Festo GRLA-M5-QS-6-D 193139 One-way Flow Control Valve M5 to 6mm

Festo GRLA-M5-QS-6-D (193139) is a one‑way flow control valve for exhaust air metering (meter‑out) with integrated non‑return function. M5 male thread on one side, QS‑6 push‑in connector for 6 mm OD tubing on the other. Slotted head screw adjustment. Ideal for precise cylinder speed regulation and smooth actuator motion in compact pneumatic systems.

Applications:

• Pneumatic cylinder piston speed regulation (meter‑out, exhaust air)

• Flow control in small factory automation and assembly systems

• Pick‑and‑place and packaging machinery

• Gripper position control and OEM equipment

Core Specifications:

• Valve function: Exhaust air one‑way flow control with non‑return

• Pneumatic connection, port 1: QS‑6 (push‑in fitting for 6 mm OD tubing)

• Pneumatic connection, port 2: M5 male thread

• Adjustment component: Slotted head screw

• Standard nominal flow rate (flow control direction): 115 l/min at 6 bar

• Standard nominal flow rate (non‑return direction): 70 – 110 l/min at 6 bar

• Operating pressure range: 0.2 … 10 bar

• Ambient / media temperature: –10 °C … +60 °C

Advanced Specifications:

• Design: Die‑cast zinc swivel connection, brass adjusting screw, nickel‑plated brass threaded plug

• Seal material: NBR

• Release ring material: POM (blue)

• Tube retaining claw material: High‑alloy stainless steel

• Operating medium: Compressed air to ISO 8573‑1:2010 [7:4:4] (lubricated possible; continued lubrication required if applied)

• Mounting type: Screw‑in, 360° swivellable after installation

• Nominal tightening torque: 3 Nm (± 10 %)

• Product weight: 13 g

• Logistics dimensions (incl. packaging): 90 × 100 × 10 mm

• Housing material: Die‑cast zinc

• Corrosion resistance class (CRC): 2 – moderate corrosion stress

• LABS (PWIS) conformity: VDMA24364‑B1/B2‑L

• RoHS compliant

System Integration:

• Compatible with Festo 6 mm OD pneumatic tubing (PUN, PAN, PEN series).

• For stable cylinder motion, install in the exhaust air circuit (meter‑out).

• 360° swivellable after threading for flexible tube orientation in confined spaces.

Standards & Compliance:
Refer to manufacturer official documentation for detailed certification and compliance information.

Related Products:

• GRLA‑1/8‑QS‑6‑D (193144) – G1/8 thread, 185 l/min flow rate

• GRLA‑M5‑QS‑6‑RS‑D – Same valve with rotary knob adjustment (detent)

• GRLA‑1/4‑QS‑6‑D (193146) – G1/4 thread, higher flow rate

• GRLZ‑M5‑QS‑6‑D – Supply air flow control version (meter‑in)