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The installation of pipes with a socket connection is a very simple operation, which consists in connecting the smooth end of one pipe to the socket end of another pipe or fitting (Fig. 1). The elements of the system are equipped with a double-lobe O-ring, which is equipped with a retaining ring - this guarantees the reliability and tightness of the connection. In doing so, the following recommendations should be observed:
1. It is recommended to cut pipes with a fine-toothed saw or a pipe cutter at a right angle (Fig. 2). Cutting fittings is prohibited (fig. 3).
2. After cutting, the pipe end is chamfered at an angle of 15° - for this, a special chamfering tool should be used (Fig. 4). It is also possible to use a velvet file (Fig. 5). The chamfer surface must be smooth to avoid damage to the O-ring during installation of the pipeline.
3. Make sure that the inner surface of the socket, seal and smooth part of the inserted pipe is clean.
4. Apply silicone grease or soapy water to the edge of the pipe. Do not use mineral oils and greases.
5. The pipe is inserted into the socket until it stops, after which it is pulled back 1 cm - this is necessary to create a gap to compensate for the temperature elongation of the pipe (Fig. 7, 8).
6. It should be remembered that the insufficient depth of the pipe insertion into the socket can cause a leak in the connection or misalignment; inserting the pipe all the way into the socket prevents the thermal expansion of the pipeline system.
1. The risers are mounted from the bottom up, while the sockets of the pipes and fittings on the vertical and horizontal sections of the pipeline should be directed towards the flow of the waste liquid.
2. Horizontal pipelines are laid with a design slope. It is impossible to allow deviations of sewer risers from the vertical axis by more than 2 mm per 1 m of pipes.
3. For the installation of sewer pipelines, it is possible to use movable fixtures that allow the movement of pipes in the axial direction, as well as fixed fixtures that do not allow such movements.
4. Fixed fastenings must not be installed directly on the sockets!
5. The distance between fixed fasteners for horizontal and vertical sections of pipeline with DN50 and DN110 should not exceed 1.6 m (for DN50) and 2 m (for DN110).
6. The distance between the movable fasteners should not exceed 10D for horizontal pipelines, and 20D for vertical pipelines.
7. Between fixed fasteners there can be no more than two joints used as compensators.
8. The pipeline can be laid in a concrete screed without additional insulation, with protection of the junction with corrugated cardboard or thick paper.