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.

A valve or a valve coupling has a closing member rotatably mounted within the bore of a housing. The valve closing member is mounted on tapered shafts. The shafts may be stepwise tapered, or a portion of the shafts may be tapered. The ends of the shafts having the larger diameters engage lugs on the valve closing member and the ends having the smaller diameters extend from the housing.

A combination valve and coupling has a retainer in the form of a ring which engages a seal. The seal engages the valve closing member and is captured within a pocket in the valve housing by the ring. The ring has tabs in spaced relation about its outer perimeter which engage dogs on the valve housing to retain the ring in contact with the seal. The stiffness of the tabs may be tuned to provide flexibility to the ring and permit the seal to deform when the valve is opened and closed. The tabs have angularly oriented surfaces which engage the dogs and cause axial motion of the ring upon its rotation to adjust the preload between the ring and seal.

A seal for a coupling joining pipe elements has angularly oriented ramp surfaces on an outer surface. The ramp surfaces are arranged in diametrically opposite pairs which are positioned at the three o'clock and nine o'clock positions at the interface between segments forming the coupling. The ramps are expected to mitigate pinching of the seals between the segments as the segments are drawn together, compressing the seals to form a fluid tight pipe joint.

A bi-directional hose break-away assembly includes a first adapter section and a second adapter section that are operatively connected by a hose section. A first valve assembly is disposed within the first adapter section and a second valve assembly is disposed within the second adapter section. The first and second valve assemblies are operatively connected by a stem connector so that the first and second valve assemblies will close in the event a maximum tensile load is exceeded, thereby preventing spillage of liquefied chemicals.

A valve and coupling for joining pipe elements has a valve body captured in a central space defined by a plurality of coupling segments attached to one another end to end. The inner surface of the valve body defines a bore. A liner on the inner surface surrounds the bore and forms a seal with a valve closing member. Circumferentially arranged projections on the segments engage and center the valve body within the central space. The liner has lobes that extend axially in opposite directions. The lobes are compressed between the segments and the pipe elements to form a fluid tight seal when connection members are tightened to draw the segments toward the central space and into engagement with the pipe elements.

An appliance for treatment of items may include: a body defining a chamber to hold the items during treatment; a door to close the chamber during treatment; a base having an opening at an edge of the base, the body being supported on the base; a valve located in the opening; and a clip attached to the base at the opening such that the valve is secured in the opening between the clip and the base.

Provided is a connection assembly for connecting to inner and outer hoses. The connection assembly includes a first connector assembly, a second connector assembly, a first hose connector assembly coupled to the connector assembly and configured to be coupled to the inner and outer hoses, the first hose connector assembly including a first tube connector configured to be coupled to the inner hose and a first collar configured to be coupled to the outer hose, and a second hose connector assembly coupled to the second connector assembly and configured to be coupled to the inner and outer hoses, the second hose connector assembly including a second tube connector configured to be coupled to the inner hose and a second collar configured to be coupled to the outer hose, wherein the second tube connector has a cross-sectional area that is smaller than a cross-sectional area of the first tube connector.

Some fluid couplings, as described in this document, have an actuatable valve. In some examples, the actuatable valves provide an unobstructed flow path when switched to the open position and a closed flow path when switched to the closed position.

Connector for releasably attaching two fluid transfer lines, includes a flow connector with a first and second connector assemblies (3, 6) each having a fluid passage, a valve rotatably seated in the passage for opening or closing off the fluid passage. The flow connector also including a normal connection/disconnection system and an emergency disconnection system both located at the same interface and each one having its own dedicated actuating system characterized in that the flow connector is combined with a structural disconnectable load diverter (11, 4, 59) diverting the loads and moments created by the transfer line (2) away from the valves and the flow connector.