A pressure-energized bidirectional seal having a main body having a first end and a second end and a pair of legs extending from the second end of the main body, the pair of legs having an inner surface and an outer surface, the inner surface forming a hollow interior opening in a first direction. The bidirectional seal includes at least one rib extending from the outer surfaces and configured to sealingly engage a mating surface of a mating body the at least one rib forming a sealing zone opening in a second direction opposite of the first direction.

A permanently lubricated film gasket for providing a fluid-tight seal between a corrugated pipe and a smooth annular section of an outer pipe or section when the corrugated pipe and the outer pipe or section are in a relative surrounded and surrounding relationship. A first portion of the gasket is shaped to fit within a groove or recess of the corrugated pipe. A second portion of the gasket extends from the first portion. The second portion is at least partially comprised of permanently lubricated film for facilitating in the connection of the pipes along a single direction.

A permanently lubricated film gasket for providing a fluid-tight seal between a corrugated pipe and a smooth annular section of an outer pipe or section when the corrugated pipe and the outer pipe or section are in a relative surrounded and surrounding relationship. A first portion of the gasket is shaped to fit within a groove or recess of the corrugated pipe. A second portion of the gasket extends from the first portion. The second portion is at least partially comprised of permanently lubricated film for facilitating in the connection of the pipes along a single direction.

The invention relates to a seal ring having a central axis and comprising an elastic ring member made of elastic material and comprising an annular body portion and a flange surrounding the annular body portion, wherein the thickness of the flange is smaller than the thickness of the annular body portion as measured in axial direction of the seal ring. The invention also relates to a hose connector assembly implementing the aforementioned seal ring.

A coupled pipe joint assembly includes a first pipe element defining a first end; a second pipe element defining a second end, the first end and the second end positioned together in an end-to-end facing relationship; and a coupling, the coupling including at least one segment, each segment defining a first end and a second end, the first end disposed opposite from the second end, each first end and each second end defining a fastener hole; at least one fastener, each fastener extending through at least a one of the fastener holes; and a gasket, each segment positioned annular to the gasket, the gasket including an annular body; a pair of sealing ribs each extending substantially radially inwardly from the annular body, and at least one center rib extending substantially radially inwardly from the annular body.

A coupled pipe joint assembly includes a first pipe element defining a first end; a second pipe element defining a second end, the first end and the second end positioned together in an end-to-end facing relationship; and a coupling, the coupling including at least one segment, each segment defining a first end and a second end, the first end disposed opposite from the second end, each first end and each second end defining a fastener hole; at least one fastener, each fastener extending through at least a one of the fastener holes; and a gasket, each segment positioned annular to the gasket, the gasket including an annular body; a pair of sealing ribs each extending substantially radially inwardly from the annular body, and at least one center rib extending substantially radially inwardly from the annular body.

A polymer pipe includes a length between a first end and a second end, the length and the first end having a first diameter. The second end is a belled or female end having a second diameter larger than the first diameter. An insert device is received within the second end and has an annular body formed of a body material and has a spline portion formed as a part of the insert device. The spline portion includes a spline carried by the insert device and resiliently movable in a radial direction relative to an axis of the annular body.

A coupling sized for use with a pipe having a pipe outer diameter, the coupling including a pair of segments; and a gasket positioned between the pair of segments, the gasket including an annular body; and a pair of sealing ribs each extending substantially radially inwardly from the annular body, each sealing rib of the pair of sealing ribs defining a cylindrical sealing surface at an innermost radial extent in an uncompressed state, the cylindrical sealing surfaces each defining an inner gasket diameter that is larger than the pipe outer diameter when the gasket is in the uncompressed state.

A coupling sized for use with a pipe having a pipe outer diameter, the coupling including a pair of segments; and a gasket positioned between the pair of segments, the gasket including an annular body; and a pair of sealing ribs each extending substantially radially inwardly from the annular body, each sealing rib of the pair of sealing ribs defining a cylindrical sealing surface at an innermost radial extent in an uncompressed state, the cylindrical sealing surfaces each defining an inner gasket diameter that is larger than the pipe outer diameter when the gasket is in the uncompressed state.

Pipe sections are often connected together with a spigot end received within a bell end and a gasket provided there between. An assist may be helpful to apply at least a tension if not move the gasket towards a gap between the bell end and an exterior surface of the spigot end of the two pipe portions, and/or against the exterior surface of the spigot end so as to improve the likelihood of an adequate seal.