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Special Type Valves:

Vacuum Breakers by FilterChem™

Prevents Back Siphonage of Chemicals and Toxic Liquids

  • Vacuum breakers are widely used to prevent unwanted back siphonage.
  • When flow stops, the disc automatically seats itself to prevent back siphonage in the vertical line. Opening the horizontal line to the atmosphere for drainage.
  • Viton O-Rings standard.
    EPDM - Optional

Normally Closed Standard
Part # Size Material
FC-VB-50 1/2" PVC
FC-VB-75 3/4" PVC
FC-VB-10 1" PVC
FC-VB-15 1-1/2" PVC
FC-VB-20 2" PVC
FC-VB-30 3" PVC
FC-PVB-50 1/2" POLYPRO1
FC-PVB-75 3/4" POLYPRO1
FC-PVB-10 1" POLYPRO1
FC-PVB-15 1-1/2" POLYPRO1
FC-PVB-20 2" POLYPRO1
FC-PVB-30 3" POLYPRO1
1Polypropylene

Dimensions
Size A Dia. B Dia. C Dia. D Dia.
1/2" 2.00 1.63 1.36 1.36
3/4" 2.50 1.78 1.48 1.48
1" 2.50 2.17 1.70 1.70
1-1/2" 3.50 2.84 2.48 2.48
2" 3.75 3.19 2.75 2.75
3" 4.75 4.00 3.50 3.50

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