PE water supply pipeline

Product instructions for polyethylene (PE) pipes

for water supply

I) Product Features

1. Easy connection, simple construction, and various

methods: PE pipes are light, easy to carry, easy to weld,

and have fewer welding ports. When the pipeline is long,

coil laying is used (generally refers to pipes with a 

diameter of less than 63 mm). PE pipe requirements are 

much lower than steel pipe requirements. In addition, the 

pipe can be laid underwater by sinking, which greatly 

reduces the difficulty of construction and engineering costs.

2. Long service life and strong corrosion resistance. PE pipes

have strong corrosion resistance. Polyethylene is an inert

material that can resist acid and alkali corrosion. It is 

itself an excellent anti-corrosion material. General soil, acid,

and alkali factors will not cause corrosion and damage to the

pipe. The service life is generally more than 50 years.

3. Large flow capacity, high pipe wall finish, and not easy to 

scale. The inner wall of the PE pipe is smooth and does not scale.

The equivalent absolute roughness ratio of its inner surface is

1/20 of that of steel. The flow capacity of PE pipes with the 

same diameter, length, and pressure is about 30% greater than that

of steel pipes, so the economic advantage is obvious. Compared 

with metal pipes, PE pipes can reduce the investment in engineering 

diameter pipes, which can further reduce the cost of engineering.

4. Lightweight and convenient construction. The pipe is light, 

only 1/7 of the weight of steel pipes and 1/2 of the weight of glass 

fiber-reinforced plastic pipes, but its life is 4 to 5 times that of

steel pipes. It is convenient to transport and install, which can 

greatly reduce the labor intensity of workers and improve work efficiency.

5. Good toughness and flexibility: high-toughness pipes have an elongation 

at break of more than 350%, have strong adaptability to uneven foundation

settlement and dislocation, and have good seismic resistance.

6. High strength, impact resistance, and excellent mechanical properties.

The PE resin used in the pipe has good anti-aging performance, is 

not easy to be brittle, has toughness, can absorb impact energy, and

is less affected by terrain settlement during installation.

7. Good sealing: The PE pipe itself adopts a fusion connection, which

essentially ensures the identity of the interface material structure

and the pipe body itself, and realizes the integration of the joint

and the pipe. The tensile strength and burst strength of its interface

are higher than the pipe body, which can effectively resist the hoop

stress and axial stress generated by the internal pressure. 

Therefore, compared with rubber ring joints or other mechanical 

joints, there is no risk of leakage caused by joint distortion, 

and the sealing performance is very good.

8. Good stress crack resistance: PE pipe has low notch sensitivity,

high shear strength and excellent anti-mark ability, and its 

environmental stress resistance is very outstanding.

9. Good low-temperature impact resistance: The low-temperature 

brittle temperature of polyethylene is extremely low, and it can be 

safely used in the temperature range of -20 to 40℃. During winter 

construction, due to the good impact resistance of the material, the

pipe will not crack.

10. Various new construction methods: PE pipes have various construction

technologies. In addition to the traditional excavation method, 

a variety of new non-excavation technologies such as jacking, directional

drilling, lining, cracking pipe, etc. can also be used for construction.

This is the only choice for some places where excavation is not allowed, 

so PE pipes have a wider range of applications.

II) Product implementation standards

The polyethylene (PE) pipes for water supply produced by our company mainly

implement the following standards GB/T 13663.2-2018 Polyethylene (PE) 

pipes for water supply.

GB/T 17219-1998 Safety evaluation standard for drinking water transmission

and distribution equipment and protective materials Q/HLT 016-2010 

Polyethylene (PE) pipes for water supply.

III) Main uses and scope of application

1. Rural and urban water supply (PE pipes have comprehensive advantages 

such as safety, hygiene, and convenient construction, and have become

ideal pipes for rural and urban water supply.) Generally, its working

temperature can be safely used below -20 to 40°C.

2. Food and chemical industry (PE pipes have unique chemical corrosion

resistance and can be used for the transportation or discharge of 

various acid, alkali, and salt solutions. They have a long service life

and low cost and maintenance.)

3. Sand and slurry transportation (PE pipes have a wear resistance of four

times that of steel pipes and can be widely used to transport ore, fly

ash from power plants, and slurry from river dredging.)

4. Replacement of cement pipes, cast iron, and steel pipes (for the 

transformation of cement pipes and cast iron pipes originally laid 

in the city, the PE pipes can be directly inserted into the old pipes 

for replacement without large-scale excavation. The project cost is 

low and the construction time is short. It is especially suitable for

pipeline transformation in old urban areas.)

5. Forest greening pipeline network (garden greening requires a large

number of water pipelines, and PE pipelines are low in cost and worth promoting.)

6. Trenchless special pipeline network (mainly suitable for trenchless

construction of rural rivers and traction construction of urban roads.)

7. Replacement of drainage pipeline networks that need to bear pressure to pass pressure test.