PROGEF PP-H 45 Degrees Bend SDR11 d355-d500

  Datasheet (PDF)

The Georg Fischer PROGEF Standard 45 degrees segment-welded bend SDR11 d355-d500 provides dependable directional changes for large-diameter industrial thermoplastic piping networks. Manufactured from polypropylene homopolymer (PP-H), this butt fusion fitting is engineered for industrial process lines, chemical distribution, and wastewater treatment systems. Operating at PN8 (8 bar at 20 degrees Celsius), it delivers high structural stability, superior chemical resistance, and long-term hydrostatic reliability. BigWeld supplies these certified industrial fittings across Europe with complete material traceability.

Technical specifications

The PROGEF SDR11 45 degrees bend is fabricated to deliver maximum mechanical integrity under continuous chemical and hydraulic service. Each fitting is constructed with precision segment welding from SDR11 pipe sections, applying a standard derating factor of 0.8 to yield an operating pressure of PN8 (8 bar) at 20 degrees Celsius.

• Material: Polypropylene homopolymer (PP-H)
• Dimensional range: Outer diameters d355 mm, d400 mm, d450 mm, and d500 mm
• Standard dimension ratio: SDR11
• Nominal working pressure: PN8 (8 bar) at 20 degrees Celsius
• Jointing method: Heated-tool butt fusion with extended spigot ends
• Manufacturing standards: EN ISO 15494, DVS 2207 welding guidelines

Materials and standards

Manufactured from high-grade isotactic polypropylene homopolymer, this segmented bend complies fully with the quality requirements of EN ISO 15494 and DVS 2207. The homogeneous thermoplastic formulation provides robust resistance to aggressive inorganic acids, alkalis, salts, and industrial effluents without stress cracking or internal scaling.

The smooth internal bore ensures optimal flow dynamics with minimal hydraulic friction, preventing sediment build-up and preserving energy efficiency over extended operation. Designed for a 25-year service life when carrying water at 20 degrees Celsius, the fitting retains excellent dimensional rigidity and high tensile strength across industrial temperature ranges.

Installation and jointing

Butt fusion jointing with heated tools ensures leak-tight, monolithic connections that integrate seamlessly into existing PROGEF SDR11 piping runs. Long spigot ends accommodate conventional site and workshop butt fusion machines, enabling straightforward alignment and reproducible weld beads in accordance with DVS 2207 parameters.

Installers can connect this 45 degrees segmented bend directly to SDR11 pipes, backing flanges with steel inserts, and PROGEF valves. Proper axial alignment, clean joining surfaces, and adherence to specified heating and cooling cycles guarantee permanent joint integrity in demanding industrial environments.