Malleable iron reducing nipple

  Datasheet (PDF)

The Georg Fischer reducing hexagon nipple 245 is a threaded fitting engineered from high-grade whiteheart malleable cast iron in full compliance with EN 10242 and ISO 49 Design Symbol A standards. Designed to provide rigid, concentric dimensional transitions between pipe runs and components of differing diameters across nominal sizes from 1/4 inch to 4 inches, the fitting features dual male taper pipe threads (R) manufactured in accordance with EN 10226-1 and ISO 7-1. Thread geometry utilizes a standardized 1:16 taper ratio that establishes pressure-tight metallic compression against mating internal parallel (Rp) or taper threads, with sealing compound filling microscopic profile tolerances to guarantee leak-free containment across high-demand distribution networks. Surface protection is provided by a high-purity hot-dip galvanised zinc coating that forms a metallurgical iron-zinc alloy layer topped with pure zinc, ensuring exceptional corrosion resistance, longevity, and hygiene in potable water, cooling, compressed air, and non-aggressive fluid systems. The central integrated hexagonal body provides generous wrench flats (dimension s) for accurate torque transmission and rapid mechanical assembly using standard open-ended or adjustable tools without marring the pipe threads. Rated for continuous industrial operation, the component maintains an operating pressure capability of up to 25 bar at working temperatures between -20 degrees and 120 degrees Celsius, retaining safe mechanical containment up to 20 bar at elevated temperatures of 300 degrees Celsius. Its robust cast geometry absorbs tensile, compressive, and vibrational pipeline stresses, making the Georg Fischer reducing hexagon nipple 245 an essential jointing solution for durable industrial plants, commercial building services, and heating circuits.