PROGEF 90 Degrees Reduced Tee PP-H Butt Fusion SDR17.6 PN6

  Datasheet (PDF)

The Georg Fischer PROGEF Standard 90 degrees reduced tee in SDR17.6 PN6 is an injection-moulded thermoplastic fitting engineered specifically for branching process piping systems with reduced diameter take-offs. Manufactured from high-grade beta-nucleated polypropylene homopolymer (beta-PP-H), this component provides exceptional chemical resistance and thermal endurance for plant engineers and industrial pipework contractors handling corrosive media, industrial effluents, and process water up to 6 bar operating pressure.

Technical specifications

This reduced tee is dimensioned to SDR17.6 geometry with a nominal pressure rating of PN6 (6 bar at 20 degrees Celsius) and features a continuous 25-year service life under standard hydrostatic conditions. The smoothly contoured 90 degrees branch transition ensures optimal hydraulic performance while maintaining full structural wall integrity throughout the reducing junction.

• Material grade: Polypropylene homopolymer (beta-PP-H) with MRS 10 MPa classification
• Dimensional standard: Geometry and wall thickness in compliance with EN ISO 15494
• Pressure classification: Nominal rating of PN6 (6 bar water at 20 degrees Celsius)
• SDR ratio: SDR17.6 for high hydraulic throughput and reduced flow resistance
• Jointing compatibility: Heated tool butt fusion and contact-free infrared (IR) fusion

Materials and standards

Fabricated from virgin beta-PP-H compound in strict accordance with EN ISO 15494, this fitting delivers elevated stiffness and superior long-term hydrostatic strength compared to conventional polypropylenes. The material formulation resists chemical degradation from acids, alkalis, inorganic salts, and solvent solutions across an extended industrial operating temperature range.

Components are manufactured by Georg Fischer to exacting dimensional tolerances and quality control procedures, ensuring consistent wall thickness, high impact resistance, and dependable performance across chemical processing, water treatment, and industrial effluent installations.

Installation and jointing

Jointing is performed using heated tool butt fusion or automated infrared (IR) welding methods in accordance with DVS 2207 processing parameters. The long spigot ends accommodate standard butt fusion machine clamps without inducing residual stress on the fitting body or branch transition.

Contact-free infrared welding yields exceptionally uniform internal and external weld beads, eliminating internal crevices and preventing particulate entrapment or localized flow turbulence. As an authorised Georg Fischer distributor, BigWeld supplies the complete PROGEF piping portfolio across Europe, including matching SDR17.6 pipes, backing flanges, and welding equipment for certified industrial installations.