Product Overview
high density polypropylene pipes are extruded from engineering-grade polypropylene granules. These pipes are non-toxic, odorless, and widely used in chemical, environmental protection, food hygiene, and building water supply and drainage industries.
Main Classifications
- PP-H Pipes (Homopolymer Polypropylene Pipes): Made from homopolymer polypropylene, these pipes feature high rigidity, good heat resistance, and a long-term operating temperature up to 95℃. They exhibit excellent chemical corrosion resistance and are suitable for low-pressure or no-pressure chemical fluid transportation and hot water transportation applications.
- PP-B Pipes (Block Copolymer Polypropylene Pipes): Modified using a block copolymerization process, these pipes offer superior impact resistance compared to PP-H pipes and better low-temperature toughness. They can be used for short periods at -20℃ and are suitable for buried drainage, sewage, and low-temperature fluid transportation.
- PP-R Pipes (Random Copolymer Polypropylene Pipes): Random copolymerization modification gives them both rigidity and toughness, outstanding high-temperature resistance, and a long-term operating temperature ≤70℃. They meet hygiene standards and are commonly used for building hot and cold water and drinking water transportation.
PP-HM pipe (high-modulus polypropylene pipe) is a reinforced modified engineering-grade PP pipe with a ring stiffness of SN8~SN16, exhibiting strong resistance to settlement and external pressure. It is often manufactured as double-wall corrugated pipes or coiled pipes, suitable for heavy-duty applications such as municipal underground drainage and chemical industrial park sewage discharge.
Performance Advantages
- Chemical Corrosion Resistance: Resistant to acids, alkalis, salts, and most organic solvents, suitable for conveying industrial media in chemical and electroplating industries.
- Lightweight and Easy to Install: With a density only 1/8 that of steel pipes, it can be connected by hot-melt butt welding or socket joints, resulting in high construction efficiency.
- Anti-aging (Optional): With the addition of UV-resistant additives, it can be used in outdoor environments exposed to direct sunlight, with a service life of over 50 years.
- Environmentally Friendly and Recyclable: The raw materials are non-toxic, and waste pipes can be recycled and reprocessed, meeting green engineering requirements.
Performance index of PP pipe
|
Indicator name |
Company |
Index value |
|
Density |
g/cm² |
0.90~0.93 |
|
Tensile strength |
MPa |
≥23 |
|
Elongation at break |
% |
≥150 |
|
Lzod notched impact strength |
KJ/M² |
≥10 |
|
Thermal deformation temperature ℃ |
≥90 |
|
|
20℃ hydraulic test(instantaneous blasting stress) |
MPa |
≥2.2 |
|
Flat test |
Press to 1/2 of the outer diameter of the pipe without cracks |
|
|
Coefficient of linear expansion |
10-5/℃ |
11~13 |
Application Scenarios
New Energy and Semiconductor:
Suitable for hydrogen energy and photovoltaic coolant transportation; meets the requirements for transporting high-purity ultrapure water, specialty gases, and electrolytes in semiconductor manufacturing.
01
Pharmaceutical Industry:
Suitable for transporting pharmaceutical raw materials, liquids, and purified water; features non-toxicity, no leaching, and easy cleaning; flame-retardant conductive pipes support the safe emission of hazardous gases.
02
Chemical and Power Industries:
High pressure resistant, corrosion resistant, and high temperature resistant; suitable for power plant steam, circulating water, and pickling processes.
03
Environmental Protection and Municipal Engineering:
Used for wastewater collection and treatment and exhaust gas transportation; acid and alkali resistant, anti-aging, and adaptable to complex working conditions such as underground installations; also suitable for building ventilation systems to improve air quality.
04
Mining and Metallurgy:
Reliably transports slurry, waste residue, cooling water, and other media; adaptable to humid, high-impurity, and high-temperature smelting environments underground.
05
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