GRLA-1/4-QS-8-RS-D Festo 534339 One-way flow control valve

Technical Data

Valve functionFlow control non-return function
Pneumatic connection 1QS-8
Pneumatic connection 2G¼
Adjusting elementKnurled screw
Type of mountingScrew-in With external thread
Standard nominal flow rate in flow control direction475 l/min
Standard nominal flow rate in non-return direction325 l/min … 500 l/min
Operating pressure0.2 bar … 10 bar
Ambient temperature-10 °C … 60 °C
Maritime classificationSee certificate
Mounting positionAny
Symbol00991452
Operating pressure for entire temperature range0.2 bar … 10 bar
Standard flow rate in flow control direction 6 -> 0 bar720 l/min
Standard flow rate in non-return direction at 6 -> 0 bar610 l/min … 760 l/min
Operating mediumCompressed air as per ISO 8573-1:2010 [7:4:4]
Information on operating and pilot mediaOperation with oil lubrication possible (required for further use)
LABS (PWIS) conformityVDMA24364-B1/B2-L
Cleanroom classClass 4 according to ISO 14644-1
Storage temperature-10 °C … 40 °C
Temperature of medium-10 °C … 60 °C
Nominal tightening torque5 Nm
Product weight50 g
Note on materialsRoHS-compliant
Seals materialNBR
Hollow bolt materialWrought aluminum alloy Anodized
Releasing ring materialPOM
Knurled head materialWrought aluminum alloy Anodized
Material of adjusting screwHigh-alloy stainless steel
Swivel joint materialDie-cast zinc