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Festo
173177
Pneumatic valve VL-5/3E-1/8-B1
The Festo 173177 is a 5/3 exhausted pneumatic industrial component featuring a 17.8 mm width, a 5 mm nominal size, and an 18 mm grid dimension with a piston slide design structure. This UL-recognized part delivers a standard nominal flow rate of 350 l/min across a working pressure range of -0.9 to 10 bar utilizing direct piloting with an external pilot air supply and a pilot pressure of 3 to 8 bar. Incorporating a mechanical spring reset, soft sealing principle, throttleable exhaust-air function, and reversible flow direction, it operates with a positive overlap lap, a b value of 0.5, and allows any assembly position without a manual override. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
Request pricing and availabilityCommercial response for your destination and required quantity.
Request a Quote- Manufacturer
- Festo
- Part number
- 173177
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 173177.
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Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Valve function
- 5/3 exhausted
- Type of actuation
- pneumatic
- Width
- 17.8 mm
- Standard nominal flow rate
- 350 l/min
- Working pressure
- -0.9 ... 10 bar
- Design structure
- Piston slide
- Type of reset
- mechanical spring
- Authorization
- UL - Recognized (OL)
- Nominal size
- 5 mm
- Grid dimension
- 18 mm
- Exhaust-air function
- throttleable
- Sealing principle
- soft
- Assembly position
- Any
- Manual override
- None
- Type of piloting
- direct
- Pilot air supply
- external
- Flow direction
- reversible
- Lap
- Positive overlap
- Pilot pressure
- 3 ... 8 bar
- b value
- 0.5
- C value
- 1.54 l/sbar
- Switching time off
- 22 ms
- Switching time on
- 6 ms
- Operating medium
- Compressed air in accordance with ISO8573-1:2010 [7:4:4]
- Note on operating and pilot medium
- Lubricated operation possible (subsequently required for further | operation)
- Vibration resistance
- Transport application test at severity level 1 in accordance with FN | 942017-4 and EN 60068-2-6
- Shock resistance
- Shock test with severity level 2 in accordance with FN 942017-5 and EN | 60068-2-27
- Corrosion resistance classification CRC
- 2 - Moderate corrosion stress
- Storage temperature
- -20 ... 40 °C
- Medium temperature
- -5 ... 50 °C
- Sound pressure level
- 75 dB(A)
- Pilot medium
- Compressed air in accordance with ISO8573-1:2010 [7:4:4]
- Ambient temperature
- -5 ... 50 °C
- Product weight
- 95 g
- Mounting type
- with through hole
- Pilot air port 12
- M5
- Pilot air port 14
- M5
- Pneumatic connection, port
- 1 G1/8
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 173177. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.