Malleable iron reducing socket

  Datasheet (PDF)

Georg Fischer malleable iron reducing socket 246 provides a reliable, heavy-duty axial reduction between two differing nominal pipe diameters in threaded piping networks. Manufactured from premium whiteheart decarburised annealed malleable cast iron in full compliance with ISO 49 and EN 10242 design symbol A, the fitting exhibits high structural integrity, ductile toughness, and superior mechanical shock absorption. Both connection ports feature parallel internal jointing threads (Rp) conforming to EN 10226-1 and ISO 7-1, precision-machined to ensure uniform contact stress along the thread flanks when mated with external taper threads (R). Surface protection is delivered through high-grade hot-dip galvanisation, producing a metallurgically bonded iron-zinc alloy layer that imparts comprehensive barrier defense against corrosive agents, moisture ingress, and atmospheric oxidation. The robust cylindrical body geometry incorporates a reinforced transition shoulder and beaded end geometry designed to withstand significant torsional tightening loads, bending moments, and fluctuating thermal stresses without circumferential distortion. Rated for continuous operating pressures up to 25 bar within a temperature range spanning from -20 degrees Celsius to 120 degrees Celsius, and up to 20 bar at elevated temperatures up to 300 degrees Celsius, this reducing socket maintains tight, leak-free sealing in cooling circuits, compressed air lines, heating systems, non-potable process loops, and combustible gas infrastructure. By ensuring exact thread axial alignment and full compatibility with standard thread sealants such as PTFE sealing tape or anaerobic sealing compounds, the fitting delivers long-term operational dependability, low flow disturbance across the concentric reduction zone, and high resistance to cyclic mechanical fatigue across industrial piping installations.