Understanding the Different Connection Methods of HDPE Pipe Fittings

High density polyethylene or HDPE is a popular choice for water and drainage mains on account of its different properties. To join long lengths of the HDPE pipes into a reliable and secure network, different connection methods are used. Typical method for joining HDPE pipes include compression type joints or electrofusion. Let us try and understand the different methods for connecting HDPE fittings:

1. Butt fusion: Generally, HDPE pipes fittings are joined through the method of heat fusion, one of which is the butt fusion method. In this method, the two HDPE pipe ends are heated to the desired temperature and are then put together with the action of force. A heater element is used in this type of fusion to melt the pipe ends. This type of joint can also be used for pipes with different wall thickness. 

2. Electrofusion: In this method, heating resistors are used inside the HDPE pipe connector. The ends of the welding machine are connected to the HDPE electrofusion fitting to heat them and connect them to the pipe. 

3. Saddle fusion: Another heat fusion method for joining HDPE pipes is saddle or conventional fusion. In this method, a saddle fusion machine is required which connects the two pipes. The pipes to be connected and the saddle fitting are both heated and fused together. 

4. Socket fusion: The socket fusion method for joining HDPE pipes is also a heat fusion method. In this, both the internal and the external surfaces of the HDPE pipe are heated and the pipe to be inserted is fixed and kept in place until the joint cools and the pipes are joined together.

5. Mechanical couplings: In the category of mechanical couplings, there are several types of fittings available which need to be chosen for the function they serve. The most common type of HDPE fittings are mechanical compressor fittings which come with threaded compression nuts and elastomer grip rings which secure the joints. One can also choose stab type mechanical fittings and bolt fittings, with the latter being used for joining HDPE pipes with steel or other HDPE pipes. 

When you want high quality HDPE pipe fittings for domestic, commercial, or industrial applications, explore the solutions from Wavin, the leading global manufacturer of sustainable plastic pipes and fittings for over six decades. 

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