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FESTO-MFH-5-14-S

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January 08, 2026
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Brief: Get a guided demo that shows common workflows and troubleshooting tips for the FESTO LRLL-14-QS-10 Differential Pressure Regulator. In this video, you'll see how this compact pneumatic valve maintains a constant pressure difference between two points in your system, regardless of inlet pressure variations. We'll demonstrate the installation process, pressure adjustment using the screwdriver slot, and its application in pneumatic control systems and actuator speed control.
Related Product Features:
  • Maintains a constant differential pressure between two ports regardless of inlet pressure variations.
  • Features a 1/4" male thread port for standard G1/4 or R1/4 connection.
  • Includes QS-10 push-in connector for quick connection to 10mm OD tubing.
  • Direct-acting piston design ensures fast response and precise pressure control.
  • Suitable for continuous compressed air supply applications requiring uninterrupted flow.
  • Compact PBT-reinforced housing allows space-saving installation in pneumatic panels.
  • Manual pressure adjustment via screwdriver slot with 2-6 bar regulation range.
  • Wide operating range from 0.2 to 9 bar inlet pressure with return flow function.
FAQs:
  • What is the key difference between this differential pressure regulator and a standard pressure regulator?
    This FESTO LRLL-14-QS-10 maintains a constant pressure difference between its two ports, rather than providing a fixed outlet pressure like standard regulators.
  • What are the connection types available on this model?
    It features a mixed-port configuration with a 1/4" male thread on Port 1 and a QS-10 push-in connector for 10mm OD tubing on Port 2.
  • What is the flow capacity of this differential pressure regulator?
    It provides a nominal flow rate of 262 l/min when closed and 269 l/min when open, suitable for most standard pneumatic applications.
  • What is the pressure regulation range for this valve?
    The pressure regulation range is 2 to 6 bar, with an inlet pressure range of 0.2 to 9 bar and maximum proof pressure of 15 bar.
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