PE (polyethylene) pipes are widely used in water conservancy, agricultural irrigation, building water supply and drainage, and industrial pipeline systems. Its corrosion resistance, pressure resistance, and long service life make PE pipes an ideal pipe material. During the installation process, the correct connection method is crucial to ensure the stability and long-term reliability of the pipeline system. This article will introduce How to connect pe pipe?
Hot melt connection is one of the most common methods for PE pipe connection, especially for large-diameter pipeline systems. Hot melt connection heats the end of the pipe to melt its surface, then butts the two ends of the pipe, and cools and solidifies under a certain pressure.
Operation steps:
1. Prepare tools and materials: You need to prepare Hdpe Pipe Welding Machine (also known as hot melt butt welding machine), PE pipes, pipe fittings, etc.
2. Clean the pipe: Make sure there is no dust, oil and impurities at both ends of the pipe to avoid affecting the hot melt effect.
3. Heating: Insert the end of the pipe into the heating mold of the hot melt butt welding machine to ensure uniform heating and reach the specified temperature.
4. Butt joint and pressurization: Quickly butt the two ends of the heated pipe and apply appropriate pressure to completely fuse the ends of the pipe.
5. Cooling: Maintain pressure until the joint cools down to ensure a firm connection.
Advantages:
Hot-melt connection has no gaps, firm connection, strong pressure resistance, and is suitable for most PE pipes.
Electrofusion connection is similar to hot melt connection, but the heating method is different. The end of the pipe is heated by the electric heating wire until the surface of the pipe softens to form a firm connection.
Operation steps:
1. Install the electrofusion ring: Install HDPE Electrofusion Fittings at the pipe joint.
2. Heating: Heat the electric heating wire through electric current until both ends of the PE pipe soften.
3. Butt joint and pressurization: Butt the ends of the two sections of PE pipe and maintain a certain pressure until the joint cools and solidifies.
Advantages:
Electrofusion connection is suitable for the connection of small-diameter pipes, easy to connect and wide range of applications.
Mechanical connection is a method of connecting PE pipes together using connectors and sealing rings. Common mechanical connection methods include threaded connection, clamp connection, etc.
Threaded connection: Suitable for the connection of small-diameter PE pipes, using threaded pipe fittings and sealing rings to achieve sealing.
Clamp connection: Using clamps and rubber sealing rings, the pipes are tightly connected through clamps, which is suitable for small and medium-diameter pipes.
Operation steps:
1. Insert the connector: Insert the PE pipe end into the connector and ensure that the sealing ring is correctly placed.
2. Tighten the connection: Tighten the pipe connection by threads or clamps to ensure sealing.
3. Check the sealing: After the connection is completed, perform water test or pressure test to ensure that there is no leakage.
Advantages:
Mechanical connection is easy and quick to install, suitable for maintenance or temporary connection.
Solvent welding is a method of softening and bonding the surface of pipes through solvents, and is commonly used to connect PE pipes to certain pipe fittings.
Operation steps:
1. Apply solvent: Apply solvent evenly on the connection surface of PE pipes and pipe fittings.
2. Connect: Quickly connect the pipes and pipe fittings, and maintain a certain pressure until the joints harden.
Advantages:
Suitable for connection in some special cases, simple operation.
No matter which PE pipe connection method is used, it is necessary to ensure the operation specifications to avoid water leakage, air leakage and other problems. Pay attention to cleaning during the connection process to ensure that each connection can achieve a tight seal, thereby improving the service life and safety of the pipeline system. Choosing a suitable connection method can better meet the needs of different projects and improve the reliability of the PE pipeline system.
