190861

Name: Festo 190861 Non return valve HB-1/8-QS-5/16-U
Brand: Festo

Non return valve HB-1/8-QS-5/16-U

The Festo part number 190861 is a brass industrial component featuring a non-return valve function with a QS-5/16 pneumatic connection 1 and a 1/8 NPT pneumatic connection 2. Designed for screw-in mounting, it delivers a normal nominal flow rate of 330 l/min across an operating pressure range of -1 bar to 10 bar, while functioning within an ambient temperature of 0 °C to 60 °C. This RoHS compliant unit accommodates compressed air media as per ISO 8573-1:2010 [7:-:-] with optional oil lubrication, exhibiting a product weight of 22 g and VDMA24364-B1/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: 190861
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Verified configuration

Technical Specifications

Valve function: Non-return function
Pneumatic connection 1: QS-5/16
Pneumatic connection 2: 1/8 NPT
Type of mounting: Screw-in
Normal nominal ow rate (normalized to DIN 1343): 330 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-B1/B2-L
Product weight: 22 g
Note on materials: RoHS compliant

Engineering context

Identification and RFQ Guidance

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Technical verification

Our sourcing response is prepared against Festo 190861. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.