PE100 Large Diameter Electrofusion Coupler | 4mm Manual Pin | SDR 17-26 | Water PN10 / Gas 6 Bar | DN450-630 | Pipe-to-Pipe Repair & Extension for Water Mains, Gas Networks, Sewerage & Mining Lines

The large diameter electrofusion coupler connects two PE pipes of the same size with a fully welded electrofusion joint — no gaskets, no mechanical clamps and no future maintenance. It is the workhorse fitting for pipe-to-pipe repair, extension and new construction on large-diameter water mains, gas networks, sewerage and mining pipelines from DN450 to DN630mm.

Designed for SDR 17-26 heavy-wall PE pipes with a 4mm manual pin, the coupler is compatible with a wide range of electrofusion welding machines — the operator reads the fusion parameters moulded on the fitting body and enters them manually.

Manufactured from virgin PE100 black polyethylene, rated water PN10 and gas 6 bar. Operating temperature range: -10°C to +40°C.

• Pipe-to-pipe repair of damaged large-diameter water mains
• Extending PE transmission and distribution lines in gas networks
• Joining heavy-wall PE pipes in sewerage and mining pipelines
• New pipeline construction in irrigation schemes and process water systems
• Replacement of metallic pipe sections in existing networks

• SDR 17-26 heavy-wall compatibility — built for thick-walled PE pipes
• DN450, DN500, DN560, DN630 — large diameters for transmission networks
• 4mm manual pin — wide electrofusion machine compatibility
• Fully welded joint — no gaskets, no clamps, no future maintenance
• Manufactured using virgin PE100 black polyethylene for long-term durability
• Water PN10 / Gas 6 Bar rating (dependent on PE pipe welded)
• Dual-shot capability on DN560/DN630 — two fusion cycles for complete joints
• Rising pin fusion indicators allow easy monitoring of the fusion process
• Manual welding parameters moulded into the fitting body
• Permanent batch number clearly marked for quality control
• Barcode and QR code enables full traceability back to raw materials
• Welding barcode compliant with ISO 13950; traceability barcode compliant with ISO 12176-4

Note: DS = dual shot — the fitting requires two electrofusion cycles to complete the joint. All stated technical specifications depend on the PE pipe welded to and local pipeline pressure regulations. Please contact us for detailed CAD drawings.

Our large diameter couplers are designed and manufactured to meet international product standards, backed by ISO 9001 and ISO 29001 quality management system certifications.

• EN 12201-3 — Plastics piping systems for water supply — Polyethylene (PE) — Part 3: Fittings
• EN 1555-3 — Plastics piping systems for the supply of gaseous fuels — Polyethylene (PE) — Part 3: Fittings

Note: Regional variations may apply. Other product certificates available upon request.

We export PE electrofusion fittings worldwide. Large diameter couplers are individually protected, cartoned and palletized for safe sea freight — oversize fittings are crated to prevent transit damage.

We stand behind the quality of our electrofusion fittings. Our commitment doesn't end at delivery — we provide comprehensive technical support for your PE pipeline project.

Common questions about our large diameter electrofusion coupler.