534666

Name: Festo 534666 One-way flow control valve GRLA-3/8-QB-3/8-U
Brand: Festo

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

The Festo 534666 is an industrial component featuring an exhaust air flow control non-return function with a QB-3/8 pneumatic connection 1 and a 3/8 NPT pneumatic connection 2. It utilizes a manual actuation type with a slotted screw adjusting element and is designed for screw-in mounting with an external thread in any mounting position. The nickel-plated brass screwed plug supports an operating pressure of -13.8 psi to 116 psi across an ambient and medium temperature range of 32 °F to 140 °F, while delivering a standard nominal flow rate of 130 cfm in the flow control direction. Submit the exact part number, quantity, and application requirements for a quote.

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Manufacturer: Festo
Part number: 534666
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Technical Specifications

Valve function: Exhaust air ow control non-return function
Pneumatic connection 1: QB-3/8
Pneumatic connection 2: 3/8 NPT
Actuation type: Manual
Adjusting element: Slotted screw
Type of mounting: Screw-in | With external thread
Standard nominal ow rate in ow control direction: 130 cfm
Standard nominal ow rate in non-return direction: 100 cfm...132 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: 206 cfm
Standard ow rate in non-return direction at 6 -> 0 bar: 206 cfm...214 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: 16.2 ft-lbf
Product weight: 2.48 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 534666. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.