Flange adaptor PE100 SDR11 PN16, d20-d800 mm

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The ELGEF Plus PE100 flange adaptor from Georg Fischer (GF Piping Systems) is an engineered long-spigot stub end designed to terminate high-density polyethylene pressure piping in a fully demountable flanged joint. Manufactured for water networks up to 16 bar and gas distribution up to 10 bar, this SDR11 fitting provides industrial pipefitters and utility contractors with a robust, reliable transition to flanged valves, pumps, and metering stations.

Technical specifications

The ELGEF Plus SDR11 series delivers full pressure containment across d20 to d800 mm diameters with certified performance for critical municipal and industrial infrastructure. The long cylindrical spigot provides generous clamping and fusion zones compatible with both automated workshop prefabrication and confined trench environments.

• Nominal Pressure: 16 bar water / 10 bar gas (FM 1613 approved at PN15 for d90 to d500 mm)
• Dimensional Range: Outer diameters d20 to d800 mm with wall thicknesses from 1.9 mm to 74.0 mm
• Material Classification: Virgin PE100 high-density polyethylene resin
• SDR Rating: SDR 11 long-spigot execution
• Sealing Face: Combined serrated and flat jointing face (Type A without chamfer, Type B with chamfer)

Installation and jointing

Jointing on the pipeline side is executed via butt fusion, electrofusion couplers, or infrared welding in strict accordance with DVS 2207 standards. The long-spigot geometry guarantees sufficient straight length for electrofusion clamps and butt-welding machine jaws without compromising the sealing collar.

On the flanged interface, the adaptor accommodates backing flanges and seals across diverse media. Profile gaskets in EPDM, NBR, and FKM seal sizes d20 to d800, while flat gaskets are compatible from d20 to d315. The internal bore profile permits direct mounting of plastic butterfly valves up to DN300 (Types 567 and 578) and metallic butterfly valves up to DN250 (Types 038, 039, 044, and 065) without requiring bore clearance spacers.

Applications

This PE100 stub end is engineered for potable water distribution, industrial process loops, cooling lines, and gas utility mains requiring removable flanged equipment connections. As an authorised Georg Fischer distributor, BigWeld supplies the entire ELGEF Plus flange adaptor range for demanding civil engineering, plant construction, and irrigation projects.