A watertight flange for jointing and repairing pipes is provided that includes a ring-shaped sealing gasket (2) and a metal body (3) that is perimetrically coupled on the circular surface of the ring-shaped gasket (2). The sealing gasket (2) and the metal body (3) are pressed by closing and clamping elements externally incorporated determined by bolts (4) transversally inserted in respective pairs of parallel through-axles (5) and joined integral with the metal body (3). The metal body (3) has approximately the same length as the ring-shaped gasket (2), with respective lateral ends perpendicularly folded inward and having radial cuts (31) that define related rims (32) that determine retaining means of the said ring-shaped gasket (2) in the metal body (3) and, eventually, means interlocking the watertight flange (1) itself on the surface of the pipes to be jointed.

A watertight flange for jointing and repairing pipes is provided that includes a ring-shaped sealing gasket (2) and a metal body (3) that is perimetrically coupled on the circular surface of the ring-shaped gasket (2). The sealing gasket (2) and the metal body (3) are pressed by closing and clamping elements externally incorporated determined by bolts (4) transversally inserted in respective pairs of parallel through-axles (5) and joined integral with the metal body (3). The metal body (3) has approximately the same length as the ring-shaped gasket (2), with respective lateral ends perpendicularly folded inward and having radial cuts (31) that define related rims (32) that determine retaining means of the said ring-shaped gasket (2) in the metal body (3) and, eventually, means interlocking the watertight flange (1) itself on the surface of the pipes to be jointed.

A seal clamp, such as for gas lines, includes a handle assembly having a handle, a transfer or drive assembly cooperable with the handle, and a clamping assembly including first and second claws or clamps and a seal member. The first and second claws or clamps are cooperable with the transfer assembly. The seal member is structured to seal a puncture in a gas line. Responsive to movement of the handle, the first and second claws or clamps move from an OPEN position to a CLOSED position, such as to engage a pipe and create a clamping force which forces the seal member into engagement with the pipe, such as a puncture, to seal the pipe.

A seal clamp, such as for gas lines, includes a handle assembly having a handle, a transfer or drive assembly cooperable with the handle, and a clamping assembly including first and second claws or clamps and a seal member. The first and second claws or clamps are cooperable with the transfer assembly. The seal member is structured to seal a puncture in a gas line. Responsive to movement of the handle, the first and second claws or clamps move from an OPEN position to a CLOSED position, such as to engage a pipe and create a clamping force which forces the seal member into engagement with the pipe, such as a puncture, to seal the pipe.

A system for detecting leaks comprises at least one pipeline element, a leak detection device, and a pre-formed, heat-shrinkable sleeve comprising at least one inlet aperture. A method of manufacturing the sleeve comprises the steps of applying a cross-linkable material around a standard-sized sleeve mold, cross-linking the material, removing the cross-linked material from the mold, heating and stretching the cross-linked material around a stretching sleeve mold, allowing the material to cool, and removing the cooled sleeve from the mold. A method of monitoring a leak comprises the steps of receiving the pipeline element in the sleeve and applying heat to the sleeve, whereby the sleeve shrinks and conforms substantially around the profile of the pipeline element and at least a portion of the leak detection device.

A method and sealing gasket are shown for providing a sealing joint between a spigot section and a socket section of low pressure plastic pipe, such as drain waste vent pipe that require a minimum of tools and operational steps to complete. The sealing gasket is installed in one of the sections to be joined and the spigot section is inserted within a mouth opening of the socket section with the sections being pressed together in a single operation, thereby forming both the joint and the seal. The sealing gasket is a composite gasket made with one section of a hard plastic material and one section of a thermoplastic elastomer material. No glue or adhesive is required.

A method and sealing gasket are shown for providing a sealing joint between a spigot section and a socket section of low pressure plastic pipe, such as drain waste vent pipe that require a minimum of tools and operational steps to complete. The sealing gasket is installed in one of the sections to be joined and the spigot section is inserted within a mouth opening of the socket section with the sections being pressed together in a single operation, thereby forming both the joint and the seal. The sealing gasket is a composite gasket made with one section of a hard plastic material and one section of a thermoplastic elastomer material. No glue or adhesive is required.

A clamp sealing apparatus configured for preventing leakage from a defective region of a tube is provided. The clamp sealing apparatus includes a first clamping section and second clamping section tangentially connected to each other; and a seal held by the first and second clamping sections. Each of the first and second clamping sections includes a segment of a clamp body and a segment of a compression section. The clamp body and the compression section is configured for axially compressing the seal between the clamp body and the compression section such that the seal is pressed radially against an outer diameter surface of the tube onto the defective region by the axial compression to seal the defective region. A method of sealing a defective region of a tube to prevent fluid leakage through the defective region is also provided.

A clamp sealing apparatus configured for preventing leakage from a defective region of a tube is provided. The clamp sealing apparatus includes a first clamping section and second clamping section tangentially connected to each other; and a seal held by the first and second clamping sections. Each of the first and second clamping sections includes a segment of a clamp body and a segment of a compression section. The clamp body and the compression section is configured for axially compressing the seal between the clamp body and the compression section such that the seal is pressed radially against an outer diameter surface of the tube onto the defective region by the axial compression to seal the defective region. A method of sealing a defective region of a tube to prevent fluid leakage through the defective region is also provided.

A clamp comprising a band, the band comprising first and second edges, first and second lug elements connected proximate to the first and second band edges, multiple bolts extending transversely between the first and second lug elements, the first lug element comprising a transversely extending lug finger having a finger bearing surface, the second lug element comprising a lug finger land having a bearing surface, the lug finger extending transversely between the first and second lug elements, the finger bearing surfaces of the lug finger and the lug finger land contoured relative to each other such that tightening the band to reduce a gap between the edges of the band in a first range causes the first lug element to rotate in a first direction of rotation and in a second range causes the first lug element to rotate in a second direction opposite to the first direction of rotation.