VIKING Fireking™ Concentric Reducer – Grooved (VK-CRG)

  • The VIKING Fireking™ VK-CRG Grooved Concentric Reducer is designed to provide a centered, gradual transition between different pipe sizes while maintaining system alignment and hydraulic performance. Manufactured from high-strength ductile cast iron, it is pressure-rated and approved for use in water-based fire-suppression systems.
  • Nominal Sizes:
    • 1-1/4" × 1" up to 12" × 10"
    • DN32 × DN25 up to DN300 × DN250
  • Working Pressure: 16 bar (232 psi) up to 34.5 bar (500 psi), depending on size and approval
  • Material: Ductile Cast Iron, ASTM A536 Grade 65-45-12
  • Connection Type: Grooved × Grooved
  • Finish: Painted (Red), Epoxy Coated (on request), Galvanized
  • Maintains pipe centerline alignment, reducing system stress
  • Smooth internal profile minimizes pressure loss and turbulence
  • Eliminates welded or fabricated reducers
  • Faster installation with grooved mechanical joints
  • High pressure capability suitable for main fire lines
  • Fire sprinkler mains, risers, and distribution piping where a concentric reduction is required without offset, particularly in vertical installations.
  • UL Listed
  • FM Approved
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