SDR11 Electrofusion Elbow

SDR11 Electrofusion Elbow - 90 Degree Turning Fitting for HDPE Pipelines

Serving as a key turning accessory in HDPE pipeline systems, the SDR11 electrofusion 90 degree elbow is made for complex piping layouts. Its electric heating fusion mechanism allows rapid right-angle deflection, so construction stays flexible even in limited space.

Key Features

• Low flow resistance - the seamless, scale-resistant inner surface cuts fluid resistance by around 30 percent compared with traditional fittings, giving a significant reduction in pressure loss.
• Impact resilience and anti-sagging - performs well in sponge city projects, industrial fluid transfer and agricultural irrigation.
• Compatibility - can be joined directly to steel wire mesh composite pipes, which improves construction productivity and system reliability.
• Fast, temperature-independent fusion - once power is applied the heating wire instantly melts the fitting and the pipe outer wall into a seamless joint stronger than the pipe itself, removing the leakage risk of gasket connections.

45 Degree Variant

The HDPE electric fusion 45 degree elbow uses the same welding technology to achieve homogeneous integration with the pipe. The connection is fast and unaffected by ambient temperature, which makes it particularly suitable for water and gas transmission projects with complex geology, limited space and very high sealing requirements.

90 Degree Elbow Dimension Drawing

Specifications

• Material: HDPE (PE100 / PE80), SDR11
• Angles: 90 degree and 45 degree
• Fusion: electrofusion welding machine, embedded heating coil with barcode parameter entry
• Standards: GB/T 13663.3-2018 (referring to EN 12201-3 and ISO 4427-3), GB/T 15558.3-2023 (referring to EN 1555-3 and ISO 4437-3)
• Management systems: ISO 9001, ISO 14001, ISO 45001
• Product certifications: CE, KS and WRAS

Applications

Water and gas transmission where the layout is congested or the geology is difficult, sponge city projects, industrial fluid transfer and agricultural irrigation networks.

FAQ

Q: What are the key steps for installing an electrofusion elbow?
A: Prepare the pipe by cutting it squarely, scraping off the oxide layer and cleaning both the pipe and the inside of the fitting thoroughly. Insert the pipe into the elbow to the hard stop, align and clamp it firmly, then connect the welding machine and start the cycle by scanning the barcode or entering the parameters manually. Allow the joint to cool for the specified time before removing the clamps.

Q: How do I ensure the elbow is properly aligned before welding?
A: Use clamps or another suitable method to hold the fitting firmly in place throughout the welding process. That prevents movement or misalignment, which is what protects joint quality.

Quality Assurance

Qingfa operates a CNAS-accredited testing centre under 6S management with a professional QC team, and holds CE, KS and WRAS product certifications.

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