A system coupled to a pipeline includes a first portion and a second portion coupled to the first portion by an over-center latch and a secondary adjustment mechanism such that a diameter of the system can be adjusted independently by either the over-center latch or the secondary adjustment mechanism. The first portion may be coupled to the second portion by a ratchet mechanism. The system may include a service saddle or a tapping sleeve. The system may be coupled to a water main.

A clamp for repair of a pipe coupling, includes a clamp unit including a side wall with an inner surface, the inner surface having a curvature dimensioned to match an outer curvature of a pipe coupling to be repaired. A coupling on the clamp unit is constructed and arranged to couple a first portion of the clamp unit with a second portion of the clamp unit. The coupling, when secured, operates to induce a radially inward force on the inner surface of the clamp unit. A window is formed as an opening in the side wall of the clamp unit. The window is dimensioned to expose a flange of a pipe coupling to be repaired.

A clamp for repair of a pipe coupling, includes a clamp unit including a side wall with an inner surface, the inner surface having a curvature dimensioned to match an outer curvature of a pipe coupling to be repaired. A coupling on the clamp unit is constructed and arranged to couple a first portion of the clamp unit with a second portion of the clamp unit. The coupling, when secured, operates to induce a radially inward force on the inner surface of the clamp unit. A window is formed as an opening in the side wall of the clamp unit. The window is dimensioned to expose a flange of a pipe coupling to be repaired.

A pipe coupler for coupling pipes of different kinds with a one or more crown partially flexible heads, integrated into the ends of the pipe coupler for accommodating grip rings and seals for coupling pipes of different kinds. The crown heads have planes at different levels that form grooves for accommodating the seals, and a backward trimmed cone-shape inner surface plane and flat plane for locking the grip rings inside corresponding recesses in the crown head. The external surface of the grip rings is also cone-shaped that corresponds the shape of the inner surface of the crown head and in friction contact with this inner surface. The grip ring blocks the seal from slipping out, and has sets of teeth for engaging with and locking to a pipe inside the coupler. Clamp bands wrap around the external surface of the crown heads that yield against it, thereby tightening the grip of the teeth in the pipe as internal pressure increases inside the pipe and causes the grip ring to axially travel towards the proximal end of the crown head. All parts of the coupler are made of synthetic materials and thereby avoid corrosive processes.

An insulated exhaust gas conduit system includes a first exhaust gas conduit, a second exhaust gas conduit, a first insulation sleeve, and a second insulation sleeve. The first exhaust gas conduit has a first exhaust gas conduit end portion. The second exhaust gas conduit has a second exhaust gas conduit end portion that is configured to engage with the first exhaust gas conduit end portion. The first insulation sleeve comprising includes a first insulation sleeve and a first insulation sleeve heat shield. The first insulation sleeve insulation layer is disposed around the first exhaust gas conduit. The first insulation sleeve heat shield is disposed around the first insulation sleeve insulation layer. The first insulation sleeve extends beyond the first exhaust gas conduit end portion. The second insulation sleeve includes a second insulation sleeve insulation layer and a second insulation sleeve heat shield.

A corrugated band clamp is configured to effectively secure a sleeve around a pipe. The corrugated band clamp comprises an elongate member having a first lateral side and an opposing second lateral side. Typically, at least a portion of the length of the elongate member comprises a corrugated portion and at least a portion of the length of the elongate member comprises a non-corrugated portion. The corrugated portion of the elongate member enables the corrugated band clamp to effectively secure sleeves on pipes with non-parallel surfaces. In addition, applications of the corrugated band clamp system, methods of manufacture and methods of use are provided.

A pre-assembled pipe coupling includes a gasket, a housing surrounding the gasket, and a fastener. The housing has three segments sequentially coupled to each other to define an insertion boundary. A bridge segment has a first mount extending lateral from the wall and having a plurality of first lateral walls defining a first aperture and a second mount having a plurality of second lateral walls defining a second aperture. A first clamp segment has a first hook disposed in the first aperture. A second clamp segment has a second hook disposed in the second aperture. The fastener is disposed through the first fastener aperture and the second fastener aperture. The fastener has an adjusted length at which the first clamp segment grips the gasket, and the second clamp segment grips the gasket to locate the first sealing lip and the second sealing lip within the insertion boundary.

A coupler for connecting a first fluid conveying member and a second fluid conveying member includes a first coupler half, a second coupler half, and a conductive gasket. In embodiments, at least one of the first coupler half and the second coupler half include an annular groove configured to receive at least a portion of the conductive gasket; the conductive gasket comprises non-metallic material, the first coupler half and the second coupler half are configured to connect and circumferentially surround portions of said first and second fluid conveying members, and the conductive gasket provides a portion of a conductivity path from a first end of the coupler to a second end of the coupler, and may be part of a conductivity path from a first fluid conveying member to a second fluid conveying member. Embodiments of a non-metallic conductive gasket and methods of making a coupler assembly are also disclosed.

A coupler for connecting a first fluid conveying member and a second fluid conveying member includes a first coupler half, a second coupler half, and a conductive gasket. In embodiments, at least one of the first coupler half and the second coupler half include an annular groove configured to receive at least a portion of the conductive gasket; the conductive gasket comprises non-metallic material, the first coupler half and the second coupler half are configured to connect and circumferentially surround portions of said first and second fluid conveying members, and the conductive gasket provides a portion of a conductivity path from a first end of the coupler to a second end of the coupler, and may be part of a conductivity path from a first fluid conveying member to a second fluid conveying member. Embodiments of a non-metallic conductive gasket and methods of making a coupler assembly are also disclosed.

A clamping device including a collar which has a belt able to be clamped by the reduction of its diameter and a seal disposed inside the belt by being retained axially relative to the collar. The seal is formed in a strip which is wound on itself and whose ends are configured to cooperate together via a sealing arrangement. The seal undergoes a stress towards the inner surface of the belt and is configured to be elastically deformed against the stress to allow the insertion of an annular object between the seal and the belt.