Technical Features

UPVC Pipes are made from high quality raw material that is totally free from Heavy Metals such as Lead. It’s completely 100% safe for Potable Water application and it is Environment friendly while still maintaining the same desirable physical properties that UPVC Pipes are known for:

• Total heavy metal free.
• Hygiene properties meet standard requirements.
• Mechanical properties meet standard requirements.
• More thermal stability.

Since the main chain of the polymer is made by single bonds of carbon atoms, PVC has excellent chemical resistance, as with other general-purpose plastics such as PE, PP, or PS. The chart shows the chemical resistance of PVC in comparison with other plastics.

The entire production process, from product conception to delivery to the customer, is developed using the most advanced technologies to guarantee the highest quality and to minimize errors.

UPVC piping systems belong to the category of so called "flexible designed pipes". This flexibility provides a great advantage compared to pipes made of traditional materials such as concrete or clay.
For flexible designed pipes: the soil supports all the stresses on the pipe (including soil weight) and the pipes deform slightly but do not break.
For pipes made of traditional materials, the soil concentrates the stresses directly on to the crown of the pipe; these pipes do not deform but a failure mode results in a break in the pipe.
For most of the "good quality soils" (e.g. granular types of soil) the soil supports all the stresses and, as this type of soil can be easily compacted, the deformation of the PVC pipes is only 1 or 2% which does not affect the functional properties nor the tightness of the systems at all. In weak soils ("plastic soils") the PVC piping systems deform slightly more (in the range of 5% to 10%) but they still perform perfectly well.
For all piping materials very difficult soil conditions will need a thorough examination or calculation by qualified civil engineers and certain European or national standards ask for static calculation for the piping systems.

PIPES has inherently superior fire retarding properties due to its chlorine content, even in the absence of fire retardants. For example, the ignition temperature of PVC is as high as 455°C, and is a material with less risk for fire incidents since it is not ignited easily.
Furthermore, the heat released in burning is considerably lower with PVC, when compared with those for PE and PP. PVC therefore contributes much less to spreading fire to nearby materials even while burning.

Since the main chain of the polymer is made by single bonds of carbon atoms, PVC has excellent chemical resistance, as with other general-purpose plastics such as PE, PP, or PS. The chart shows the chemical resistance of PVC in comparison with other plastics.

- The durability of PVC pipes is related, as it is for all other thermoplastics materials, to the chemical degradation of the polymer used in the pipes. However unlike other thermoplastic pipes PVC pipes do not oxidise.
- Stabilisers are used in PVC pipes to prevent degradation of the polymer during the extrusion process and storage of the pipes before they are buried in the ground. However, when the pipes are buried in the ground, no chemical degradation is expected to take place. For this reason the durability of the PVC material in buried pipes is expected to be very good (maybe even be more than 1000 years).
- In standardised pipes for potable water (EN 1452) the expected lifetime of PVC pipes under pressure is extrapolated based on hoop stress testing of pipes for up to 20000 hours. This allows an estimation of the durability by extrapolation to a life expectancy under pressure of 50 to100 years.
- Real experience in Germany3 has shown that buried PVC pressure pipes dug up after 60 years of active use were proven to be fit for purpose when analyzed and likely to have a further life expectancy of 50 years.

UPVC PIPE is a chemically stable material, which shows little change in molecular structure, and also exhibits little change in its mechanical strength. However, long chain polymers are viscoelastic materials and can be deformed by continuous application of exterior force, even if the applied force is well below their yield point. This is called creep deformation. Although PVC is a viscoelastic material, its creep deformation is very low compared with other plastics due to limited molecular motion at ordinary temperature, in contrast to PE and PP which have greater molecular motion in their amorphous sections.

UPVC PIPES have great impact strength over their corresponding cast iron or clay pipes, which cut losses arising from the breakage due to mishandling during transportation, installation etc.