Definox DCX3 FdC Tank Bottom Shut Off Flow Control Valves

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Definox DCX3 FdC – Tank Bottom Single Sealing Shut Off Valves


Size Range: 1”, 1-1/2”, 2”, 2-1/2”, 3”, 4”


Body/Stem: 316L SS

Operator: 304 SS

Valve seals: PFA floating plug seal, FKM stem seal & body seal

Optional seals: EPDM, FKM, or Silicone plug seal, EPDM, FKM, or Silicone stem & body seal

Connections: OD tube butt weld, Sanitary clamp (45º outlet), Others upon request

Tank Connections: Special tank flange for welding

Options: Long stroke for improved solids handling

Signal Equipment: ICS Control top – valve sizes 1” – 3”, ACS Control top – valve sizes 4” – 6”, Network options: point-to-point & AS-i (others upon request)

Surface Finish: Ra Interior = 32Ra, Ra Exterior = 40-50Ra


  • Patented PFA floating plug seal that is easily cleaned during CIP and offers outstanding sealing at high temperatures and excellent chemical resistance.
  • Body & plug shape provide minimal fluid retention area.
  • Rising plug or lowering plug type depending on the application.
  • Heavy-duty stainless steel pneumatic actuator that is capable of function changes:  NO (Normally Open) – NC (Normally Closed) – DA (Double Acting).
  • Clamp-style operator connection (manual and automated) for easy inspection and maintenance.
  • Heavy wall machined spherical bodies guarantee excellent resistance to thermal expansion and contraction.
  • Body configurations: DCX3 FdC (L).

Service Conditions

Max. temperature: 284°F (depending on seal type)

Min. temperature:  23°F

Sealing Pressure: 101 psi

Max. working pressure: 87 psi

Actuator air supply: 80 psi Minimum / 116 psi Maximum

Vacuum resistance: 0.4 cm3/s

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