Polyethylene Gas Pipe Fittings

Polyethylene gas pipe fittings are accessories used to connect, distribute or control gas flow in polyethylene (PE) gas pipeline systems. They are usually used to connect polyethylene pipes with other material pipes (such as steel pipes, cast iron pipes, copper pipes, etc.) to ensure the safety and sealing of the gas system.

Polyethylene gas pipe fittings have the advantages of corrosion resistance, anti-aging, and convenient construction, so they are widely used in urban gas, industrial gas and residential natural gas pipeline networks. Polyethylene gas pipe fittings are usually connected to the pipeline by pressure welding, hot melt welding or electric fusion welding to ensure a firm connection and prevent leakage.

Types of polyethylene gas pipe fittings

1. Polyethylene gas pipeline connectors

Straight joint: used to connect two polyethylene pipes. Common connection methods include hot melt connection and electric fusion connection.

Elbow: used to change the direction of the pipeline, usually with specifications of different angles such as 45° and 90°.

Tee: used to connect three pipes, commonly used in diversion occasions.

Reducing pipe fittings: used to connect polyethylene pipes of different diameters.

2. Polyethylene gas pipeline transition joint

The connection between polyethylene pipe and other materials (such as steel pipe, cast iron pipe, etc.) usually requires special transition joints. Common types of these transition joints include:

Compression fittings: Use the compression principle to connect polyethylene pipe and metal pipe together, with good sealing and simple construction.

Threaded fittings: Suitable for connecting PE pipe with threaded metal pipe. Sealing is achieved by tightening the threads.

Flange fittings: Flange connection is to connect PE pipe with metal pipe through flange and bolts, which is suitable for large-diameter pipeline systems.

Electrofusion transition joint: The polyethylene pipe and metal pipe are connected by electric current heating electrofusion parts, which is a high-strength connection method.

3. Polyethylene gas pipeline closure

Blind plate: Used to close one end of the pipeline to prevent gas leakage at the end of the pipeline.

Valve: Control the flow of gas, usually ball valve, check valve and other types, used to switch the airflow in the pipeline.

4. Polyethylene gas pipe supports and fixings

Pipe fixing clips: used to support and fix polyethylene pipes to ensure that the pipes will not move or be damaged during installation.

Pipe brackets: used to fix the pipes to the wall or ground.

Advantages of polyethylene gas pipe fittings

1. Strong corrosion resistance: Polyethylene itself has excellent corrosion resistance and can effectively resist the erosion of soil, moisture and chemicals.

2. Good anti-aging: Polyethylene materials have good UV resistance and antioxidant capabilities, and the pipe fittings can maintain a long service life even when exposed to sunlight.

3. Simple construction: Polyethylene gas pipe fittings are easy and quick to install. The connection method is mainly through hot melt or electric fusion welding. No complicated welding equipment is required, which reduces the difficulty of construction.

4. Good sealing: The connection of PE pipe fittings is generally very sealed, which effectively avoids gas leakage and ensures the safety of the gas system.

5. Light weight: Polyethylene material has a low density and is much lighter than metal pipes, reducing transportation and installation costs.

6. Sustainability: Polyethylene materials can be recycled after use, meeting environmental protection requirements.

Application areas

Polyethylene gas pipe fittings are mainly used in the following areas:

Urban gas pipeline network: used to transport gas to various residential and commercial areas.

Industrial gas transportation: used for gas transportation in industrial fields such as petrochemical, steel, and electricity.

Natural gas transportation: including natural gas supply systems for homes and commercial buildings.