Precautions for connecting electrofusion fittings: How to assess product quality?
Time:
2022-07-21 10:04
Electrofusion Fittings Simply put, it is a type of pipe fitting made from plastic tubing that is joined by heat generated through electric current. It can be used to connect small-diameter pipes or small bends. The exact shape of electrofusion fittings varies depending on the specific requirements of the customer. Designed with a vector-based structural system, these fittings feature plastic bearings, variable flexibility, reliable electric heating for welding, and precise socket positioning, making them suitable for connecting PE-RT and PE piping systems. Below, we will outline the key considerations for proper installation and methods for assessing product quality.
I. Connection Precautions
1. Installation should be carried out when the outdoor temperature is low. Because plastic pipes exhibit thermal expansion and cold contraction, their dimensions are at their minimum when the daily temperature is very low, making it much easier to connect electrofusion fittings under these conditions.
2. During connection, ensure that the pipe and its associated fittings, such as sleeves and seals, are clean and free of contaminants like dirt and water. If any dirt is present, wipe it off with a damp cloth before making the connection to prevent adverse effects on weld quality.
3. When electrofusion flange connections are required, live套 steel flanges, bolts, and other metallic components shall be subjected to corrosion protection in accordance with the local soil conditions and relevant national standards to prevent rusting and ensure service quality.
4. During connection, ensure that the inspection port of the fitting is positioned directly above or to the side of the fitting to facilitate observation during welding.
5. Connected successfully Electrofusion Fittings Marks should be made on both sides to prevent the fittings from coming loose or shifting during subsequent connections, thereby facilitating verification during welding that the electrofusion fitting is centered.
II. How to assess the quality of electrofusion fittings?
Like steel-reinforced plastic composite pipes, electrofusion fittings are manufactured from PE100-grade raw materials. As the connection component that joins plastic composite pipes to the steel mesh skeleton, electrofusion fittings are indispensable in practical applications; their quality directly determines the overall quality of pipeline installation. Below, we will provide a detailed overview of several key points.
1. Inspect the fittings: High-quality products should match the pipe in appearance, with a smooth surface and no bubbles. Inferior products are rough, with defects such as bubbles and pits, and the color of electrofusion fittings is uneven.
2. Measure the product’s length and wall thickness: High-quality products have a deep socket and thick walls, while low-quality products are short and thin.
3. Measurement Electrofusion Fittings Weight: The better the electric fusion fittings, the heavier they are; the inferior ones are the opposite.
4. During use, inspect electric fusion fittings for any pungent odor. High-quality electric fusion fittings shall comply with hygiene and safety standards and be completely odorless; inferior fittings, however, are often blended with recycled materials and emit a sharp, irritating smell.
5. Provide the sanitary license and approval documents for electrofusion fittings. Labels on high-quality electrofusion fittings shall indicate the certificate of conformity, manufacturer, model, welding parameters, and other relevant information. If such information is missing, the product is classified as a “three-no” product and is deemed to be substandard.
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On January 15, 2018, Zhejiang Qingfa Pipe Fittings Technology Co., Ltd. conducted a completion environmental protection acceptance monitoring in strict accordance with relevant national laws and regulations and the Technical Specifications for Completion Environmental Protection Acceptance of Construction Projects, based on the “Completion Environmental Protection Acceptance Monitoring Report for the Technological Transformation Project of Zhejiang Qingfa Pipe Fittings Technology Co., Ltd.’s Annual Production of 5 Million PE Pipe Fittings,” prepared by Zhejiang Hongbo Environmental Monitoring Co., Ltd.
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