Protective corrugated pipe pnd - all about the properties of

08-01-2018
Pipes

Often, buyers pay only for one factor of the material they need to buy - its price. But this is fundamentally wrong, because you, at a minimum, should be aware of the environmental safety of the product, its reliability and operational life, in order not to overpay for repairs in the future.

On the other hand, how can an ordinary consumer know about all the characteristics of certain materials used by him for construction and repair purposes? It cannot, and is not obliged, for this there are specialist consultants who are ready to help at any moment and prompt with a choice. But not everyone can be trusted, someone will just want to shove you a second-rate stale goods.

Elastic products are most often sold in coils, it also depends on the pipe diameters used.

Lyrical digression about pipes from HDPE

In this article, we will write as much about corrugated products as possible so that you understand what they are for, where they are used and, as a last resort, could get them yourself.

Protective channels allow you to protect communications from voltage surges when two damaged wires touch

Positive qualities of pipes

The following characteristics of the HDPE corrugated pipe are not any superpowers separately, but it is in the aggregate all the qualities that distinguish this material in the construction market:

  • We point out the low cost of the product, which can not fail to please consumers, whose budget is written in pennies.
  • Another important factor is the use of recycled materials as the main material. This aspect gives rise to two weighty arguments in favor of HDPE pipes:
  • Firstly, it has a positive effect on the environmental ecology, since the products that have already been used are recycled, which have become unclaimed for various reasons.
  • Secondly, the pipes have a long service life, as they are made mainly of low-pressure polyethylene.
  • The increased resistance to various atmospheric and chemical influences allows the use of products for laying external networks underground and above ground.
  • It is worth noting the low degree of thermal conductivity resulting in the absence of condensate.
  • Zero risk of deformation or damage to the corrugated tube if there is a liquid inside it.
  • Small weight and small dimensions of the product, which facilitates the workflow, transportation and storage of materials.

    • Note! These qualities are only present in non-used products. If you decide to save and purchase already used pipes, then no one will guarantee durable and trouble-free operation.

    Corrugated tube classification

    There are several types of pipes that are manufactured according to GOST 18599 - 83, for consumers they are divided into:

    • T - labeling means "heavy" products.
    • C or SL - medium / medium-light tubes.
    In the domestic market there is an analogue of products from PND - metal corrugated channels

    Note! A corrugated pipe made of HDPE can be made and under the order, of course, not all manufacturers are ready to provide this service.

    As for the material from which this type of pipe is made, it is used:

    • Low pressure polyethylene complying with GOST 160339-83.
    • High pressure with GOST 16377-83.

    In finished form, corrugated tubes are sold in coils (diameter up to 90 mm), products of larger diameter are produced by straight elements, the length of which can reach 12 meters.

    The corrugated pipes in the photo are used to provide electricity to industrial facilities located in the distance

    Application area

    The main function of this pipe is a protective one that prevents damage to the cables, therefore it is important to use them for:

    • Devices of all kinds of external networks, for example, for connecting electrical and sewage systems in suburban areas.
    • Connecting utility rooms built after the construction of the main house.
    • Corrugated pipes are also used on the external walls of buildings, for example, if there is no other way to connect a street lamp.
    • Suitable for connecting adjoining lighting fixtures using the underground method.
    • They can be mounted under plasterboard constructions, false walls and raised floors to prevent short circuiting and ignition of heat-insulating materials.
    • For laying industrial networks along highways.
    Due to its elasticity, corrugated hoses are used for portable vacuum cleaners.

    Note! Products of small diameter can be mounted in concrete structures, this will help to avoid damage to the wire when the concrete is displaced.

    Installation recommendations

    The instruction for laying corrugated pipes is simple, it will not cause you any difficulties, you will surely cope with the working process with your own hands. (See also the article Couplings for polyethylene pipes: features.)

    But there are some features that are better known and do not forget:

    The figure shows a universal adapter that allows you to organize network branching
    • Work is best done to minus twenty degrees., materials from the HDPE can withstand temperatures below thirty, but not all the wires in such conditions are elastic.
    • Be careful when laying pipes, if any liquid, oil or other type of contamination gets inside, it may affect the integrity of communications in the future..

    Recommended! To avoid the formation of condensate, stack communications with a slope that will produce the outflow of the condensate formed in special septic tanks.

    • If the corrugated pipes are located at a depth of two to three meters, then concrete reinforcement should be installed for the channel. And it is even better if the PND corrugated double-layer pipe is purchased.
    • As for the joints, it is better to avoid them, acquiring the required footage (this is possible due to the elasticity). If the joints of the corrugated pipes are not avoided, then use special adapters and, if possible, sealants.
    The adapter is made of high quality plastic, which is not subject to environmental influences

    Conclusion

    We tried to give you as much useful information on the above product as possible, provided not only technical data, but also installation features. Now you can independently understand the suitability of the material, use it for its intended purpose and keep the communications safe and sound for many years.

    In the presented video in this article you will find additional information on this topic.

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