190854

Name: Festo 190854 Non return valve HA-1/4-QS-5/16-U
Brand: Festo

Non return valve HA-1/4-QS-5/16-U

The Festo part number 190854 is an industrial component featuring a non-return valve function with a 1/4 NPT pneumatic connection 1 and a QS-5/16 pneumatic connection 2. Constructed with a brass housing and weighing 24 g, this RoHS compliant screw-in unit operates within a pressure range of -1 bar to 10 bar and handles a normal nominal flow rate of 766 l/min for compressed air conforming to ISO 8573-1:2010 [7:-:-]. It requires a minimum opening differential pressure of 0.1 bar, a minimum closing differential pressure of 0.2 bar, and functions in ambient temperatures from 0 °C to 60 °C with oil lubrication permitted. Submit the exact part number, quantity, and application requirements for a quote.

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Manufacturer: Festo
Part number: 190854
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Technical Specifications

Valve function: Non-return function
Pneumatic connection 1: 1/4 NPT
Pneumatic connection 2: QS-5/16
Type of mounting: Screw-in
Normal nominal ow rate (normalized to DIN 1343): 766 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: 24 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 190854. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.