Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Festo
The Festo 8172839 is an 18 mm electrical industrial component featuring a 5/3 exhausted valve function with a piston gate valve structural design and a mechanical spring reset method. It operates on 24V DC within an operating pressure range of 0.3 MPa to 0.8 MPa (3 bar to 8 bar), delivering a normal nominal flow rate of 910 l/min through a G1/4 pneumatic working port. This piloted unit includes internal pilot air supply, an adjustable exhaust air function, a soft sealing principle, a nominal width of 6.5 mm, indeterminate overlap, IP40 degree of protection, and detenting, non-detenting, or covered manual override options for any mounting position. It holds c UL us recognition under UL MH19482 alongside the RCM compliance mark. Submit the exact part number, quantity, and application requirements to receive a formal quote.
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.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Festo 8172839. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.