Definox DCX3 – DCX4 Fractional Shut Off And Divert Flow Control Valves

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DCX3 – DCX4 Fractional Single Sealing Shut Off and Single Sealing Divert Valves

Size Range: 1/2”, 3/4”, 1


Body: 316L SS

Stem: PFA

Optional stem: 316L SS

Operator: 304 SS (actuator) Thermoplastic (manual)

Valve seals: PFA stem/plug, FKM stem/body seal

Optional seals: EPDM, FKM, or Silicone, Isolast plug seal (316L stem type only), EPDM, FKM, or Silicone, Isolast stem/body seal

Connections: OD tube butt weld, Sanitary clamp, Others upon request

Signal Equipment: ICS Control top – valve sizes 1/2” – 1”, Network options: point-to-point & AS-i (others upon request)

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


Manufactured by:Definox logo


  • PFA stem/plug seal that is easily cleaned during CIP and offers outstanding sealing at high temperatures and excellent chemical resistance.
  • 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.
  • Wide variety of body configurations: DCX3 (L) – (T) – (X) / DCX4 (L/L) – (L/T) – (T/L).

Tech Specs

Service Conditions

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

Min. temperature:  23°F

Max. working pressure: 261 psi

Actuator air supply: 80 psi Minimum / 116 psi Maximum

Vacuum resistance: 0.4 cm3/s

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