180mm (DN180) HDPE (high-density polyethylene) pipe is a medium-caliber plastic pipe widely used in municipal, industrial, agricultural and other fields. Its outer diameter is usually 180mm, and the wall thickness can be adjusted according to different pressure levels (such as PN6, PN8, PN10, PN16) to meet different engineering needs.
{C}1. {C}Size parameters
|
Parameter |
Standard Value |
|
Nominal Diameter (DN) |
180 mm |
|
Outer Diameter (OD) |
180 mm (±tolerance) |
|
Wall Thickness (SDR) |
Varies by pressure rating (e.g. SDR11, SDR17, etc.) |
|
Standard Length |
6m, 12m (customizable) |
|
Pressure Capacity |
0.6MPa~1.6MPa (PN6~PN16) |
2. Material properties
Corrosion resistance: Suitable for acid and alkali environments, strong resistance to chemical corrosion.
Flexibility: Can adapt to a certain degree of soil settlement, excellent seismic performance.
Lightweight: Compared with metal pipes, it is lighter and easier to transport and install.
Service life: The design life can reach more than 50 years.
180mm HDPE pipes are widely used in the following fields due to their moderate pipe diameter and good pressure bearing capacity:
1. Municipal water supply and drainage projects
HDPE pipe for water supply: in line with GB/T 13663 standard to ensure water quality safety.
Sewage discharge: corrosion-resistant, suitable for municipal sewage pipe network.
Rainwater discharge: large flow drainage to reduce the risk of waterlogging.
2. Industrial fluid transportation
Chemical pipelines: transport acid and alkali liquids to avoid corrosion problems of metal pipes.
Mine drainage: strong wear resistance, suitable for slurry transportation.
Food grade application: in line with FDA standards, can be used in food and beverage industry.
3. Agricultural irrigation
Drip irrigation system: suitable for large-scale farmland irrigation to reduce water waste.
Drainage pipe: used for farmland drainage to improve soil permeability.
4. Power and communication protection
Cable casing: protect underground cables to prevent mechanical damage and moisture erosion.
Fiber optic protective tube: good flexibility, easy to lay fiber optic.
1. Connection method
Hot-melt connection: suitable for large-diameter pipes to ensure sealing.
Electric fusion connection: suitable for complex environments and convenient construction.
Flange connection: used for connection with valves, pump stations and other equipment.
2. Construction precautions
Trench excavation: ensure that the bottom of the trench is flat to avoid sharp stones damaging the pipe.
Backfill requirements: use fine sand or soft soil to backfill to prevent the pipe from being deformed under pressure.
Pressure test: a water pressure test is required after installation to ensure no leakage.
|
Comparison Item |
HDPE Pipe |
Steel Pipe |
PVC Pipe |
|
Corrosion Resistance |
Excellent |
Poor (requires anti-corrosion treatment) |
Good |
|
Weight |
Light |
Heavy |
Relatively Light |
|
Flexibility |
High |
Low |
Medium |
|
Installation Cost |
Low |
High |
Medium |
|
Service Life |
50+ years |
20-30 years |
30-40 years |
Market demand: With the transformation of urban pipe networks and the advancement of rural water conservancy construction, the demand for 180mm HDPE pipes continues to grow.
Technological innovation: New anti-UV and anti-static HDPE pipes are being developed for more stringent environments.
Environmental protection trend: HDPE is recyclable and meets the requirements of green buildings.
180mm HDPE pipe has become an important choice in municipal, industrial, agricultural and other fields due to its excellent corrosion resistance, flexibility and long life. Correct selection and standardized installation can ensure its long-term stable operation and reduce maintenance costs. In the future, with the advancement of material technology, HDPE pipes will play a key role in more fields.
