564846

Name: Festo 564846 One-way flow control valve GRLA-1/2-QB-3/8-U
Brand: Festo

One-way flow control valve GRLA-1/2-QB-3/8-U

The Festo 564846 is an industrial pneumatic component featuring an exhaust air flow control non-return function with manual actuation via a slotted screw. This screw-in component utilizes a QB-3/8 pneumatic connection 1 and a 1/2 NPT pneumatic connection 2, paired with a nickel-plated brass screwed plug weighing 3.85 oz. It delivers a standard nominal flow rate of 188 cfm in the flow control direction and 145 cfm to 192 cfm in the non-return direction, operating within a temperature range of 32 °F to 140 °F and pressures from -13.8 psi to 116 psi using compressed air per ISO 8573-1:2010 [7:4:4]. Submit the exact part number, quantity, and application requirements to receive a formal quotation.

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Manufacturer: Festo
Part number: 564846
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Technical Specifications

Valve function: Exhaust air ow control non-return function
Pneumatic connection 1: QB-3/8
Pneumatic connection 2: 1/2 NPT
Actuation type: Manual
Adjusting element: Slotted screw
Type of mounting: Screw-in | With external thread
Standard nominal ow rate in ow control direction: 188 cfm
Standard nominal ow rate in non-return direction: 145 cfm...192 cfm
Ambient temperature: 32 °F...140 °F
Mounting position: Any
Operating pressure for entire temperature range: -13.8 psi...116 psi
Standard ow rate in ow control direction 6 -> 0 bar: 268 cfm
Standard ow rate in non-return direction at 6 -> 0 bar: 268 cfm...279 cfm
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: 32 °F...140 °F
Max. tightening torque: 20.7 ft-lbf
Product weight: 3.85 oz
Material of screwed plug: Brass | Nickel-plated
Note on materials: RoHS compliant
Seals material: NBR
Hollow bolt material: Brass | Nickel-plated
Releasing ring material: POM

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Our sourcing response is prepared against Festo 564846. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.