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 3539178 is an externally controlled industrial component featuring a 2/2-way closed monostable valve function with a poppet valve and piston actuator design. It utilizes soft sealing, a 16 mm nominal width, and a G3/4 threaded sleeve cable connection per DIN ISO 228 to handle vapor, inert gas, and filtered compressed air within a medium temperature range of -10 °C to 80 °C. Operating at pressures from 6 bar to 10 bar with non-reversible flow above the valve seat, this in-line mounted unit incorporates mechanical spring reset and a G1/8 internal thread pneumatic connection. Submit the exact part number, quantity, and application requirements to receive a formal quotation for this component.
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 3539178. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.