193970

Name: Festo 193970 One-way flow control valve GR-QS-8
Brand: Festo

One-way flow control valve GR-QS-8

The Festo part number 193970 is an industrial component featuring a one-way flow control function with QS-8 pneumatic connections on both ports and a knurled screw adjusting element. Constructed with a PA-reinforced housing, NBR seals, and a POM releasing ring, this 23 g valve supports a standard nominal flow rate of 265 l/min in the flow control direction and 500 l/min in the non-return direction under an operating pressure of 0.2 bar to 10 bar. It accommodates compressed air as per ISO 8573-1:2010 [7:4:4] within an ambient and medium temperature range of -10 °C to 60 °C, permits optional front panel mounting, through-hole mounting, or accessory mounting in any position, and includes ATEX certification for Zones 1, 2, 21, and 22. Submit the exact part number, quantity, and application requirements to receive a formal quotation.

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Manufacturer: Festo
Part number: 193970
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Technical Specifications

Valve function: One-way ow control function
Pneumatic connection 1: QS-8
Pneumatic connection 2: QS-8
Adjusting element: Knurled screw
Type of mounting: Alternatively: | Front panel mounting | With through-hole | With accessories
Standard nominal ow rate in ow control direction: 265 l/min
Standard nominal ow rate in non-return direction: 500 l/min
Operating pressure: 0.2 bar...10 bar
Ambient temperature: -10 °C...60 °C
Housing material: PA-reinforced
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 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
Temperature of medium: -10 °C...60 °C
Product weight: 23 g
Note on materials: RoHS compliant
Seals material: NBR
Releasing ring material: POM
Knurled head material: PA-reinforced

Engineering context

Identification and RFQ Guidance

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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.

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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 193970. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.