Electrophogenic is a method of connecting medium-density polyethylene, high-density polyethylene and other plastic pipes using special fittings that have built-in thermal elements and are used to weld fittings. electrofusion fittings installation should only be performed by personnel who are trained and qualified to weld electrophoresis.
Large diameter of electrofusion fittings
Storage and maintenance: The fittings are packaged in a plastic cover holder and must remain packaged until use. This plastic cover can be used during installation to prevent contamination. Connections should be stored in a warehouse where the temperature should not exceed 50. C. Never expose the connections to direct sunlight. Electrophogenic alloys may contain a carbon black additive to protect against the effects of ultraviolet light, however improper storage can adversely affect the performance of the connections.
Before starting the installation process, always make sure that the connection is not physically damaged during maintenance. If it is necessary to evaluate the connections, it is recommended to perform a destructive test on the sample, which makes it possible to determine any surface damage.
The use of appropriate and specific tools is essential for the success of electrofusion tools welding. It is always advisable to check all welding equipment before starting welding. Make sure all equipment that needs to be calibrated is calibrated.
Equipment may vary somewhat depending on the product being welded or the diameter to be welded, but should include the following:
- Pipe preparation
- Pipe measuring devices (tape, meter, etc.)
- Pipe cutting equipment
- Pencil or pen to mark
- Scratching tool
- Cleaners, make sure the wipes are soaked in alcohol (not dry).
- Special wrenches
- Pipe holder
Purchasing high-quality electrofusion fittings
Pipe preparation is the basis of the electrophogenic process. Regardless of the connector manufacturer, the connections will not be fully functional if the preparation is not done properly according to the manufacturer’s instructions.
Pipe preparation includes a few simple and important steps, which are described below:
The end of the tube should be cut smoothly and evenly. Smooth pipe cutting is very important. Failure to cut the pipe properly may cause the thermal wire to remain uncovered. This can lead to short circuits, overheating, uncontrolled melting and even sudden combustion. You must remove any bumps or unevenness at the end of the pipe. Different pipe cutting tools Pipe rotary cutter Marking and scratching
In order to achieve proper welding, the oxidized surface of the pipe must first be separated. Mechanical peeling tools are strongly preferred because they prepare the surface of the pipe continuously. Manual scratching is less recommended due to the continuous removal of the layer tape, and on the other hand, it is a time-consuming and tedious process to fully prepare the end of the pipe, especially in larger diameter pipes. Clean the outer end of the tube with a tissue to remove any dirt that could damage the tool used.
Re-round the tube
electrofusion machine are designed to work on round pipes. Polyethylene pipes made of flexible materials are prone to dust for various reasons. These reasons may include the following:
Construction conditions will affect the roundness of the pipe. The pipe manufacturer is required to control this parameter, but must be approved by the pipeline on site.
Twist the pipe
An intricate tube that stays in the same position for a long time becomes oval due to the bending forces applied to it.