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Building Materials

August 12, 2017 18:08

Polyethylene pipes for water supply - select waterways Housing

Pipe polyethylene pipe - a modern view

today construction market offers a large number of various types of pipes, including: polypropylene (PP), polyvinyl chloride (PVC), polyethylene (PE), plastic pipes and cross-linked polyethylene (PEX).Emphasizes builders PEX-pipe, which is resistant to the effects of alkalis and acids, in addition, they do not deteriorate under the influence of cement and plaster.

material of which are made of polyethylene pipes for hot water, can withstand temperatures from -110 to +110 degrees Celsius.This element resistance is due to be used in systems that are exposed to freezing.At the core of the multilayer varieties are two layers of PEX, which separates the small layer of aluminum.They combine the properties of plastic and metal.It is thanks to the aluminum elements are becoming resistant to many environmental factors.

Polyethylene pipes for water supply - the pros and cons

Despite the popularity that won polyethylene pipes for water, their technical characteristics have caused some significant advantages and disadvantages that affect their operation.Among the advantages the following release:

  • corrosion resistance, because the polymers do not enter into electrochemical reactions;
  • plastic is environmentally safe;
  • lifetime five times greater than that of steel analogues, there may be more than 50 years;
  • low weight;
  • low noise from the flow of water;
  • low thermal conductivity;
  • installation simple and not time consuming.

Among the disadvantages is isolated following:

  • systems fire water can not be used;
  • present limitations for heating and hot water systems;
  • water pipe installation of polyethylene pipe has its own nuances.

Installation of water pipeline of polyethylene pipes - especially the selection and installation

are going to buy Polyethylene pipes for water supply, it is necessary to ask the provider about the presence of permits provided by the manufacturer.Also ask about the brand of polyethylene, let you provide a copy of the certificate to the material.

If you get a specific and positive answers to their questions, you can safely make a purchase.Polyethylene pipes for water, GOST 18599-2001, must be chosen carefully, is the key to the reliability of your communications.

Attention should definitely be given to installation sites on the free pipe.It should be remembered that the distance between the flanges must allow to tighten the bolts and mount the valve, but it must remain tight.In this case, the pressure will be available at 12 atmospheres, the system will not experience voltage failures and leaks are not produced.While installing polyethylene pipes for hot water, it is necessary to observe the following rules established by the experts:

  • depth laying system must be lower no more than 20 cm depth of soil freezing in the region (for each individual should learn);
  • if the execution of welding HDPE-pipes will be produced in the trench, the width of its bottom must be at least 40 cm larger than the diameter of the conduit.This factor is needed if there is a cushion sand trench and has a thickness of 10 to 15 cm;
  • polyethylene pipe when the pipe is laid, it is necessary to fill the trench back with sand first focuses on (a layer up to 30 cm above the level of the pipe), and after the remaining soil pours.In places where the road will pass through the conduit, you must compact the sand, with each layer.