Festo GRLA One Way Female Flow Control Valve

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With the one-way flow control valve GRLA or GRLZ, the flow control function works in one direction only (exhaust air or supply air); the non-return function works in the opposite direction.

Features and Benefits

  • This range by FESTO includes valves with one-way flow control function for exhaust air. The one-way flow control valve regulates the piston speed of pneumatic drivers during advance and return strokes
  • The QS push-in fittings and captive seals paired with the robust, metal design enables a reliable and efficient installation that can be rotated or swivelled through a 360° axis
  • Simple and fast mounting with QS fittings
  • The valves are operated with a knurled screw (slot)
  • Wide operating temperatures
  • Threaded and tube connection type options can be found within the GRLA series
  • Depending on the choice of valve from the series a precise setting can be obtained, which range from slow, medium or fast piston movements


Port size: M5, 1/8″, 1/4″, 3/8″, 1/2″

Tubing size: 3, 4, 6, 8, 10, 12mm


M5, 1/8", 1/4", 3/8", 1/2", 3/4"