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

534339

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

The Festo 534339 is an industrial component featuring a one-way flow control function with a QS-8 pneumatic connection 1 and a G1/4 pneumatic connection 2. Featuring a knurled screw adjusting element for screw-in mounting with an external thread, this component operates within an ambient and medium temperature range of -10 °C to 60 °C at an operating pressure of 0.2 bar to 10 bar. It delivers a standard nominal flow rate of 475 l/min in the flow control direction and 325 l/min to 500 l/min in the non-return direction, utilizing compressed air as per ISO 8573-1:2010 [7:4:4]. Submit your exact part number, quantity, and application requirements to request a quote for this Festo component.

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Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.

Manufacturer
Festo
Part number
534339
Data verification
Manufacturer evidence reviewed

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Exact part-number verificationTechnical properties are matched to 534339.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.

Verified configuration

Technical Specifications

Valve function
One-way ow control function
Pneumatic connection 1
QS-8
Pneumatic connection 2
G1/4
Adjusting element
Knurled screw
Type of mounting
Screw-in | With external thread
Standard nominal ow rate in ow control direction
475 l/min
Standard nominal ow rate in non-return direction
325 l/min...500 l/min
Operating pressure
0.2 bar...10 bar
Ambient temperature
-10 °C...60 °C
Maritime classication
See certicate
Mounting position
Any
Operating pressure for entire temperature range
0.2 bar...10 bar
Standard ow rate in ow control direction 6 -> 0 bar
720 l/min
Standard ow rate in non-return direction at 6 -> 0 bar
610 l/min...760 l/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 suitability, measured according to ISO 14644-14
Class 4 according to ISO 14644-1
Storage temperature
-10 °C...40 °C
Temperature of medium
-10 °C...60 °C
Nominal tightening torque
5 Nm
Product weight
50 g
Note on materials
RoHS compliant
Seals material
NBR
Hollow bolt material
Wrought aluminum alloy | Anodized

Engineering context

Identification and RFQ Guidance

Confirm the exact configuration

Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

What to include in your RFQ

Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.

Technical verification

Our sourcing response is prepared against Festo 534339. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.