Reducer PE100 SDR11 PN16

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The ELGEF Plus PE100 SDR11 concentric spigot reducer manufactured by Georg Fischer (GF Piping Systems) provides a dependable diameter reduction for butt-welded and electrofusion polyethylene piping systems. Engineered for industrial, municipal, and utility installations, this injection-moulded component ensures seamless fluid transition with minimal head loss. Rated at PN16 for water and PN10 for gas distribution, it delivers exceptional structural integrity in demanding pressure networks across Europe.

Technical specifications

The ELGEF Plus SDR11 reducer is manufactured from virgin high-density PE100 polymer, ensuring robust chemical resistance and long-term hydrostatic strength. The injection-moulded design maintains uniform wall thickness and concentric alignment across the entire dimensional transition.

• Material: PE100 high-density polyethylene
• Dimensional standard: SDR 11 series with wall thickness from 3.0 mm to 57.3 mm
• Pressure rating: PN16 for water service and PN10 for combustible gas
• Certification: FM 1613 approved at 15 bar for selected sizes between d110 and d315 mm
• Joint compatibility: Extended spigot ends suitable for electrofusion couplers and butt fusion

Applications

This concentric reducer is designed for utility and industrial fluid distribution lines requiring fully welded polyethylene construction. It prevents mechanical stress concentrations while stepping down pipeline diameters in buried or exposed layouts.

Typical installations include municipal potable water supply, high-efficiency agricultural irrigation mains, low-to-medium pressure natural gas networks, and industrial process piping handling corrosive or abrasive media. The smooth internal bore prevents sediment buildup and minimizes flow turbulence across velocity transitions. Selected diameters carrying FM 1613 certification are suitable for underground fire protection mains where third-party industrial safety approval is specified.

Installation and jointing

The elongated spigot geometry provides ample insertion depth for electrofusion couplers and sufficient clamping area for standard butt fusion welding equipment. This eliminates the need for welding extra pipe stubs during site assembly or spool prefabrication.

Installers can join the reducer using ELGEF Plus electrofusion couplers or conventional butt fusion machines adhering to standard DVS heating and cooling cycles. The long spigot ends guarantee adequate clearance for alignment clamps, scraping tools, and heating elements. BigWeld is an authorised Georg Fischer distributor and supplies the complete ELGEF Plus SDR11 range, including matching elbows, tees, and electrofusion fittings.