first conduit section, the first conduit bore including a first beveled surface proximate the first end of the first conduit section. The fluid system also includes a second conduit section coupled to the first conduit section and having a second conduit bore extending from a first end of the second conduit section to a second end of the second conduit section, the second conduit bore including a second beveled surface proximate the first end of the second conduit section. The fluid system further includes a coating applied to the first beveled surface and to the second beveled surface.

A hammer union assembly has a male union, a female union having external threads adjacent at the end thereof, a wingnut having internal threads therein in which the external threads of the female union are engaged with internal threads of the wingnut, and a sleeve interposed between the wingnut and the male union. The male union has an end facing the end of the female union. The wingnut has four lugs extending outwardly of a body thereof. The internal threads of the wingnut have a non-full root radius. The internal threads have a flat at a major diameter thereof and a pair of flanks extending inwardly from opposite sides of the flat.

A hammer union assembly has a male union, a female union having external threads adjacent at the end thereof, a wingnut having internal threads therein in which the external threads of the female union are engaged with internal threads of the wingnut, and a sleeve interposed between the wingnut and the male union. The male union has an end facing the end of the female union. The wingnut has four lugs extending outwardly of a body thereof. The internal threads of the wingnut have a non-full root radius. The internal threads have a flat at a major diameter thereof and a pair of flanks extending inwardly from opposite sides of the flat.

The present invention provides a pipe union that uses mechanical advantage from leverage between a locknut with circumferential torque openings coupled to a tubular first portion and a torque ring with torque slots coupled to a tubular second portion to tighten the union. The tightening can occur without the need of a hammer impact on lugs. Initial tightening can at least partially align longitudinally the radial holes with the radial slots. Final tightening can occur by rotating the torque openings relative to the torque slots using mechanical advantage. Optionally, the pipe union can provide for a ratcheting mechanism to turn the locknut on the tubular first portion to engage the tubular second portion and exert a preliminary torque on the union. The pipe union design also provides a self-energizing elastomeric seal or metal seal. Angles on load shoulders can assist in creating preloads on the union to seal the components.

The present invention relates to a tube connecting device in particular for tubes having a flared end. Tube connecting device comprising a tube having a flared end defining a front surface and a rear surface; a threaded sleeve having a through opening for receiving the tube, a connector having a conical seating surface for receiving the front surface of the flared end and a threaded portion being meshable with the threaded sleeve, a ring arranged between the rear surface of the flared end and the threaded sleeve when the threaded sleeve is screwed. The tube connection device of the invention is characterized by the ring is fixed to the rear surface of the flared end before the tube connection is made and the ring maintains its fixation along the connection is made.

Face-sealed fittings are described for joining flanged tubes. These fittings utilize unique designs for pairing rings, nipples, and nuts to provide several advantages over prior art designs. Face-sealed fittings provided herein are symmetrical and genderless, and are field attachable/removable over previously welded glands. Moreover, they are torque free and have footprints comparable or smaller than legacy assemblies.

An adapter for connecting a cold-spray nozzle to a cold-spray machine includes a receiver having a first end and a second end and defining an internal space for receiving the cold-spray nozzle; an end cap engageable with the first end of the receiver for securing the cold-spray nozzle in the receiver and having an opening aligned with an outlet of the cold-spray nozzle; and a threaded connection at the second end of the receiver, the threaded connection being configured for connection to the cold-spray machine.

A diesel exhaust fluid transfer circuit providing a fluid transfer connector for securely connecting a port fitting of a diesel exhaust fluid device to a diesel exhaust fluid hose. The fluid transfer connector comprises an attachment nut attachable to a port fitting of the diesel exhaust fluid device. The fluid transfer connector further comprises a hose adapter including a fluid conduit and an annular wiper seal coaxially aligned with the fluid conduit. With the attachment nut attached to the port fitting, the fluid conduit is slidable over the port fitting and connectable to the attachment nut, and the annular wiper seal wipes any residue on the port fitting as the fluid conduit is slid over the port fitting.

A valve coupling for joining pipe elements includes a valve housing surrounded by coupling segments. Projections extend from the segments and engage channels in the valve housing. Engagement between the projections and the channels guides the segments as they are drawn together to engage the pipe elements and secures the valve housing between the segments.