The connection of polyethylene pipes

installation of polyethylene pipes

compound plastic pipes are:

• interposition.They tend to understand the operation and connection occur via flanged connections.Collet connection may be that are made via compression fittings.
• Nerazedinitelnye.They do not understand, and most often they are used at butt welding and coupling.

Operation of heated tool butt welding at

connection processes occur so:

1. End of the components to be installed in the center of a specific machine for welding.All end of the pipe should be wiped off the dirt wipes, followed by a end-devices, mechanical processes occur.
2. Generated chips, should be about 0.5 millimeters, as well as the end face of the mechanism is removed and there is verification work parallel tubes.
3. Then the work is done by heating the end parts.After completing this process, the heating device must be removed from the welding area.
4. All surfaces that have been exposed to weld for some time are closed, and there is increasing pressure to certain results.This seam should stay with a certain pressure for a while, and then is cooled.

To determine the qualitative characteristics of the welding burr is necessary to look at the weld actuators work his altitude characteristics, its width, as well as simply for aesthetic appearance that it has after all works.

Electrofusion connection

These connections are made by means of the clutch, which makes connecting polyethylene pipes with electric heating elements.Pressure should be up to 16 atmospheres.This connection comes out more expensive than the use of butt welding.

most often operated with electric easy, which is used when connecting the straight sections.Just power tees, and all sorts of different saddle diverting structures can be used.These connections are good for assembly work with pipeline systems, which do not have a large diameter.

The coupling is such welding processes:

1. Preparing pipes must, carried out, in advance, to be able to use the same coupling attached on one axis, and the need to wipe a layer of dirt.
2. must be the instrument connection, which supplies an electric current.Because it is heated with electric and the surrounding material is melted.
3. Due to the fact that the polyethylene melts in an electric clutch, the heat transferred to the tube.
4. pressure welding is obtained by expanding the pipe and polyethylene.
5. This tool can be turned off.

If an employee uses good and quality equipment for installation works, then the whole series of welding process takes place in an independent manner.Also, all data on all the works will be included in the plan of the electronic protocol, which is a good proof of the quality of work.

Since the welding of pipelines diameters can be great, you need a special display, which takes place in the following stages:

1. Welding coupling parts takes place gradually from all sides of the pipe connection.
2. first fully welded pipe from one part of electro, with the second part of the next welded pipe.
3. If the electrical coupling has a large diameter, then it must have a separate connector for connection to the machine spirals.

Types interposition connections

most common and is used to connect - a flange.This is done by fitting a flange portion at the connection of polyethylene pipes.Most often, such a connection employs releasable connection, for the design of the pipeline facilities.

The same can be operated compressor fitting connections, which are used for small diameters, no more than 50 millimeters, in those moments when the flange connection or butt welding is not profitable.

used and collet connection, for this kind of need to adhere to the pressure of 25 atmospheres.Hermetic ability of such a connection is achieved with a rubber O-ring, and for resistance to mechanical in bulk via a tube inserted into the special teeth.

variety of connection types

most feature-rich way to connect a polyethylene pipe butt welding via the preheated material.This method gives all possible connections to pipes or parts to each other.All pipelines, the welding process are made to have excellent durability.