Connection of corsis pipes with pipes of other systems and installation of wells. Two-layer corrugated PP pipes and fittings: an overview Transition from corrugated pipes to smooth

KORSIS pipes can be connected to pipes of any other type using specially designed fittings (Fig. 15).

Consider an example of the most common type of connection with PVC/PP pipes (Fig. 16).

To perform the specified type of connection, the following work order is proposed:

  • Inspect and clean the socket of the PVC pipe, the coupling and the free end of the KORSIS pipe.
  • Insert the free end of the KORSIS pipe into the socket of the coupling, having previously treated its inner surface with silicone grease.
  • Lubricate the seal in the flare with grease. Insert the socket end of the coupling into the socket of the PVC pipe.

The preferred way to move between existing system and a new line of KORSIS pipes is the use of manholes.

Rice. 15. Transition of welded KORSIS SN8 to PE 80 SDR 13.6

A manhole is an independent structure that is part of the sewer system. It can be polyethylene or concrete. Polyethylene wells are of two types. The first type consists of a cast base (sweat) and a vertical pipe KORSIS connected to it (well heat). To connect the pipe with such a well, special sealing rubber rings are used to ensure the watertightness of the connection (Fig. 17.19).

The high type is a structure welded from pieces of the KORSIS pipe. It is obvious that such wells can be maximally adapted to the requirements of the customer. The connection of this type of manhole to the pipe is usually made with a coupling (Fig. 18). Connected pipes CORSIS co manhole from concrete is carried out by fixing the pipe in the well with the help of cement mortar. The design feature of KORSMS pipes - a special profile - ensures the reliability and tightness of such a connection (Fig. 20). Attention should be paid to ensure that the heating element in the well has a diameter that is as close as possible to the outer diameter of the pipe. All cracks formed must be filled cement mortar, which must meet the requirements for ensuring the density of the concrete joint. During the installation of the pipe in the concrete or reinforced concrete wall of the well, it is necessary to provide a rigid support for the free end of the pipe by adding soil until the concrete has completely set.

It is not necessary to concrete the KORSIS pipe simultaneously with the arrangement of the walls of a monolithic well, since this can cause the pipe to deform under the weight of uncured concrete.


Fig. 16. Connection of KORSYS pipes (smooth end) with PVC / PP pipes


Rice. 17, PE well complete with standard tray

When installing a socketless section of a KORSIS pipe into a concrete or reinforced concrete well, it must be taken into account that the length of the pipe section located on the outside of the well must be at least half the diameter of the pipe (Fig. 21).

A KORSIS coupling is put on the free end of the pipe prepared in this way, into which the next section of the pipeline is inserted.

The diameter of the pipe inserted into the concrete well should not exceed half the diameter of the well.

Such technical solution has a number of advantages:

  • the ability to use the remaining unmeasured pipe sections on the construction site;
  • the ribbed shape of the outer surface of the KORSIS pipe makes it easier to fix and stabilize the position of the pipe in the concrete wall of the well;
  • this method also makes it possible to compensate for stresses that arise as a result of possible uneven shrinkage of a concrete well and pipeline;
  • quick and easy installation.

Pipe connectionKORSISbutt welding

One of the advantages of the KORSIS system is the ability to connect pipes by butt welding. This possibility is provided by a sufficient pipe wall thickness e^ between the ribs and the width of the profile.

The same welding methods and welding equipment are used as for conventional polyethylene pressure pipes. Welding equipment suppliers, together with the equipment, provide a table of recommended welding parameters - temperature, time and pressure. For butt reconciliation, coarse KORSIS usually take values ​​​​for welding pressure polyethylene pipes with a small wall thickness. Care must be taken to avoid contact between the heater and the corrugation fins.

The standard welding cycle for the KORSIS pipe includes the following sequence of operations with certain time regulations (Table 15)

Internal pressure resistance

Sewer pipes are considered non-pressure, but at the same time, according to)

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