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.
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Festo
190846
Non return valve H-QS-1/2-U
The Festo part number 190846 is an industrial component featuring a non-return valve function with QS-1/2 pneumatic connections on both ports for in-line installation. Constructed with an aluminum housing and weighing 68 g, it supports a normal nominal flow rate of 2000 l/min across an operating pressure range of -1 bar to 10 bar using compressed air as per ISO 8573-1:2010 [7:-:-]. This RoHS-compliant unit operates within an ambient temperature of 0 °C to 60 °C, requiring a minimum opening differential pressure of 0.1 bar and a closing differential pressure of 0.2 bar, with oil lubrication permitted. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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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
- 190846
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 190846.
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
- Non-return function
- Pneumatic connection 1
- QS-1/2
- Pneumatic connection 2
- QS-1/2
- Type of mounting
- In-line installation
- Normal nominal ow rate (normalized to DIN 1343)
- 2000 l/min
- Operating pressure
- -1 bar...10 bar
- Ambient temperature
- 0 °C...60 °C
- Housing material
- Aluminum
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:-:-]
- Min. differential pressure, opening
- 0.1 bar
- Min. differential pressure, closing
- 0.2 bar
- Information on operating and pilot media
- Operation with oil lubrication possible (required for further use)
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Product weight
- 68 g
- Note on materials
- RoHS compliant
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 190846. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.