Precautions for PE pipeline layout and installation

Precautions for PE pipeline layout and installation

PE pipe is a thermoplastic resin with high crystallinity and non polarity. The surface of the original HDPE is milky white, with a certain degree of translucency in the thin section. PE has excellent resistance to most household and industrial chemicals.

Characteristics of PE pipes

1. Reliable connection: The electric heating fusion method is used to connect the polyethylene pipeline systems, and the strength of the joints is higher than the strength of the pipeline body.

2. Good low-temperature impact resistance: Polyethylene has an extremely low low-temperature embrittlement temperature and can be safely used within the temperature range of -60 to 60 ℃. During winter construction, due to the good impact resistance of the data, pipe cracking will not occur.

3. Good stress cracking resistance: HDPE has low notch sensitivity, high shear strength, and excellent scratch resistance. It also has outstanding environmental stress cracking resistance.

4. Good chemical corrosion resistance: HDPE pipes can withstand the corrosion of various chemical media, and the chemical substances present in the soil will not form any degradation effect on the pipes. Polyethylene is an insulator of electricity, therefore it will not exhibit signs of decay, rust, or electrochemical corrosion; Moreover, it will not promote the growth of algae, bacteria, or fungi.

5. Aging resistance and long service life: Polyethylene pipes rich in 2-2.5% uniformly distributed carbon black can be stored outdoors or used for 50 years without being harmed by UV radiation.

Issues to be noted in the layout of PE pipes and pipelines

1. PE buried pipes should not pass through buildings or structural foundations. When it is necessary to pass through, protective sleeves or other protective measures should be taken to protect the foundation;

2. When laying PE pipes below the low elevation of the foundation of buildings or structures, they shall not be within the range of the diffusion angle under compression. The diffusion angle is generally taken as 45 °;

3. PE pipes should be laid below the freezing line;

4. Residential communities, industrial parks, and industrial and mining enterprises can have water distribution pipes with a nominal outer diameter of 200mm or less arranged around the building, and the clear distance from the outer wall should not be less than 1.00m;

5. PE pipes are strictly prohibited from crossing rainwater and sewage inspection wells and drainage irrigation channels;

Shandong Kungang Metal Technology Co., Ltd. specializes in PE water supply pipes and PE gas pipes, both of which have passed the quality inspection of the authority department and are of excellent quality. The enterprise strictly implements the IS09001:2008 international quality management system standard, taking its products to a new level. The enterprise also has strong design and development capabilities, continuously increasing the development of new products, improving product quality and technological content to meet market demand. We hope to work together and create brilliance!