Elbow 90 degrees PP-H PROGEF SDR11 PN10 d20-63

  Datasheet (PDF)

The Georg Fischer PROGEF Standard 90 degrees elbow is a spigot fitting for changing flow direction in industrial thermoplastic pressure piping. It is moulded from isotactic beta-polypropylene homopolymer (beta-PP-H, MRS 10 MPa) in SDR11 for a nominal pressure of PN10 (10 bar), in outside diameters from d20 to d63 mm, and complies with EN ISO 15494 and DIN 8077/8078. Typical duties are industrial chemical distribution, water and effluent treatment plants and process cooling loops.

The thermo-stabilised resin has a fine, homogeneous crystalline structure that gives beta-PP-H high impact strength at low temperatures together with broad chemical resistance to corrosive media, acids, alkalis and industrial effluents. Compared with standard polypropylene grades, this morphology improves resistance to environmental stress cracking and to creep under sustained internal pressure. The fitting is dimensioned for a 25-year service life with water at 20 degrees Celsius.

The calibrated long spigots suit conventional butt fusion to DVS 2207 as well as contactless infrared (IR) fusion. Uniform wall thickness and tight geometric tolerances produce an even melt flow and a repeatable weld bead, limiting internal stress concentration and preserving the hydraulic section without additional pressure loss. IR fusion adds reproducibility, traceability and a minimal internal bead for high-purity service.

As an authorised Georg Fischer distributor, BigWeld supplies the complete PROGEF Standard range alongside this elbow: pipes in SDR 7.4, SDR 11 and SDR 17.6, socket and butt fusion fittings, ball, diaphragm, butterfly and check valves, PP-GF30 backing flanges, KLIP-IT pipe supports, fusion machines and measurement and control instrumentation. Every fitting is delivered with full material traceability.