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Ductile Iron Couplings

Overview:

Our ductile iron couplings provide a fast, reliable, and leak‑tight method of joining plain‑end ductile iron, steel, PVC, and HDPE pipes. We supply two design options: single‑range and wide‑range versions. Manufactured to ISO 2531 / EN 545 / EN 598, the coupling body is cast from high‑grade ductile iron, with EPDM rubber seals per EN 681‑1 for a secure, flexible joint.
The single‑range variant is engineered for a narrow, defined pipe outside‑diameter band for standard applications. The wide‑range design accommodates a broad scope of pipe outside diameters within each nominal size, making installation simple even where pipe OD varies. Couplings are ideal for repairs, pipe extension, and connecting pipes of different materials, delivering a flexible yet restrained connection that absorbs minor angular deflection without leakage.


Key Features:
  • Two design options available: Single‑Range for fixed OD band; Wide‑Range for larger outer‑diameter tolerance coverage to fit varied pipe sizes
  • Superior Material − Ductile iron body (GGG50) per ISO 2531 / EN 545 / EN 598 for strength and durability.
  • Reliable Sealing − EPDM rubber gaskets per EN 681‑1 ensure leak‑tight, flexible joints.
  • Multi‑Material Compatibility − Joins DI, steel, PVC, and HDPE plain‑end pipes.
  • Angular Flexibility − Accommodates minor pipe deflection and misalignment.
  • Corrosion Protection − 250 μm fusion‑bonded epoxy coating, approved for potable water.
  • 100% Hydrostatically Tested − Pressure‑tested before shipment for guaranteed performance.
  • Fast, Easy Installation − No welding or special tools required; ideal for repairs and emergency work.