Pvc pipes for water supply: basic characteristics and

10-06-2018
Pipes

Laying a new water supply, sewage or replacement of old pipes implies a long and uninterrupted operation. When choosing a material, special attention should be paid to the quality, service life and degree of complexity of installation. Practically affordable, lightweight pipes made of synthetic components are used everywhere.

In the photo is a pipe made of polyvinyl chloride.

What is PVC pipe

Polyvinyl chloride is a polymer, in many respects ahead of identical in composition materials and has a number of advantages. The range of application is very wide, by adjusting the amount and availability of additives, you can get products for various purposes.

Note three categories of products for the transport of liquid and gaseous substances:

  • free-flow;
  • pressure head;
  • transporting sparse media.

Note! Depending on the destination, laid the technical characteristics of PVC pipes for plumbing. In the overwhelming majority of cases, a pressure category with enhanced properties that can withstand high pressure is used for water supply. Non-pressure corrugated elements are optimal for storm sewers.

Merits

Comparative chart of the hygiene of pipes from different materials.
  1. Products are non-toxic, harmless to humans and the environment.
  2. All PVC pipes and plumbing fittings are resistant to chemicals and do not react with them.
  3. Mold, fungi and bacteria do not breed on the surfaces of the material.
  4. Excellent throughput.
  5. Weigh five times less than metal counterparts.
  6. Not flammable, even when ignited immediately fade.
  7. Reasonable price with high quality.
  8. Absolutely non-corrosive.
  9. The solid fractions on the inner surface are practically not deposited.
  10. The service life of at least half a century.
Products can be used for pressure and free-flow water supply.
  1. Very resilient, resistant to shock.
  2. Extremely easy installation, including do it yourself, without helpers.
  3. They behave satisfactorily on mobile soils due to their high plasticity.
  4. Correctly made connections are absolutely tight.
  5. Transported and stored without problems.
  6. The various sizes and the range of a fitting of all configurations expand scope of application.

disadvantages

The main disadvantage is the poor resistance to constantly elevated temperatures.

Therefore, the instruction does not recommend the use of PVC pipelines for hot water supply.

  1. Impractical laying in frozen ground. In extreme cases, it is necessary to warm the highway.
  2. Low temperatures greatly reduce the plasticity of the material, which leads to cracking.
  3. Cracks and scratches are unacceptable, a rather gentle pipe in this case will not last long.
  4. Connection with analogues from metal-plastic is possible, but due to certain technical difficulties it is expensive.

Note! Although the cost of PVC pipes for water supply is quite attractive, for pressure and, especially, hot water, they are not the most profitable option. Recommended products, to a greater extent, for the transport of gaseous substances, as well as for sewage drains.

Features and technology docking

Pipe products.

Be sure to ask the question - how to connect the acquired pipe when installing the line.

There are several methods, each of which is optimal in certain conditions.

  1. Using a special adhesive composition (cold welding).
  2. Into the socket. It is considered the fastest and easiest way. Carefully cleaned internal pipe sections are lubricated with a silicone-based compound. Next, the pipe is introduced into the socket to the marked line, following the exact location of the joined segments, axially relative to each other.
  3. Flange connection. It uses a rubber gasket and bolts the cast iron flange.
  4. Coupling docking. It is recommended for use if the pipe diameters range from 50 mm to 110 mm. A piece of a given size is applied to the clutch. Having made a marking, put glue structure on internal surfaces of the coupling and pipe, then fix on marks.

Key properties of PVC-U pipes

The parameters of modern building materials are shown in the table below.

Characteristic Indicator
Density 1.4 g / cm3
Thermal conductivity 0.15 - 0.25 W / m • ° C
Tensile yield strength 50–56 Mpa
Tensile strength from rupture 30–50 Mpa
Elongation at break 50%
Combustibility not flammable
Life time 50 years

Product Standards

Just as on any other material, there is also a GOST for plumbing PVC pipes.

Products made according to the standard meet all prescribed requirements and standards.

  1. GOST R №51613 / 2000.
  2. TU 2248/056/72311668/2007.

Note! A bona fide manufacturer necessarily follows the rules. However, when purchasing a material, pay attention to the availability of certificates that comply with the standard.

Household use

Drawing of a greenhouse from vinyl pipes.

It happens that in the back of the case there are leftovers and trimming of pipes left over from repairs.

Where to apply them, and what is useful in the household make?

  1. PVC pipe 20 is suitable for a variety of designs, and the longer the segments, the more space for imagination. Fence, compact greenhouse, excellent insulation for wires laid underground.
  2. Larger diameter pipes are good for greenhouse ceilings, or foundations for a canopy cover. Keep in mind that before you make an arch of PVC water pipes, it does not hurt to measure the required footage.
  3. Small pieces are useful for joining fragments or building an irrigation hose.

Conclusion

When selecting a material for water supply, it is not unreasonably captivating an acceptable cost, ease of installation, and a decent service life of PVC pipes. Thanks to these properties, they are gaining popularity every day.

We offer to view the video in this article, with detailed information on today's topic.