Control exhaust air flow with the Festo GRLA-1/8-QS-4-D one-way flow control valve, designed for pneumatic systems with a non-return function and easy adjustment.
Product Modelgrla-1/8-qs-4-d
Material Number193143
Product ID7759
Stock on Request
Last updated: 8/29/2026
Key Features
1
Efficient Flow ControlThe GRLA-1/8-QS-4-D valve ensures precise control over exhaust air flow, optimizing system performance and efficiency.
2
Non-Return FunctionThe valve’s non-return function prevents backflow, ensuring that air moves in one direction only, which is crucial for maintaining system integrity and preventing contamination.
3
Easy AdjustmentThe slotted adjusting element allows for simple and precise adjustment of the valve, making it easy to fine-tune the flow rate according to specific application requirements.
4
Pneumatic CompatibilityDesigned for pneumatic systems, the GRLA-1/8-QS-4-D valve integrates seamlessly with existing pneumatic infrastructure, enhancing system reliability and performance.
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-4
Pneumatic connection 2
G1/8
Adjusting element
Slotted screw
Type of mounting
Screw-in
Standard nominal flow rate in flow control direction
160l/min
5
High-Quality ConstructionBuilt with Festo’s renowned quality, the valve is durable and reliable, ensuring consistent performance over time and in various operating conditions.
Standard nominal flow rate in non-return direction
120l/min 190l/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
250l/min
Standard flow rate in non-return direction at 6 -> 0 bar
270l/min 300l/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
3Nm
Tolerance for nominal tightening torque
± 10%
Product weight
22g
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
193143
One-way Flow Control Valve GRLA-1/8-QS-4-D | Festo USA | INDSLT
