A mechanical joint restraint can include a one-piece, elastic gasket defining an inner surface and an outer surface, the inner surface defining a bore, the bore defining an axis therethrough, the gasket defining a first gasket end and a second gasket end, the gasket including: a main body positioned between the first gasket end and the second gasket end; a first stop lip extending radially inward from the main body with respect to the axis of the gasket, the first stop lip defining a first lip height; a gland positioned axially outward from the main body of the gasket with respect to the first gasket end with the mechanical joint restraint in an assembled condition; and a gripping ring positioned adjacent to at least one of the gasket and the gland.

A seal assembly for an HVAC system includes a first block having a first aperture and a first sealing surface, a second block having a second aperture and a second sealing, and a conduit having a tube portion with an axially extending aperture and a flange extending radially outwardly from an end of the tube portion. The tube portion is disposed within the first aperture of the first block and the flange is disposed between the first sealing surface of the first block and the second sealing surface of the second block and is configured to deform when compressed therebetween. The seal assembly further includes an insert providing fluid communication between the aperture of the tube portion and the second aperture of the second block. A first end of the insert is received in the aperture of the tube portion of the conduit.

This invention relates to an improved component (10) for replacing pipes, in particular underground pipes. The invention also relates to a trenchless method of removing pipes using the improved component, and a kit of parts for use in removing pipes. The improved component (10) is securable to a cable (14) and has a body (30) with a recess (26) to accommodate the end (18) of the pipe (12) in use, the recess being surrounded by a collar (24). The improved component is a two-part component, the first part (20) being securable to the cable (14) and the second part (22) including the body, the two parts being made of different materials. There is also provided a kit of parts including cooperating alignment elements of standard dimensions, and a method of removing an underground pipe.

A seal, in particular for a fluid line connector, includes: a tubular body with an inner surface, an outer surface, a first axial end, and a second axial end; a first elastomeric layer arranged on the inner surface; and a second elastomeric layer arranged on the outer surface. In an embodiment, the first elastomeric layer extends over the first axial end of the tubular body and merges into the second elastomeric layer.

A pipe connection fitting includes a gasket holder ring, a flap ring and a grip ring operably coupled together. A terminal housing is configured to engage with the gasket holder, flap ring and grip ring to form the pipe connection fitting adjacent an end of a pipe. The flap ring includes a plurality of tabs extending therefrom to provide an abutment for controlling a relative position of the grip ring.

An exhaust system having a pipe for conveying exhaust from an engine, the end of which has an outwardly-protruding lip; a first pipe flange having a hole large enough to allow the lipped end of the pipe to pass through it, and a recessed shoulder adjacent the hole; a collar, configured to releasably encircle said first pipe, to abut with the recessed shoulder at its outer periphery, and the lipped end of the pipe at its inner periphery, thereby preventing the collar and lipped pipe assembly from passing through said hole; and a second pipe flange configured to attach to said first pipe flange to connect a tail pipe to the first pipe, and to hold the pipe, flange and collar assembly together. The invention also provides counterweights for counterweighted lift trucks adapted to secure such exhaust systems, and methods of fitting such exhaust systems.

An exhaust system having a pipe for conveying exhaust from an engine, the end of which has an outwardly-protruding lip; a first pipe flange having a hole large enough to allow the lipped end of the pipe to pass through it, and a recessed shoulder adjacent the hole; a collar, configured to releasably encircle said first pipe, to abut with the recessed shoulder at its outer periphery, and the lipped end of the pipe at its inner periphery, thereby preventing the collar and lipped pipe assembly from passing through said hole; and a second pipe flange configured to attach to said first pipe flange to connect a tail pipe to the first pipe, and to hold the pipe, flange and collar assembly together. The invention also provides counterweights for counterweighted lift trucks adapted to secure such exhaust systems, and methods of fitting such exhaust systems.

Provided is a pressure pipe connection structure that reduces man-hours for machining one or more pressure pipes and does not require high machining precision. Multiple arc members form a ring shape that makes a circle by matching the end faces thereof to each other. Non-penetrating holes may be provided on the outer circumference of the arc members. The ring formed by the multiple arc members has an inner diameter that is smaller than the outer diameter and larger than the inner diameter of a pressure pipe. A cylindrical sleeve has an inner cylindrical surface inside which the entire outer circumferences of arc members are fitted into a hollow internal space, into which respective one or more pressure pipes are inserted from one or more opposing entrances; and multiple through holes, which penetrate from the outside and are provided with female thread ridges. The one or more pressure pipes are cut to a certain length that is suited to the placement site and a groove is grooves cut in the corresponding pressure pipe. The arc members are fitted into the groove, and the arc members are positioned on an inner cylindrical surface by inserting the one or more pressure pipes into a sleeve, the respective through holes and non-penetrating holes are made to communicate with each other, and the one or more pressure pipes are fixed using bolts.

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.

Pipe joint, which is formed from the end portions of pipe sections to be joined together with the portions including a collar, and from flange parts which, as seen from the junction, are placed on different sides of the collars and tightened with applicable fixing members, such as with screws and nuts. The collar of the pipe section is formed from the wall of the end of the pipe section by shaping with a shaping member. The joint surface of the collar of at least one of the pipe sections to be joined is arranged to be divergent by the amount of an angle ?, ? from the plane perpendicular to the longitudinal axis of the pipe section. A method and to a flange part arrangement are disclosed.