151172

Name: Festo 151172 One-way flow control valve GRLA-1/4-B
Brand: Festo

One-way flow control valve GRLA-1/4-B

The Festo 151172 is an industrial component featuring an exhaust air flow control non-return function with an internal thread G1/4 pneumatic connection 1 and an external thread G1/4 pneumatic connection 2. This part includes a slotted screw adjusting element for screw-in mounting, offering a standard nominal flow rate of 610 l/min in the flow control direction and 450 l/min to 820 l/min in the non-return direction across an operating pressure range of 0.3 bar to 10 bar. Designed for compressed air as per ISO 8573-1:2010 [7:4:4] with possible oil lubrication, it operates in ambient temperatures from -10 °C to 60 °C and features ATEX explosion protection for Zones 1, 2, 21, and 22. Submit the exact part number, quantity, and application requirements for a quote.

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Manufacturer: Festo
Part number: 151172
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Technical Specifications

Valve function: Exhaust air ow control non-return function
Pneumatic connection 1: Internal thread G1/4
Pneumatic connection 2: External thread G1/4
Adjusting element: Slotted screw
Type of mounting: Screw-in
Standard nominal ow rate in ow control direction: 610 l/min
Standard nominal ow rate in non-return direction: 450 l/min...820 l/min
Ambient temperature: -10 °C...60 °C
Maritime classication: See certicate
Explosion prevention and protection: Observe the information on the certicate | Zone 1 (ATEX) | Zone 2 (ATEX) | Zone 21 (ATEX) | Zone 22 (ATEX)
Mounting position: Any
Operating pressure for entire temperature range: 0.3 bar...10 bar
Standard ow rate in ow control direction 6 -> 0 bar: 1200 l/min
Standard ow rate in non-return direction at 6 -> 0 bar: 885 l/min...1615 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
Temperature of medium: -10 °C...60 °C
Nominal width: 6 mm
Max. tightening torque: 11 Nm
Product weight: 59 g
Material of screwed plug: Wrought aluminum alloy

Engineering context

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Our sourcing response is prepared against Festo 151172. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.