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Festo
10840
Pneumatic valve VL/O-3-1/8-B-NPT
The Festo part number 10840 is a 26 mm wide pneumatic industrial component featuring a 3/2 open/closed monostable valve function with a plate seat structural design and a soft sealing principle. This directly controlled unit delivers a normal nominal flow rate of 500 l/min through 1/8 NPT pneumatic working ports, operating across a pressure range of -0.095 MPa to 1 MPa with an adjustable exhaust air function and a maximum switching frequency of 12 Hz. It utilizes a mechanical spring reset method, an external pilot air supply port, and a pilot pressure range of 1 bar to 10 bar in any mounting position with a reversible flow direction and negative overlap. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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- Manufacturer
- Festo
- Part number
- 10840
- Data verification
- Manufacturer evidence reviewed
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Exact part-number verificationTechnical properties are matched to 10840.
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Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Valve function
- 3/2, open/closed, monostable
- Actuation type
- Pneumatic
- Width
- 26 mm
- Normal nominal ow rate (normalized to DIN 1343)
- 500 l/min
- Pneumatic working port
- 1/8 NPT
- Operating pressure
- -0.095 MPa...1 MPa | -0.95 bar...10 bar
- Structural design
- Plate seat
- Reset method
- Mechanical spring
- Nominal width
- 5 mm
- Width dimension
- 27 mm
- Exhaust air function
- Adjustable
- Sealing principle
- Soft
- Mounting position
- Any
- Type of control
- directly
- Pilot air supply port
- External
- Flow direction
- Reversible
- Lap
- Negative overlap
- Pilot pressure MPa
- 0.1 MPa...1 MPa
- Pilot pressure
- 1 bar...10 bar
- Max. switching frequency
- 12 Hz
- Switching time off
- 10 ms
- On switching time
- 4 ms
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:4:4]
- Information on operating and pilot media
- Operation with oil lubrication possible (required for further use)
- Corrosion resistance class (CRC)
- 1 - Low corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B2-L
- Storage temperature
- -20 °C...60 °C
- Temperature of medium
- -10 °C...60 °C
- Pilot medium
- Compressed air as per ISO 8573-1:2010 [7:4:4]
- Ambient temperature
- -10 °C...60 °C
- Product weight
- 150 g
- Official Festo technical specifications
- Valve function 3/2, open/closed, monostable Actuation type Pneumatic Width 26 mm Normal nominal ow rate (normalized to DIN 1343) 500 l/min Pneumatic working port 1/8 NPT Operating pressure -0.095 MPa...1 MPa -0.95 bar...10 bar Structural design Plate seat Reset method Mechanical spring Nominal width 5 mm Width dimension 27 mm Exhaust air function Adjustable Sealing principle Soft Mounting position Any Type of control directly Pilot air supply port External Flow direction Reversible Lap Negative overlap Pilot pressure MPa 0.1 MPa...1 MPa Pilot pressure 1 bar...10 bar Max. switching frequency 12 Hz Switching time off 10 ms On switching time 4 ms Operating medium Compressed air as per ISO 8573-1:2010 [7:4:4] Information on operating and pilot media Operation with oil lubrication possible (required for further use) Corrosion resistance class (CRC) 1 - Low corrosion stress LABS (PWIS) conformity VDMA24364-B2-L Storage temperature -20 °C...60 °C Temperature of medium -10 °C...60 °C Pilot medium Compressed air as per ISO 8573-1:2010 [7:4:4] Ambient temperature -10 °C...60 °C Product weight 150 g 6/5/26 –
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 10840. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.