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 3539815 is an externally controlled industrial component featuring a poppet valve with a piston actuator and a soft sealing principle. This 2/2-way, closed, monostable pneumatic valve operates with a nominal width of 31 mm, a non-reversible flow direction above the valve seat for gaseous media, and a mechanical spring reset method. It accommodates vapor, inert gas, and filtered compressed air with a maximum viscosity of 600 mm²/s within a medium temperature range of -40 °C to 200 °C. 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 3539815. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.