Corrosion Resistance:

U-PVC (Polyvinyl Chloride) pipes are non-conductive to electric current and resistant to electrochemical reactions caused by acids, bases, and salts that lead to corrosion in metals. This feature exists on the inner and outer surface of PVC pipes. Therefore, using U-PVC pipes in applications where there is aggressive soil is very cost-effective.

High Chemical Resistance:

PVC is resistant to many alcohols, oils, and non-aromatic petroleum substances. U-PVC pipes also resist most corrosive substances such as inorganic acids, bases, and salts. For typical water supply tasks, U-PVC pipes are completely resistant to chemicals present in soil and water. Chemical resistance becomes an issue only when there are unusual environments or when the pipes are used for chemical transport.

High Modulus of Elasticity and Flexibility:

The resistance of U-PVC pipes to breakage is considered one of their important functional advantages. U-PVC pipes are capable of deforming without breaking under load. The high modulus of elasticity of U-PVC is considered a significant advantage for technical applications, especially in conditions where soil movement or vibration is likely (earthquakes, etc.). This high quantity reduces the phenomenon of ovality in these pipes. Also, since the thickness of sewer pipes is determined based on the amount of modulus of elasticity of the resin used in pipe manufacturing, the high modulus of U-PVC reduces the pipe thickness and increases the flow cross-sectional area.

Long-Term Tensile Strength:

U-PVC pipes are formulated to have high long-term tensile strength. The minimum required strength (MRS) (used in the design of pressure pipes) for U-PVC pipes is approximately twice as much as the corresponding values for other plastic pipes such as polyethylene. For this reason, the thickness of U-PVC pipes is lower compared to other plastic pipes, resulting in less weight, which is a significant advantage.

Strength-to-Weight Ratio, Lightweight:

The high strength of U-PVC reduces the thickness and weight of these pipes. U-PVC pipes have a noticeable lightweight advantage, which is an important safety aspect. Easy transportation minimizes work-related damages and facilitates cheaper installation and transportation. A person can easily carry two 6-meter pipes with a size of 110, while they can only carry less than 1.5 meters of 110 iron pipe with the same force.

Water-Tight Connections:

An important advantage for any water pipe is the fittings. U-PVC (Polyvinyl Chloride) pipes with high insertion depth and O-ring connection systems have been able to outperform many traditional products through this advantage.

Resistance to Abrasion/Scratch:

U-PVC pipes demonstrate very high resistance to abrasion and scratches. It has been proven that PVC pipes have much higher durability compared to metal, cement, and clay pipes in conveying abrasive materials.

Impact Strength:

Under normal conditions, U-PVC pipes have relatively high resistance to impact damage compared to clay, cement, and most common pipe materials. Despite a decrease in impact resistance of U-PVC pipes at very low temperatures, their impact strength remains higher than necessary.

Low Roughness:

The roughness of a pipe is a very important and influential factor in creating pressure drop and reducing flow rate. Due to their highly polished internal surfaces (low roughness coefficient and friction), U-PVC pipes show very low resistance to fluid flow. Additionally, in many pipes, bacteria accumulate in rough areas with pipe height differences (biofilm formation) and gradually block the water flow path, leading to pressure drop and negatively affecting the potability of water. The low hydraulic roughness of U-PVC pipes, by preventing biofilm formation, not only reduces pressure drop but also prevents sludge deposition in sewer networks, reducing the likelihood of contamination in potable water distribution networks. Therefore, the maintenance costs of these pipes are low, and the initial pipeline design is optimized.

Water Quality:

The use of appropriate formulations for producing U-PVC pipes allows them to meet NSF 61-62 standards for drinking water transmission, ensuring that lead, cadmium, and other toxic elements such as mercury, chromium, cadmium, and barium are below the permissible standard limits.

Flame Resistance:

U-PVC pipes ignite with difficulty and do not continue to burn in the absence of an external flame source. The autoignition temperature of PVC itself is 454 degrees Celsius, which is much higher than most building materials. When PVC burns, HCl gas is released, which prevents oxygen from reaching the inflamed area. This is why PVC is called a self-extinguishing material.

Properties and Advantages of U-PVC Pipes

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