Introduction
Polyethylene pipes (PE Pipes) are known today as one of the main components of fluid transmission networks in the world. With features such as high pressure resistance, long life, flexibility, light weight and chemical resistance, these pipes have become a suitable alternative to metal and concrete pipes in many projects.
Important features of polyethylene pipes
- Long life (more than 50 years under standard conditions)
- Resistance to rust, decay and chemicals
- Flexibility and resistance to earthquakes and subsidence
- Complete sealing of joints with thermal and electrofusion welding methods
- Smooth and polished internal surface → Reduces pressure drop and saves pumping energy
- Low maintenance cost compared to other pipes
Application of polyethylene pipes in various industries
1-Water and wastewater industry
- Transport of urban and rural drinking water while maintaining water quality and hygiene
- Collection and transport of urban and industrial wastewater
- Use in pressurized water supply networks and main transmission lines
2-Agriculture and irrigation
- Implementation of drip and sprinkler irrigation systems
- Transferring water from wells, canals and storage ponds to fields
- Use in drainage networks and soil water level control
3-Gas supply industry
- Due to their high resistance to pressure and impact, polyethylene pipes are widely used in urban and rural gas supply networks.
- High safety and reduced risk of gas leaks are among their most important advantages.
4-Mineral and chemical industries
- Transport of corrosive and acidic chemicals
- Used in mines for transporting slurry, sludge and industrial effluents
- Resistant to abrasion and high pressure
5-Construction and facilities industry
- Internal water and sewage piping in buildings
- Transfer of fire water and cooling and heating systems
- Use as a protective sheath for electrical and fiber optic cables
6-Maritime and fisheries industry
- Due to their buoyancy and resistance to seawater, polyethylene pipes are used to transport salt water and build floating docks.
- They are also used as water and food transfer lines in fish and shrimp farming.
7-Environmental projects
- Use in sanitary landfill systems to collect leachate
- Transfer industrial and municipal wastewater without leakage into the environment
Production and quality standards
Polyethylene pipes must be manufactured according to internationally recognized standards, including:
- ISO 4427 (Pressure water transfer)
- ISO 4437 (Gas supply)
- EN 12201 (European Standard for Polyethylene Pipes)
- National Standard of Iran ISIRI 14427
Conclusion
Polyethylene pipes, with a variety of sizes and working pressures, are used today in most industries from agriculture and construction to gas supply and chemical industries. Their high durability, flexibility and unparalleled resistance have made these pipes one of the best options for infrastructure and industrial projects around the world.