The Festo GRLA-1/4-QS-8-D one-way flow control valve is designed for pneumatic systems, offering non-return function and precise control with a slotted adjusting element.
Product Modelgrla-1/4-qs-8-d
Material Number193147
Product ID7763
Stock on Request
Last updated: 8/29/2026
Key Features
1
Non-Return FunctionThe GRLA-1/4-QS-8-D valve ensures that air flows in one direction only, preventing backflow and maintaining system efficiency.
2
Pneumatic ConnectionThe valve is connected via 1QS-8 and G¼ pneumatic connections, making it versatile for various pneumatic system configurations.
3
Adjusting ElementThe slotted adjusting element allows for precise control over the airflow, ensuring optimal performance in your pneumatic applications.
4
High-Quality ConstructionFesto's reputation for quality is evident in the robust design and reliable operation of the GRLA-1/4-QS-8-D valve.
5
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Valve function
Exhaust air flow control non-return function
Pneumatic connection 1
QS-8
Pneumatic connection 2
G1/4
Adjusting element
Slotted screw
Type of mounting
Screw-in
Standard nominal flow rate in flow control direction
475l/min
Easy IntegrationDesigned for seamless integration into your existing pneumatic systems, the GRLA-1/4-QS-8-D valve simplifies your automation tasks and enhances productivity.
Standard nominal flow rate in non-return direction
325l/min 500l/min
Ambient temperature
-10°C 60°C
Maritime classification
See certificate
Mounting position
Any
Symbol
00991452
Operating pressure for entire temperature range
0.2bar 10bar
Standard flow rate in flow control direction 6 -> 0 bar
720l/min
Standard flow rate in non-return direction at 6 -> 0 bar
610l/min 760l/min
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Information on operating and pilot media
Operation with oil lubrication possible (required for further use)
LABS (PWIS) conformity
VDMA24364-B1/B2-L
Cleanroom class
Class 4 according to ISO 14644-1
Temperature of medium
-10°C 60°C
Nominal tightening torque
5Nm
Tolerance for nominal tightening torque
± 10%
Product weight
42g
Material of screwed plug
Wrought aluminum alloy
Note on materials
RoHS-compliant
Seals material
NBR
Releasing ring material
POM
Material of adjusting screw
Brass
Swivel joint material
Die-cast zinc Chromated
Manufacturer ID
193147
One-way Flow Control Valve GRLA-1/4-QS-8-D by Festo | INDSLT
