gr-qb-1/2-u

Product ID:9812
Updated: 2026/4/3
Festo gr-qb-1/2-u

Key Features

  • 1Ensure precise pneumatic control with the Festo GR-QB-1/2-U one-way flow control valve. 2、Adjust flow easily using the manual slotted head screw actuator. 3、Operate reliably across a 14 to 116 PSI pressure range with various media. 4、Minimize system leakage and downtime with robust, high-quality construction. 5、Integrate seamlessly into industrial systems as part of the proven Festo GR series.
Product Details
gr-qb-1/2-u
Festo

Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Valve function
Flow control non-return function
Pneumatic connection 1
QB-1/2
Pneumatic connection 2
QB-1/2
Actuation type
Manual
Adjusting element
Slotted screw
Type of mounting
Optionally: Line installation With through-hole
Standard nominal flow rate in flow control direction
1779.66l/min
Standard nominal flow rate in non-return direction
1372.881l/min 1614.407l/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
2949.2l/min
Standard flow rate in non-return direction at 6 -> 0 bar
2110.169l/min 2567.797l/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
119.07g
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
534685

Specifications may be subject to change without notice