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Groco IBVF Series Flanged Adapter

Groco IBVF Series Flanged Adapter

  • Ports: Bottom 1" NPS, Top 1" NPT
  • Material: Bronze
  • Allows Standard NPT In-line Valve to Be Used as a Seacock
  • Item #: 
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    Shipping Weight: 
    1.20 Lbs.
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    Status:    null In Stock

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    Click for an Installation Guide (PDF)

    Groco IBVF Series Flanged Adapters were developed to eliminate the common and dangerous problem of thread mismatch when NPT Inline valves are screwed directly to NPS-threaded thru-hulls.


    • Provides a safe and sturdy assembly when in-line valves are used as seacocks
    • Eliminates thread mismatch when in-line valves are screwed onto thru-hulls
    • Accepts standard NPS thru-hulls into the base and standard NPT in-line valves or other components on top
    • Prevents valve damage during engine or generator installation – the valve can be installed later
    • Makes future valve replacement a simple job (can even be done in the water when plugged from the outside)


    • Weight: 1.07 lbs
    • Dimensions (see diagram):
      • Ports: Bottom 1" NPS, Top 1" NPT
      • C: 2.18"
      • D: 3.38"
      • E: 5/16"

    Groco IBV Series Full Flow Inline Ball Valve
    Item #: 503590IBV1000
  • Thread Size: 1" Female NPT
  • Material: Bronze Body with Chrome Plated Solid Brass Ball
  • Stainless Steel Handle and Hardware
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