Festo VZQA Series Pinch Valve

Available with normally-closed or normally-open valve function.

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Highlights...

Features

  • Clean design housing
  • Elastomer shut-off element
  • 6 to 50mm nominal diameter
  • Pneumatically actuated pinch valve design
  • Soft sealing principle
  • Any mounting position
  • 2/2-way, closed, monostable valve function
  • Reversible flow direction
  • Mechanical spring reset method
  • Externally piloted control type
  • In-line mounting installation

The Festo VZQA Series Pinch Valve is a 2/2-way valve used to control liquid and powdery media, solids, and mixtures of substances. The valve includes a tubular pinch sleeve made of elastomer. The free passage when the valve is open ensures minimum flow resistance and prevents the valve becoming blocked or clogged. The valve can be used in the "normally closed" or "normally open" position.

Normally Closed

In the normal position, the pinch valve is closed. The pinch valve sleeve opens when the valve is pressurized, releasing the material flow. When pressure is no longer applied, a spring closes the valve. The valve can be used to shut off liquid and gaseous media. 

Normally Open

In the normal position, the pinch valve is open. The pinch valve sleeve closes when the valve is pressurized, shutting off the material flow. When pressure is no longer applied, the valve opens due to the inherent stress of the pinch valve sleeve or the pressure of the flow medium. The valve can be used to shut off liquid and powdery media, solids (granules) as well as mixtures of substances.