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VFSC3/8

VFSC3/8
VFSC3/8

VFSC3/8 Self-Closing Vacuum Valve

The VFSC3/8 automatically isolates a suction cup that is open to atmosphere or fails to seal against the product.

By closing the high-leak path, the valve helps the remaining engaged suction cups maintain vacuum, which is especially useful on grippers where product size or position changes from cycle to cycle.

Self-ClosingAutomatic Leakage Isolation
3/8Model Connection Size
Zero Leak PathInactive Cup Isolation
Vacuum EfficiencySupports Smaller Sources

Technical Specifications

SpecificationDetails
Part NumberVFSC3/8
Product TypeSelf-closing vacuum valve
FunctionCloses automatically when an attached cup is unsealed
System BenefitReduces leakage and helps maintain common vacuum level
Typical UseMulti-cup grippers including Squid-style tooling
HTS Code7609.00.0000

Automatic Isolation of Unsealed Cups

When a cup is uncovered, the incoming air creates the flow condition that causes the valve to close. The common vacuum source is then protected from that open leak path.

Open CupHigh airflow triggers closure
Sealed CupVacuum remains available
Common ManifoldProtects shared vacuum
Flexible ToolingHandles changing product coverage

Typical Applications

  • Vacuum grippers handling variable product sizes
  • Palletizing and depalletizing
  • Sheet and panel handling
  • Multi-cup EOAT with partial product coverage
  • Systems designed to minimize vacuum leakage

Frequently Asked Questions

What happens if a suction cup does not touch the product?

The high airflow through the uncovered cup causes the self-closing valve to isolate that cup from the common vacuum source.

Why is this useful on multi-cup tooling?

It prevents one or more uncovered cups from consuming all available vacuum flow and weakening the cups that are actually sealed.

Can this reduce required vacuum-source size?

By limiting leakage from inactive cups, the system may be able to operate with a smaller generator, blower or pump, depending on the application.

Does every cup need one?

They are typically installed where individual cup isolation is desired. Final quantity and arrangement depend on the gripper design.





Link to Pneuforce Data Sheets

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List Price $30.81 each
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