VIKING Fireking™ Concentric Reducer – Threaded (VK-CRT)

  • The VIKING Fireking™ VK-CRT Concentric Reducer – Threaded is designed to transition from grooved pipe to a smaller threaded outlet while maintaining concentric alignment. Available with NPT or BSP threads, it provides a compact and reliable solution for connecting valves, instruments, and auxiliary devices in fire-suppression systems.
  • Nominal Sizes:
    • NPT: 1-1/2" × 1" to 8" × 4"
    • BSP: DN40 × DN25 to DN200 × DN100
  • 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 × Threaded (NPT or BSP)
  • Finish: Painted (Red), Epoxy Coated (on request), Galvanized
  • Integrates grooved piping with threaded equipment without adapters
  • Reduces number of fittings and potential leak points
  • Saves installation time compared to fabricated transitions
  • High mechanical strength suitable for fire-protection duty
  • Multiple finish options improve corrosion resistance
  • Fire sprinkler systems requiring connection to threaded valves, gauges, drains, or auxiliary devices from a grooved main.
  • UL Listed
  • FM Approved
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