A tubing splicing device for repairing tubing includes a pair of housings. Each housing comprises a barrel, which is open-ended. A pipe, which is externally threaded, is positioned in and rotationally coupled to the barrel. The pipe is configured to be threadedly inserted into a respective segment of a tubular substrate so that the tubular substrate is drawn into a first end of the housing to sealably couple the pipe to the tubular substrate. A first coupler is coupled to a second end of one of the housings. A second coupler is coupled to a second end of other of the housings. The second coupler, being complementary to the first coupler, is positioned to couple to the first coupler to couple the one of the housings to the other of the housings. Concurrently, the pipes are sealably coupled to sealably couple two segments of the tubular substrate.

A clamping nut (100) for a hose connector (200) includes a first angular surface (302) and a second angular surface (304) defined on an inner surface (122) of a nut body (110) towards the first end (112) and the second end (114) of the nut body (110). The first angular surface (302) and the second angular surface (304) are provided at a first angle (α) and a second angle (β) with a central axis (A-A′) of the nut body (110). A contact section (306) is defined on the inner surface (122) of the nut body (110) between the first angular surface (302) and the second angular surface (304). The contact section (306) is adapted to contact a hose (120) when the clamping nut (100) is threadedly coupled to the hose connector (200). Further, inner diameter (d) of the inner surface (122) of the clamping nut (100) across the contact section (306) is substantially identical to an outer diameter (D) of the hose (120), and the first angle (α) has a value in a range of about 90 to 120 degrees.

A gardening fluid connection device contains a body including multiple retainers, a resilient element, and a fitting sleeve including multiple spaced engagement teeth. The resilient element abuts against the body and the fitting sleeve. The body includes a stop rib, and the multiple spaced engagement teeth are pushed by the resilient element to abut against the stop rib. The body includes at least one retaining element, each retaining element is located on a first side of each spaced engagement tooth, and a width of each spaced engagement tooth is equal to a rotation distance of the fitting sleeve, hence the fitting sleeve is rotated reciprocatingly to open or close of the gardening fluid coupling device by using the stop rib, each retaining element, each spaced engagement tooth and the resilient element, and each retaining element is stopped when moving to a second side of each spaced engagement tooth.

A fitting for use with metal, corrugated tubing having peaks and valleys includes a nut configured to receive the tubing; a sealing member for placement in a valley of the tubing, the sealing member including a sealing surface; an adaptor configured to engage the nut, the adaptor including an adaptor sealing surface; and an anti-tamper sleeve configured to encompass the nut and adaptor; wherein upon assembly, the tubing is compressed between the adaptor sealing surface and the sealing surface.

A connector for a flexible non-metallic conduit is provided. The connector may include a gland nut for receiving the conduit, and a gland ring within the gland nut. The gland ring may be sized to extend around the conduit. The connector may further include a body threadably secured to the gland nut, and a ferrule disposed within the body, wherein the ferrule includes a first keying feature coupled to a second keying feature of the body to cause rotation therebetween, and wherein the ferrule is inserted partially into the conduit. In some embodiments, the gland nut is not directly physically coupled to the conduit, so the gland nut may slide over the conduit towards/away from the body. In some embodiments, during assembly, the body and the gland nut may be rotated together to cause external threading of the ferrule to engage an inner wall of the conduit.

A hose connector has: a head portion, at least one connecting bolt, and a tightening ring. The head portion has a flow channel with at least two open ends, and at least one of the open ends is provided with a threaded portion. The connecting bolt has an inner threaded section engaging the threaded portion of the open end of the head portion, an opening of the connecting bolt has a stopping portion. The tightening ring has a groove configured to accept the stopping portion, a clasping end is formed adjacent to an outer edge of the groove and engaging an outer wall of the stopping portion, a convex ring is formed at another end of the tightening ring and pushing against the stopping portion.

Coaxial fluid elements that utilize fluid pressure to aid in creating a sealed conveyance of two separate pressurized fluid streams. A coaxial fluid fitting provides a fluid-pressure assisted seal on a coaxial fluid transmission element. Coaxial fluid transmission elements allow two separate fluid flows within the same transmission element: one fluid flow through an interior core region, and a second fluid flow through an exterior annulus region. The fluid flows are separated by an internal wall, fully contained by an external wall, with structural members connecting the two walls. The fluid-pressure assisted coaxial fluid fitting accepts a coaxial fluid transmission element, providing seals between the two fluid flows as well as to the surrounding environment. The interior seal is fortified by situating a higher pressure fluid in the exterior annulus region, providing an inward sealing force without the use of a mechanical sealing aid. This enables transmission systems of pressurized fluids that are smaller in size and contain fewer points of failure, compared to standard systems with single fluid stream transmission elements and fluid transmission systems containing other multi-lumen transmission elements.

The invention discloses a kind of composite hose, comprising composite hose body composed of outer hose body, middle hose body and inner hose body.

The composite hose body is provided with hose connection clamp and plastic claw fastener on both end caps, advantageous for use convenience, good airtightness, no breakage of hose body when bending and extension of service life of hose body.

A method includes providing, around an end section of the pressure sheath, of a crimping ring that is intended to be introduced into the pressure sheath; placing, around the end section and the crimping ring, of an end vault of the end piece, the end vault having an engagement surface for engaging with the crimping ring capable of pushing the crimping ring radially into the pressure sheath; relatively moving of the crimping ring in relation to the engagement surface in order to crimp the crimping ring in the pressure sheath. The method includes, prior to the relative movement, a heating of the end section of the pressure sheath, capable of reducing the Young's modulus of the polymer material of the end section of the pressure sheath and of maintaining a reduced Young's modulus during the relative movement step.

A pipe joint connecting a first pipe having conductivity and being grounded and a second pipe including a corrugated metallic pipe member and a conductive layer having lower electric resistance than metal forming the pipe member and covering the pipe member, the pipe joint including a connection part that has conductivity and is connected to the first pipe, a housing part that has conductivity, is engaged with the connection part, and houses the second pipe inside the housing part by insertion of the second pipe along an axis direction of the second pipe, and a conductive member that includes a first part in contact at least partially with the housing part and a second part exposed to an outside of the housing part to be in contact with the conductive layer.