SIFFO PIPE

Healthier, more environmentally friendly and more efficient water conservancy engineering pipe manufacture

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UPVC pipe is a plastic pipe made of polyvinyl chloride (PVC) resin and does not contain plasticizer. UPVC pipe has the advantages of good corrosion resistance and flexibility, so it is particularly suitable for water supply pipe network.

High quality corrosion resistant UPVC water supply and drainage pipe manufacturers wholesale customization

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UPVC pipes  Features：

 

‌Excellent corrosion resistance‌

 

‌Chemical stability‌: UPVC (unplasticized polyvinyl chloride) can withstand strong acids (such as sulfuric acid and hydrochloric acid with a concentration of ≤30%), strong alkalis (such as sodium hydroxide solution), salts and most organic solvents (such as ethanol and acetone), and is widely used in chemical, electroplating, sewage treatment and other fields.
‌Anti-corrosion mechanism‌:The molecular structure is tight, no plasticizer is precipitated, and the chemical medium is blocked from penetrating;
The stabilizer (such as calcium zinc complex) neutralizes the HCl produced by the decomposition of the material to prevent autocatalytic degradation.
‌Case‌: After a chemical plant replaced stainless steel with UPVC for hydrochloric acid pipelines, its service life was extended from 3 years to 15 years.

‌

Lightweight and high installation efficiency‌

 

‌Weight advantage‌: The density is only 1.38-1.55 g/cm³, which is 1/5 of the same specification steel pipe and 1/10 of the cast iron pipe, reducing transportation and hoisting costs by 30%-50%.
‌Installation technology‌:Use rubber ring socket connection or adhesive bonding, no welding or flange connection required;
The construction speed is more than 3 times that of metal pipes (for example, the installation efficiency of DN100 pipes can reach 20 meters/hour).

 

‌Flame retardant and fire safety‌


‌Flame retardant grade‌: Oxygen index ≥45%, reaching UL94 V-0 standard, low smoke emission during combustion (smoke density level ≤15), suitable for fire prevention scenes such as subway tunnels and hospitals.
‌Safety features‌: No combustion-supporting gas is released at high temperatures, and the spread of fire can be effectively delayed in case of fire.

 

‌Extra-long service life‌


‌Anti-aging performance‌: By adding ultraviolet absorbers (such as carbon black, titanium dioxide), the outdoor service life can reach more than 30 years (ordinary PVC is only 8-10 years).
‌Creep performance‌: 50-year long-term hydrostatic strength retention rate >80% (ISO 9080 standard), maintenance-free buried engineering.

 

‌ Hygiene and environmental protection ‌


‌ Drinking water safety ‌: Passed NSF/ANSI 61 certification, smooth inner wall (Ra≤0.2μm), microbial attachment rate is 90% lower than that of metal pipes, suitable for direct drinking water systems.
‌ Recyclability ‌: Waste can be crushed and granulated, with a recovery rate of ＞70%, in line with EU RoHS environmental protection standards.
‌ Excellent insulation performance ‌
‌ Electrical insulation ‌: Volume resistivity ≥1×10¹⁴Ω·cm, withstand voltage strength ≥25kV/mm, can be directly used for 10kV cable protection sleeves.
‌ Anti-electromagnetic interference ‌: Shielding coefficient ≤0.5, suitable for substations, communication base stations and other scenarios.

   

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