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  • Taco Cast Iron Flo Check - 221-6

    - 1-1/4 inch NPT

    Product ID • TAC221000000

  • $75.75
  • Quantity:
  • Free Shipping Eligible


Taco 221-6 Flo Check are used in forced hot water heating systems to prevent gravity circulation during periods when the boiler is hot, but the space heating zone is not wanted.

Taco Flo-Checks are also used in systems with multiple circulator zones to allow heat to flow only into the zones that are calling for heat. In addition, the thumb screw can be opened manually for gravity feed applications, if the main circulator stops operating.

Taco Flow Check 221-6 Cast Iron Threaded NPT, 1 1/4 Inches for universal Heating Applications.

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Technical Specs

Taco Cast Iron Flo check - Threaded - 1 1/4 inch - 221-6 Techs and Specs

  • Connection Type
    Threaded (NPT)
  • Size
    1 1/4 Inch
  • Material
    Cast Iron
  • Max PSI
    125 PSI
  • Install Position
  • Max Temperature
    277 Degrees F

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