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 3535665 is a 2/2-way closed monostable industrial component featuring a poppet valve with a piston actuator and soft sealing principle for handling vapor, hydraulic fluid based on mineral oil, inert gas, mineral oil, water, filtered compressed air with a 200 µm filter mesh, and neutral liquids up to a max viscosity of 600 mm²/s. Operating via pneumatic external control with an operating pressure of 0.6 MPa to 1 MPa (6 bar to 10 bar, 87 psi to 145 psi) and a medium pressure range of 0 MPa to 1 MPa (0 bar to 10 bar), this non-reversible unit allows under-valve-seat flow direction for gaseous and liquid media across a medium temperature range of -40 °C to 200 °C. It utilizes a mechanical spring reset method, unthrottled exhaust air function, G1 threaded sleeve cable connection as per DIN ISO 228, G1/8 internal thread pneumatic connection, and nominal width of 23 mm for in-line installation in any mounting position. 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 3535665. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.