11691

Name: Festo 11691 Non return valve H-1/2-B
Brand: Festo

Non return valve H-1/2-B

The Festo part number 11691 is an industrial component featuring a non-return valve function with G1/2 pneumatic connections on both ports. Built with an anodized wrought aluminum alloy housing and NBR seals, it operates within a pressure range of 0.4 bar to 12 bar and a standard nominal flow rate of 5500 l/min from port 1 to 2. This screw-in unit supports any mounting position, an operating medium of compressed air as per ISO 8573-1:2010 [7:4:4], and an ambient temperature range of -10 °C to 60 °C. Submit the exact part number, quantity, and application requirements to receive a quote for this component.

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Manufacturer: Festo
Part number: 11691
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Technical Specifications

Valve function: Non-return function
Pneumatic connection 1: G1/2
Pneumatic connection 2: G1/2
Type of mounting: Screw-in
Operating pressure: 0.04 MPa...1.2 MPa | 0.4 bar...12 bar
Ambient temperature: -10 °C...60 °C
Housing material: Wrought aluminum alloy, anodized
Operating medium: Compressed air as per ISO 8573-1:2010 [7:4:4]
Mounting position: Any
Standard nominal ow rate 1->2 (6-5): 5500 l/min
Information on operating and pilot media: Operation with oil lubrication possible (required for further use)
Corrosion resistance class (CRC): 2 - Moderate corrosion stress
LABS (PWIS) conformity: VDMA24364-B2-L
Storage temperature: -10 °C...60 °C
Temperature of medium: -10 °C...60 °C
Max. tightening torque: 40 Nm
Product weight: 58.3 g
Note on materials: RoHS compliant
Seals material: NBR
Official Festo technical specifications: Valve function Non-return function Pneumatic connection 1 G1/2 Pneumatic connection 2 G1/2 Type of mounting Screw-in Operating pressure 0.04 MPa...1.2 MPa 0.4 bar...12 bar Ambient temperature -10 °C...60 °C Housing material Wrought aluminum alloy, anodized Operating medium Compressed air as per ISO 8573-1:2010 [7:4:4] Mounting position Any Standard nominal ow rate 1->2 (6-5) 5500 l/min Information on operating and pilot media Operation with oil lubrication possible (required for further use) Corrosion resistance class (CRC) 2 - Moderate corrosion stress LABS (PWIS) conformity VDMA24364-B2-L Storage temperature -10 °C...60 °C Temperature of medium -10 °C...60 °C Max. tightening torque 40 Nm Product weight 58.3 g Note on materials RoHS compliant Seals material NBR 6/5/26 –

Engineering context

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Our sourcing response is prepared against Festo 11691. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.