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Festo
8157642
One-way flow control valve VFOE-LE-T-M5-Q4-F1A
The Festo part number 8157642 is an industrial component featuring an exhaust air flow control non-return function with a QS-4 pneumatic connection 1 and an M5 pneumatic connection 2. It utilizes a manual actuation type with a rotary knob with latch adjusting element, supports screw-in mounting in any position, and operates within an ambient temperature range of -10 °C to 60 °C. Housed in PBT, this component provides a standard nominal flow rate of 90 l/min in the flow control direction and 50 l/min to 90 l/min in the non-return direction, while offering explosion protection for ATEX Zones 1, 2, 21, and 22 in accordance with certificate documentation. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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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
- 8157642
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 8157642.
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
- Exhaust air ow control non-return function
- Pneumatic connection 1
- QS-4
- Pneumatic connection 2
- M5
- Actuation type
- Manual
- Adjusting element
- Rotary knob with latch
- Type of mounting
- Screw-in
- Standard nominal ow rate in ow control direction
- 90 l/min
- Standard nominal ow rate in non-return direction
- 50 l/min...90 l/min
- Ambient temperature
- -10 °C...60 °C
- Housing material
- PBT
- Explosion prevention and protection
- Observe the information on the certicate | Zone 1 (ATEX) | Zone 2 (ATEX) | Zone 21 (ATEX) | Zone 22 (ATEX)
- Mounting position
- Any
- Width across ats
- 9 mm
- Rotatability
- 360 deg/continuous swiveling not permissible
- Variants
- Metals with copper, zinc or nickel by mass as main constituent are | excluded from use. Exceptions are nickel in steel, chemically nickel- | plated surfaces, printed circuit boards, cables, electrical plug connectors | and coils.
- Operating pressure for entire temperature range
- 0.02 MPa...1 MPa | 0.2 bar...10 bar | 2.9 psi...145 psi
- Standard ow rate in ow control direction 6 -> 0 bar
- 150 l/min
- Standard ow rate in non-return direction at 6 -> 0 bar
- 130 l/min...160 l/min
- 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)
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 8157642. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.