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FESTO-LFR-D-MAXI

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January 08, 2026
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Brief: In this dynamic video, we showcase the FESTO HE-3-14-QS-8 Shut-off Valve in action. You'll see a lively demonstration of its 3/2 bistable manual operation, highlighting how to quickly integrate its mixed 1/4" thread and QS-8 push-in ports for reliable pneumatic system isolation and control.
Related Product Features:
  • 3/2-way valve function with three ports and two positions for normally closed or normally open operation.
  • Bistable operation maintains its position without requiring continuous manual input.
  • Manual actuation via push-pull or lever operation for straightforward control.
  • Mixed port configuration with 1/4" male thread and QS-8 push-in connector for flexible installation.
  • Compact design enables space-saving installation in pneumatic panels and systems.
  • High flow capacity of 423.9 l/min supports efficient pneumatic operations.
  • Wide operating pressure range from 0.2 to 10 bar for versatile industrial applications.
  • Robust construction with reinforced PBT housing ensures durability in industrial environments.
FAQs:
  • What is the valve function of the FESTO HE-3-14-QS-8?
    The FESTO HE-3-14-QS-8 is a 3/2-way bistable manual shut-off valve, featuring three ports and two positions for normally closed or normally open operation.
  • What are the connection types for the ports on this valve?
    Port 1 has a 1/4" male thread connection, while Port 2 uses a QS-8 push-in connector for 8mm OD tubing, providing a mixed-port configuration for flexible system integration.
  • What is the operating pressure range for the HE-3-14-QS-8 valve?
    The valve operates within a pressure range of 0.2 to 10 bar, with a proof pressure of 15 bar, making it suitable for a wide variety of pneumatic control applications.
  • How is the FESTO HE-3-14-QS-8 valve actuated?
    It is manually actuated through push-pull or lever operation, allowing for direct control and maintaining its position without continuous input due to its bistable design.
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