Confirm the exact configuration
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.
Global industrial sourcing · Houston, Texas+1 417 261 6001 info@mropartsrfq.com
MROProduct image under verification
Reference imageConfirm configuration by manufacturer part number.
Festo
193966
One-way flow control valve GR-QS-4-LF
The Festo 193966 is an industrial component featuring a one-way flow control function with QS-4 pneumatic connections on both ports and a knurled screw adjusting element. This 15 g device operates within a working pressure range of 0.2 to 10 bar and an ambient temperature range of -10 to 60 °C, utilizing PA-reinforced housing and NBR seals. It delivers a standard nominal flow rate of 40 l/min in the flow control direction and 100 to 110 l/min in the non-return direction using compressed air per ISO8573-1:2010 [7:4:4]. Submit the exact part number, quantity, and application requirements for a quote.
Request pricing and availabilityCommercial response for your destination and required quantity.
Request a Quote- Manufacturer
- Festo
- Part number
- 193966
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 193966.
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
- One-way flow control function
- Pneumatic connection, port
- 2 QS-4
- Adjusting element
- Knurled screw
- Mounting type
- Optional | Front panel installation | with through hole | with accessories
- Standard nominal flow rate in flow control direction
- 40 l/min
- Standard nominal flow rate in non-return direction
- 100 ... 110 l/min
- Working pressure
- 0.2 ... 10 bar
- Ambient temperature
- -10 ... 60 °C
- Materials information, housing
- PA-reinforced
- Assembly position
- Any
- Standard flow rate in direction of flow control: 6 -> 0 bar
- 130 l/min
- Standard flow rate in blocked direction: 6 -> 0 bar
- 170 ... 185 l/min
- Operating medium
- Compressed air in accordance with ISO8573-1:2010 [7:4:4]
- Note on operating and pilot medium
- Lubricated operation possible (subsequently required for further | operation)
- Medium temperature
- -10 ... 60 °C
- Product weight
- 15 g
- Materials note
- Conforms to RoHS
- Materials information for seals
- NBR
- Release ring material data
- POM
- Regulating screw material data
- Brass | Nickel plated
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 193966. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.