PE/Brass Electrofusion Transition Coupler with Union SDR11

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The Georg Fischer ELGEF Plus PE/brass electrofusion transition coupler with union end provides a secure, demountable connection between polyethylene pipelines and threaded metallic systems. Designed for SDR11 utility and industrial networks, this fitting pairs a permanent electrofusion socket on the polyethylene side with a detachable brass female union thread. Engineered for professional installers, it offers a pressure-rated interface for municipal water distribution, natural gas networks, and industrial utility piping requiring serviceable valve and equipment connections.

Technical specifications

This transition fitting is engineered for high-integrity jointing in SDR11 piping systems, delivering reliable pressure containment across both liquid and gaseous media. It features standardized welding pins and integrated sealing elements to ensure verified performance under demanding utility conditions.

• Nominal pressure rating: 16 bar for water distribution and 10 bar for natural gas networks
• Standard dimension ratio: SDR11 compatibility for utility and industrial PE100 pipework
• Welding terminal interface: standard 4 mm pin connectors with dynamic fusion indicators
• Interface configuration: electrofusion socket to detachable female threaded brass union
• Traceability: embedded Track & Trace barcode for automated welding log acquisition
• Sealing mechanism: factory-supplied elastomeric flat gasket for demountable union tightness

Installation and jointing

Jointing is performed via standard electrofusion protocols using automated welding control boxes, followed by mechanical tightening of the brass union nut. The integrated pipe fixation mechanism immobilizes the pipe end during the welding and cooling phases, eliminating external clamping stress.

The threaded union connection enables swift mechanical decoupling of downstream equipment, valves, or meters without cutting into the polyethylene main. Electrofusion indicators provide clear visual confirmation of completed fusion cycles. Assembly requires proper pipe scraping, cleaning with approved solvents, and adherence to manufacturer cooling times prior to pressure testing or mechanical union torqueing.

Materials and standards

The coupler combines high-density virgin PE100 resin with corrosion-resistant brass to achieve an estimated operational lifespan of up to 100 years. All materials comply with stringent European hygiene and safety directives for gas and potable water conveying.

Manufactured in compliance with EN 12201-3 for potable water systems and EN 1555-3 for gas distribution networks, this transition coupler holds international approvals including DVGW, KIWA, and ACS. As an authorised Georg Fischer distributor, BigWeld supplies certified ELGEF Plus transition fittings to industrial contractors and utility network engineers across Europe.