A seal assembly is configured for use at PVCO pipe junctions. The seal assembly includes a main seal body made of a monolithic resilient material, such as rubber, and a stiffener. The seal has a stiffener pocket sized and configured to accept the stiffener, such that the stiffener can be assembled to the seal body by hand. This assembly can then be installed into the bell end of a first PVCO pipe, and a spigot end of a second PVCO pipe may then be inserted into the bell end and engaged with a main sealing lobe of the seal assembly. The seal assembly is configured to reliably withstand the insertion process, without damage or degradation to the sealing structures. Once installed, the seal assembly provides a robust fluid-tight seal along all potential leak paths between the seal assembly and the first and second pipes.

There is disclosed a side wall seal for piping comprising an annular ring adapted to be attached to a building sidewall, an annular wall extending outwardly from said annular ring and having a seam in said annular wall, a first ear extending outwardly from the annular wall adjacent a first side of the seam and a second ear extending outwardly from the annular wall adjacent a second side of the seam, and a closure mechanism for closing the seam around said piping. A wedge member may be used with the side wall seal to angle the piping downward.

There is disclosed a side wall seal for piping comprising an annular ring adapted to be attached to a building sidewall, an annular wall extending outwardly from said annular ring and having a seam in said annular wall, a first ear extending outwardly from the annular wall adjacent a first side of the seam and a second ear extending outwardly from the annular wall adjacent a second side of the seam, and a closure mechanism for closing the seam around said piping. A wedge member may be used with the side wall seal to angle the piping downward.

A sealing arrangement includes: a first pipe and a second pipe, which are arranged substantially adjacent to each other in a flow direction and together form a line, the first pipe having a first end and the second pipe has a second end, the first end enclosing the second end at a radial spacing; and a sealing sleeve comprising a sealing material, the sealing sleeve being sealingly arranged under radial elastic preloading in a gap formed by the spacing and sealingly contacting an inner circumference of the first pipe and an outer circumference of the second pipe.

A method for manufacturing a resin pipe joint with a joint body includes the following steps. Preparing a mold and a supply device configured to supply molten resin. The mold includes a first mold for an outer shape of the joint body and a second mold for an inner shape of the joint body. Combining the second mold with the first mold to form a cavity, into which the molten resin is injectable, inside the mold. Supplying the molten resin to the cavity in the mold. Solidifying the molten resin in the cavity after stop of the supply of the molten resin from the supply device. The second mold has a gap that connects the cavity to a discharge space outside the cavity and allows gas to flow.

A method for manufacturing a resin pipe joint with a joint body includes the following steps. Preparing a mold and a supply device configured to supply molten resin. The mold includes a first mold for an outer shape of the joint body and a second mold for an inner shape of the joint body. Combining the second mold with the first mold to form a cavity, into which the molten resin is injectable, inside the mold. Supplying the molten resin to the cavity in the mold. Solidifying the molten resin in the cavity after stop of the supply of the molten resin from the supply device. The second mold has a gap that connects the cavity to a discharge space outside the cavity and allows gas to flow.

A polymer pipe has a length between a first end and a second end. The length and the first end have a first diameter and the second end is a belled end having a second diameter larger than the first diameter. An insert device is received within the second end and has an annular body and a spline groove formed in the annular body and facing radially inward. The insert device is pre-installed in the belled end during the belling process.

A polymer pipe has a length between a first end and a second end. The length and the first end have a first diameter and the second end is a belled end having a second diameter larger than the first diameter. An insert device is received or pre-installed within the second end and has an annular body with a seal part coupled to the annular body and a spline groove formed in the annular body and facing radially inward. Another polymer pipe is inserted in the belled end to form a pipe joint assembly and has a mating spline groove on the outer surface. The spline groove and mating spline groove axially align and receive a spline therein to axially interlock the two polymer pipes to form a pipe joint assembly.

A seal assembly is configured for use at PVCO pipe junctions. The seal assembly includes a main seal body made of a monolithic resilient material, such as rubber, and a stiffener. The seal has a stiffener pocket sized and configured to accept the stiffener, such that the stiffener can be assembled to the seal body by hand. This assembly can then be installed into the bell end of a first PVCO pipe, and a spigot end of a second PVCO pipe may then be inserted into the bell end and engaged with a main sealing lobe of the seal assembly. The seal assembly is configured to reliably withstand the insertion process, without damage or degradation to the sealing structures. Once installed, the seal assembly provides a robust fluid-tight seal along all potential leak paths between the seal assembly and the first and second pipes.

The invention relates to a pipe, in particular a plastic pipe for wastewater lines, which has at least one socket end which is provided with an annular bead (4) and a socket neck (3) and forms a first pipe (1) into the socket end of which the spigot end of a second pipe or shaped part (13) can be plugged and removed again therefrom, and in which an elastic annular seal (6) is inserted into the annular bead (4). According to the invention, the socket neck (3) of the pipe is provided with a screw thread (9) onto which there can be screwed a screw ring (8) which comprises an inner ring part (10) and an outer ring part (11) between which an annular gap is formed, and the ring parts (10, 11) are connected by means of a ring base (12) facing away from the annular bead (4), wherein, upon screwing the screw ring (8) onto the screw thread (9), the front edge (14) of the inner ring part (10) compresses the annular seal (6) inserted into the annular bead (4) and arrests the spigot end of the second pipe or shaped part (13) in the first pipe (1).