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Products/Festo/190857
Festo 190857 Non return valve HB-10-32-UNF-QSM-5/32-U
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Festo

190857

Non return valve HB-10-32-UNF-QSM-5/32-U

The Festo 190857 is an industrial brass component featuring a non-return valve function with a QS-5/32 pneumatic connection 1 and a 10-32 UNF-2A pneumatic connection 2 for screw-in mounting. This part operates within a pressure range of -1 bar to 10 bar, an ambient temperature of 0 °C to 60 °C, and delivers a normal nominal flow rate of 145 l/min using compressed air according to ISO 8573-1:2010 [7:-:-]. Weighing 7.2 g with RoHS-compliant materials, it requires a minimum opening differential pressure of 0.1 bar and closing differential pressure of 0.2 bar, supporting oil lubrication operation and VDMA24364-B2-L LABS conformity. Submit the exact part number, quantity, and application requirements for a formal quote.

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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
190857
Data verification
Manufacturer evidence reviewed

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Exact part-number verificationTechnical properties are matched to 190857.
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-5/32
Pneumatic connection 2
10-32 UNF-2A
Type of mounting
Screw-in
Normal nominal ow rate (normalized to DIN 1343)
145 l/min
Operating pressure
-1 bar...10 bar
Ambient temperature
0 °C...60 °C
Housing material
Brass
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-B2-L
Product weight
7.2 g
Note on materials
RoHS compliant

Engineering context

Identification and RFQ Guidance

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.

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 190857. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.