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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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Festo
190947
One-way flow control valve GRLA-1/4-NPT-QS-3/8-U
The Festo 190947 is an industrial one-way flow control valve featuring a knurled screw adjusting element and two NPT1/4-18 pneumatic connection ports. Operating across a working pressure range of 1 to 9 bar in ambient and medium temperatures from 0 to 60 °C, this 40.5 g component delivers a standard nominal flow rate of 201 l/min in the flow control direction and 209 l/min in the non-return direction. The unit is constructed with a PBT-reinforced housing, a brass screw-in stud, and a POM release ring, and it supports assembly in any position using filtered lubricated or unlubricated compressed air. Submit the exact part number, quantity, and application requirements to request a quote.
Request pricing and availabilityCommercial response within one business day for your destination and required quantity.
Request a QuoteWhy no listed price?
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
- 190947
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 190947.
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 NPT1/4-18
- Adjusting element
- Knurled screw
- Standard nominal flow rate in flow control direction
- 201 l/min
- Standard nominal flow rate in non-return direction
- 209 l/min
- Working pressure
- 1 ... 9 bar
- Ambient temperature
- 0 ... 60 °C
- Materials information, housing
- PBT-reinforced
- Operating medium
- Compressed air, filtered, unlubricated | Filtered, lubricated air
- Assembly position
- Any
- Medium temperature
- 0 ... 60 °C
- Product weight
- 40.5 g
- Materials information for screw-in stud
- Brass
- Release ring material data
- 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 190947. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.