PROGEF PP-H NPT adaptor nipple SDR11 PN10

  Datasheet (PDF)

The Georg Fischer PROGEF Standard NPT adaptor nipple is a transition fitting that connects metric polypropylene butt fusion pipework to threaded industrial equipment, valves and instrumentation. Manufactured from beta-nucleated polypropylene homopolymer (beta-PP-H), it combines a calibrated SDR11 spigot with a precision-machined male NPT taper thread, rated PN10 (10 bar at 20 degrees C) in spigot sizes d20 to d63 mm with threads from 1/2" to 2".

Technical specifications

The nipple forms a pressure-rated junction between metric butt fusion pipelines and imperial tapered female ports in industrial process systems. Bore geometry is kept constant through the transition, so flow characteristics remain uniform and dimensional compatibility with PROGEF Standard SDR11 networks is maintained.

• Nominal pressure: PN10 (10 bar at 20 degrees C) across all configurations
• Spigot diameters: d20 mm to d63 mm
• Thread sizes: male NPT (National Pipe Taper), 1/2" to 2"
• Standard dimension ratio: SDR11, matching PROGEF Standard PP-H pipe wall dimensions
• Connections: plain spigot end for thermal welding plus machined male NPT thread
• Design service life: 25 years with water at 20 degrees C

Materials and standards

The fitting is manufactured entirely from beta-nucleated polypropylene homopolymer (beta-PP-H) in compliance with EN ISO 15494 for thermoplastic pressure piping systems. Beta nucleation yields a fine, uniform crystalline structure that raises impact strength at low ambient temperatures compared with conventional polypropylene.

PROGEF Standard components are produced by GF Piping Systems for water, wastewater, effluent treatment and a wide range of chemical applications. The all-plastic transition removes the galvanic corrosion and stress cracking risks associated with metal adaptors in chemical distribution and water treatment duty.

Installation and jointing

The plain end is jointed to PROGEF Standard SDR11 pipe and fittings by butt fusion or infrared (IR) fusion on Georg Fischer fusion machines; wall dimensions match SDR11 process pipe, so no transition component is required.

The tapered male thread is made up into a female NPT port using a sealing material compatible with the conveyed medium, tightened without excessive torque on the thermoplastic thread. Pipework should be supported and aligned with KLIP-IT pipe clips or equivalent brackets so that no bending or torsional load is carried by the threaded joint, and so that thermal movement of the polypropylene line is accommodated.