PROGEF 90 Degrees Bend SDR11 PN10 PP-H d20-d500 Butt Fusion

  Datasheet (PDF)

Georg Fischer PROGEF Standard 90 degrees bends (SDR11 / PN10) are spigot-end fittings for industrial piping networks and chemical process lines, built in compliance with EN ISO 15494. BigWeld, as an authorised Georg Fischer distributor, supplies the full range from d20 mm up to d500 mm for process plants, chemical dosing skids, water treatment and industrial cooling circuits that demand long-term hydrostatic endurance and reliable chemical resistance.

The raw material follows the diameter. Sizes from d20 to d315 mm are moulded in beta-nucleated isotactic polypropylene homopolymer (β-PP-H), combining high stiffness, improved impact strength at elevated temperatures and stable behaviour against acids, alkalis and industrial effluents. Sizes from d355 to d500 mm use high-molecular polypropylene random copolymer (PP-R) with a minimum required strength classification of MRS 10 MPa, holding dimensional stability across a wide thermal range and a 25-year design service life with water at 20 degrees Celsius.

The extended spigot ends are prepared for heated tool butt fusion to DVS 2207 welding guidelines or for non-contact infrared (IR) fusion, so the bend is welded directly into the pipe run without additional couplers and without elastomeric seals inside the pressure envelope. The smooth internal bore keeps head loss across the change of direction low, maintains undisturbed flow and prevents deposits, particulate accumulation and incrustation over long operating periods. Uniform wall geometry distributes stress evenly at working pressures up to 10 bar (PN10), suiting aggressive fluid conveyance, demineralised water lines, wastewater treatment and chemical distribution headers.

Key technical specifications:

• Fitting type: 90 degrees bend with extended spigots for butt fusion and IR welding
• Material: β-PP-H (d20–d315 mm), PP-R MRS 10 MPa (d355–d500 mm)
• Dimensional range: d20 to d500 mm, 22 sizes
• Pressure rating: PN10, SDR 11
• Standards: EN ISO 15494, welding per DVS 2207