FB6903 – Sanitary Check Valve

The FB6903 is needed when it is necessary to prevent the product from flowing in the wrong direction. The valve is kept open by the liquid flow in the correct direction. If the flow stops, the plug is forced against its seat by the spring. It will then close against reversal of the flow. This valve is used in many sanitary applications and is 3A approved under standard 58-01.


  • 3A Approval
  • Pressure ratings at room temperature: 140 psi


  • 1/2” – 4″

End Connections      

  • Sanitary Clamp Ends

Body Material

  • SS 316L