PE Pipe Connection

1. Basic Definition:

PE pipe connection is a specialized connection method between plastic-coated composite steel pipes and PE pipes. Common forms include heat fusion connection, electrofusion connection, and socket sealing ring connection. It adapts to the characteristics of the PE coating on the plastic-coated steel pipe, ensuring corrosion resistance and sealing performance at the joint.

2. Advantages and Features:

Excellent Corrosion Resistance: The PE coating bonds tightly to the pipe substrate, with no exposed metal at the joint. It resists corrosion from acids, alkalis, salt spray, and microorganisms, achieving a buried service life of over 50 years.

Low Fluid Resistance: The smooth inner wall, with a roughness coefficient ≤0.008, reduces fluid resistance by more than 30% compared to traditional steel pipes, reducing pumping energy consumption.

3. Applicable Fields:

Municipal drinking water and domestic water supply pipelines; buried gas transmission and chemical media pipelines; agricultural irrigation and water conservancy projects; pipelines in the food and pharmaceutical industries with high requirements for corrosion resistance and hygiene. 

4. Implementation Standards:

Water Supply Plastic-Coated Composite Steel Pipes CJ/T 120-2016;

Plastic Pipes for Fluid Transportation - Polyethylene (PE) Pipes GB/T 13663-2018;

Code for Acceptance of Construction Quality of Building Water Supply, Drainage and Heating Engineering** GB 50242-2016.

5.Connection Characteristics:

The connection type is permanent; not suitable for high temperature and high pressure conditions. The operating temperature is typically ≤60℃, and the pressure is ≤1.6MPa.