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 part number 173155 is an electrical 5/3 pressurized industrial component featuring a piston slide design structure with a nominal size of 5 mm and a width of 17.8 mm. This piloted valve utilizes an external pilot air supply, a soft sealing principle, throttleable exhaust-air function, and mechanical spring reset with freedom from overlap across a working pressure range of -0.9 to 10 bar and a standard nominal flow rate of 500 l/min. Featuring IP65 protection class, an 18 mm grid dimension, c UL us Recognized authorization, and a detenting manual override used with accessories, the unit operates in any assembly position while requiring a switching frequency of at least once a week for forced dynamisation. Submit the exact part number, quantity, and application requirements to request a 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 173155. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.