A sealing assembly for flanges is described. The sealing assembly includes a wedge, a first sealing element, a second sealing element, and a fastener. The wedge has a first surface, a second surface, and a third surface. The first surface defines a pressure void with a first flange and a second flange. The first sealing element engages the second surface of the wedge and the first flange. The second sealing element engages the third surface of the wedge and the second flange. The fastener couples the first sealing element, the first flange, the second flange, and the second sealing element together. The wedge slides toward the sealing elements responsive to a pressure increase in the pressure void. The sealing elements force the flanges toward each other responsive to the wedge sliding toward the first sealing element and the second sealing element.

A tubular joint having an outer part formed by a fitting end of a piping element, and defining a first axis, an inner part formed by a spigot end of another piping element, the spigot end received in the fitting end. The fitting end and the spigot end define a fluid internal circulation space. A flange attached on the outer part and axially abutting against a shoulder formed by the inner part. A layer of polymeric material, extending radially between the outer and inner part, having a radially outer and inner surface both surrounding the first axis and bonded respectively to the outer and inner parts. The inner part rotatable with respect to the outer part about the first axis, and the inner part defining a second axis forming a pitch angle with the first axis. The inner part, the outer part, and the flange limit the pitch angle to lower than 5°.

A split retaining ring for a connection assembly adapted for connecting an instrument or other device to a vessel, such as a pressure vessel. The connection assembly includes a base, an instrument or device, and a split retaining ring wherein the split retaining ring includes overlapping end portions. The split retaining ring also includes an annular rib adapted for engaging a ferrule of the instrument or device in order to substantially sealing engage the instrument or device to the base.

A rotational high purity or ultra-high purity gas fitting or process cooling or critical process cooling water fitting comprising an inlet pipe, inlet flange, outlet flange, a compression mechanism (such as a nut and bolt mechanism), a rotational outlet pin comprising an interior flange, a sealing void, a sealing element, and an outlet pipe. The rotational high purity or ultra-high purity gas fitting or process cooling or critical process cooling water fitting provides a fitting wherein at least one end (inlet or outlet) is capable of a full 360 degree rotation clockwise or counterclockwise while maintaining a high purity and ultra-high purity gas seal or a or process cooling or critical process cooling water seal. Functional rotating ability in live and non-live systems (while gas or other medium is flowing).

Dual-walled fluid transportation systems and related methods. The systems comprise a dual-walled fluid conduit, comprising an outer duct comprising a pair of flared end regions and a central region extending therebetween that define an outer duct internal surface surrounding an outer duct internal volume, an inner duct defining a central conduit, extending within the outer duct internal volume, and comprising a pair of flared end regions and a central region extending therebetween that define an inner duct external surface. The inner duct and outer duct define interlocking geometries and are configured to be supported with an inner duct channel completely separating the inner duct external surface from the outer duct internal surface. The methods include additively forming an outer duct wall and additively forming an inner duct wall within an outer duct internal volume of the outer duct wall with an inner duct channel extending therebetween.

There is provided a pipe connection arrangement for a heat exchanger and a method of connecting a pipe to a heat exchanger utilising a pipe connection arrangement. The pipe connection arrangement includes: a metallic block fitting; a flange for coupling to the block fitting; and a seal. The block fitting includes a bore extending therethrough for receiving a pipe for connection to a heat exchanger and the flange includes a bore extending therethrough for receiving the pipe. The block fitting includes a surface that faces the flange when the flange is coupled to the block fitting. The seal is configured for location between and for abutting both the surface of the block fitting and an annular collar of a pipe when it is connected by the pipe connection arrangement. The pipe extends through the bore of the flange and the flange is coupled to the block fitting.

A device for connecting a pump body to a pipe of a hydraulic system, characterized in that it comprises a planar flange having a thread on the inside diameter for its coupling to a tubular intake portion or delivery portion of said pump body, which is threaded complementarily on its outside diameter.

A fluid conduit interlock comprises at least one retention member for engaging a fluid conduit , the or each retention member configured to be movable between a retention position for retaining the fluid conduit and a release position for releasing the fluid conduit, a valve member configured to be movable between a valve open position for opening a hollow bore and a valve closed position for closing the hollow bore, and an interlock mechanism configured to operably link the movement of the or each retention member and the movement of the valve member so that the or each retention member in the release position locks the valve member in the valve closed position and so that the valve member in the valve open position locks the or each retention member in the retention position.

A flange assembly includes a flange for connection to a hose or pipe, the flange defining a contact face for engagement with a contact face of an opposed flange. The flange assembly also includes at least three clamps spaced circumferentially around the contact face. Each clamp includes a clamp body pivotably secured to the flange and a clamp member mounted on the clamp body, which is movable between a first, retracted position and a second, clamping position. A clamp face of the clamp member faces the contact face of the flange. The clamp member is movable relative to the clamp body to adjust the position of the clamp face relative to the contact face of the flange and adjust a clamping force created between the clamp face and the contact face of the flange to retain an opposing flange in face-to-face engagement with the contact face of the flange.

An arrangement for fluid-tight connecting of lines including a first and second connection element. The connection elements are aligned with each other and connected by a fastening mechanism. The arrangement includes an intermediate element between the connection elements and a holding element and a second sealing element. A first sealing element is arranged in the holding element between the sealing surfaces of the connection elements. The holding element has a hollow wall with a first and second edge. The second sealing element is connected to the holding element on the second edge. The intermediate element includes an indentation extending from a first end to a second end formed near the first sealing element. The first end has a conical shape, wherein oppositely arranged side walls of the indentation rest on one another on the outer side of the sealing element.