gr-qb-1/4-u

Product ID:9809
Updated: 2026/4/3
Festo gr-qb-1/4-u

Key Features

  • 1Ensure precise one-way airflow control. 2、Prevent system backflow and contamination. 3、Integrate easily with 1/4-inch pneumatic connections. 4、Adjust manually for versatile application use. 5、Rely on Festo's quality for automation systems.
Product Details
gr-qb-1/4-u
Festo

Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Valve function
Flow control non-return function
Pneumatic connection 1
QB-1/4
Pneumatic connection 2
QB-1/4
Actuation type
Manual
Adjusting element
Slotted screw
Type of mounting
Optionally: Line installation With through-hole
Standard nominal flow rate in flow control direction
597.46l/min
Standard nominal flow rate in non-return direction
635.593l/min 699.153l/min
Operating pressure
-0.951bar 7.998bar
Ambient temperature
0°C 60°C
Housing material
PBT-reinforced
Mounting position
Any
Symbol
00991453
Standard flow rate in flow control direction 6 -> 0 bar
991.5l/min
Standard flow rate in non-return direction at 6 -> 0 bar
1347.458l/min 1360.169l/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 zone III
Temperature of medium
0°C 60°C
Product weight
28.35g
Material of screwed plug
Brass Nickel-plated
Note on materials
RoHS-compliant
Seals material
NBR
Releasing ring material
POM
Knurled head material
Brass Nickel-plated
Material of adjusting screw
Brass Nickel-plated
Manufacturer ID
534682

Specifications may be subject to change without notice