Festo VZXF Series Angle Seat Valve

Ideal for applications requiring open-loop control of media flows, whether gaseous, liquid, or highly viscous.

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Highlights...

Features

  • Stainless steel and gunmetal process valves with stainless steel, brass, or aluminum actuators
  • Different actuator sizes and housing materials
  • Selection of different seat and shaft seals
  • Supports viscosity up to 600mm2/s
  • Controls suitable gaseous and liquid media in rigid piping systems without need for any pressure differential
  • No differential pressure required between input and output
  • Low flow resistance
  • Insensitive to vapor or slightly contaminated media
  • NC function ensures the valve is closed in the event of pressure loss in the control circuit
  • Choice of closing in the direction of media flow (for gaseous media) or against the direction of media flow (for liquid media)

The Festo VZXF Series Angle Seat Valve is an externally controlled valve, directly actuated using compressed air supply. In this process, the seat of the process valve is raised by a pneumatic actuator. In the normal position, the valve is closed by a spring. When the actuator is supplied with operating pressure, it raises the control piston as well as the valve disc, and the valve opens. The valve seat is slanted at an angle of approximately 50° in relation to the media flow. The flow direction is determined by the design of the valve. Angle seat valves are used in applications in which absolute purity of the medium cannot be ensured, in which high-viscosity media are to be controlled, or in vapor applications.