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Festo
534657
One-way flow control valve GRLA-1/8-QB-3/16-U
The Festo part number 534657 is an industrial component featuring an exhaust air flow control non-return function, a QB-3/16 pneumatic connection 1, and a 1/8 NPT pneumatic connection 2. It utilizes a manual actuation type with a slotted screw adjusting element and screw-in external thread mounting, constructed with a nickel-plated brass screwed plug weighing 0,66 oz. This unit operates within a temperature range of 32 °F to 140 °F, an operating pressure of -13,8 psi to 116 psi, and accommodates compressed air as per ISO 8573-1:2010 [7:4:4] with possible oil lubrication. Please submit the exact part number, quantity, and application requirements for a quote.
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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
- 534657
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 534657.
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
- Exhaust air flow control non-return function
- Pneumatic connection 1
- QB-3/16
- Pneumatic connection 2
- 1/8 NPT
- Actuation type
- Manual
- Adjusting element
- Slotted screw
- Type of mounting
- Screw-in | With external thread
- Standard nominal flow rate in flow control direction
- 30,4 cfm
- Standard nominal flow rate in non-return direction
- 23,5 cfm...31,1 cfm
- Ambient temperature
- 32 °F...140 °F
- Mounting position
- Any
- Operating pressure for entire temperature range
- -13,8 psi...116 psi
- Standard flow rate in flow control direction 6 -> 0 bar
- 48,9 cfm
- Standard flow rate in non-return direction at 6 -> 0 bar
- 48,9 cfm...50,7 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
- 5,2 ft-lbf
- Product weight
- 0,66 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
Engineering context
Identification and RFQ Guidance
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 534657. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.