Exhaust Air Flow Regulation
Restricts exhaust airflow to adjust pneumatic cylinder travel speed with free reverse non-return passage.
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Festo
Festo GRLA-M5-QS-6-D One-Way Flow Control Valve M5 Thread QS-6 Tube 0.2–10 Bar
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PRODUCT DOCUMENTATION
Product Information
Technical specifications, features, applications and purchasing information.
Technical Specifications
| Brand | Festo |
| Model Number | GRLA-M5-QS-6-D |
| Product Category | One-Way Flow Control Valve |
| Manufacturer Part No. | 193139 |
| Product Series | GRLA |
| Valve Function | Exhaust air one-way flow control |
| Port 2 Thread Connection | M5 Male Thread |
| Port 1 Tube Connection | QS-6 Push-in Fitting for 6mm Tubing |
| Adjustment Element | Slotted head screw |
| Mounting Type | Screw-in mounting, any mounting position |
| Operating Pressure Range | 0.2 bar to 10 bar |
| Standard Flow Rate (Control Direction 6→0 bar) | 185 l/min |
| Standard Flow Rate (Non-Return Direction 6→0 bar) | 145–170 l/min |
| Operating Medium | Compressed air ISO 8573-1:2010 [7:4:4] |
| Nominal Tightening Torque | 0.8 Nm (±10% tolerance) |
| Product Weight | 13 g |
| Seal Material | NBR |
| Adjusting Screw Material | Brass |
| Compliance | RoHS Compliant, VDMA24364-B1/B2-L LABS Conform |
Key Features
M5 Thread + QS-6 Push-In Port
M5 male screw-in thread paired with integrated QS-6 quick fitting for 6mm pneumatic tubing connections.
Slotted Screw Flow Adjustment
Slotted head brass screw enables precise manual tuning of exhaust flow volume on-site.
0.2–10 Bar Wide Pressure Range
Operates reliably across full industrial low to medium compressed air pressure spectrum.
360° Swivel Fitting Design
Rotatable zinc swivel joint allows flexible tubing routing without twisting the valve body.
Compact Lightweight 13g Unit
Miniature low-mass construction suitable for tight valve terminal and actuator mounting spaces.
Applications
- Double-acting pneumatic cylinder speed control
- Automation machine exhaust flow regulation
- Packaging equipment pneumatic actuator tuning
- Conveyor system air cylinder stroke adjustment
- Small compact valve terminal assemblies
- Robotics miniature pneumatic actuator control
- Assembly station pneumatic motion damping
- Light industrial compressed air control circuits
Purchase Information
We support online purchase of the Festo GRLA-M5-QS-6-D One-Way Flow Control Valve. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.
Frequently Asked Questions
What is Festo GRLA-M5-QS-6-D part 193139? It is a GRLA series exhaust one-way flow control valve with M5 male thread and QS-6 push-in tube port, manufacturer catalog number 193139.
What valve function does this unit provide?
This model implements exhaust air throttling with integrated non-return valve for unrestricted supply airflow in reverse direction.
What pneumatic connections are fitted?
Port 2 uses M5 male screw thread; Port 1 features QS-6 quick push-in connector for 6 mm outer diameter tubing.
What pressure range is supported during operation?
Valid working pressure spans 0.2 bar minimum up to 10 bar maximum across full temperature range.
How is exhaust flow volume adjusted on this valve?
A slotted brass head adjusting screw is used to manually increase or reduce the exhaust throttling gap.
What airflow rates can the valve handle at 6 bar supply?
Control direction flow reaches 185 l/min; non-return reverse direction delivers 145 to 170 l/min standard flow.
What ambient temperature limits apply for installation?
Permitted operating ambient temperature ranges from -10°C to +60°C for standard industrial environments.
Does the valve body support rotational tubing positioning?
Chromated die-cast zinc swivel joint enables full 360° rotation to route tubing without mechanical strain.
What tightening torque applies to the M5 thread mounting?
Nominal assembly torque is 0.8 Nm with an allowable tolerance of ±10% during installation.
What sealing material is used inside the valve?
Internal sealing components are manufactured from NBR elastomer for compressed air service compatibility.
What should be verified before ordering GRLA-M5-QS-6-D?
Confirm full catalog number 193139, M5 thread actuator port size, 6mm tube outer diameter, exhaust throttling requirement and system operating pressure limits prior to purchase.
What compressed air quality standard is required?
System air must comply with ISO 8573-1:2010 purity class [7:4:4] for consistent valve performance.
Need help confirming a model?
Send us your part number and technical requirements.
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